october 20, 2017 dear sir/madam
TRANSCRIPT
October 20, 2017
Dear Sir/Madam: Attached is Addendum No. 1 for SEPTA's Sealed Bid Number 17-00195-AJEB Stormwater Improvements at Wynnefield Avenue Station Project. The bid opening date and time scheduled for Wednesday, October 25, 2017 at 11AM has changed until Monday October 30, 2017 at 11AM. The bids will be opened in Conference Room 11-B of SEPTA's General Offices, 1234 Market Street, 11th Floor Philadelphia, Pennsylvania 19107. Any inquiries regarding this bid must be directed to Justin Benante of the Procurement and Supply Chain Management Department at (215) 580-7022.
Sincerely,
X
Justin Benante Sr. Contract Administrator Procurement & Supply Chain Management Dept.
Addendum #1
October 20, 2017
1 | P a g e
SEALED BID No. 17-00195-AJEB
Stormwater Improvements at Wynnefield Avenue Station
ADDENDUM No. 1
To All Bidders:
The following constitutes Addendum No. 1 to SEPTA's Sealed Bid No. 17-00195-AJEB Stormwater Improvements at
Wynnefield Avenue Station Project. The Bid Due Date has changed from Wednesday, October 25, 2017 at 11AM
until Monday October 30, 2017 at 11AM. Addendum No. 1 must be acknowledged by inserting the date of the
Addendum on Page 14 of the Bid Form. Failure to do so may render a bidder's proposal as non-responsive.
Questions and Answers issued with this Addendum No. 1 are hereby incorporated by reference and made part of the
Terms and Conditions of this project
A. General
1. The Bid Due Date has changed from Wednesday, October 25, 2017 at 11AM until Monday October 30,
2017 at 11AM. 2. Please replace original Schedule A with attached revised Schedule A labeled: Schedule A- Addendum #1.
B. Specifications
1. Replace original section 01010: Summary of Work with attached updated section 01010: Summary of Work.
2. Replace original section 01011: Summary of Project with attached updated section 01011: Summary of
Project.
3. Add attached updated section 02230: Site Preparation.
4. Replace original section 02300: Excavation, Backfill and Compaction with attached updated section 02300.
5. Replace original section 02520: Bituminous Concrete Paving with attached updated section 02520.
C. Drawings
1. Replace Original Drawing C502 with attached updated drawing C502.
2. Replace Original Drawing C503 with attached updated drawing C503.
3. Replace Original Drawing C600 with attached updated drawing C600.
4. Replace Original Drawing C800 with attached updated drawing C800.
D. Questions and Answers
1. Please see attached Question/Answer Sheet Labeled: Bidder Questions Addendum #1. Answers to questions
are in red.
SCHEDULE A – Addendum #1 SCHEDULE OF ITEMS
ITEMS AND LUMP SUM PRICES BID
Project Name: Stormwater Improvements at Wynnefield Avenue Station
ITEM NO. DESCRIPTION TOTAL PRICE
1 EROSION AND SEDIMENTATION CONTROL
Provide all labor, material, supervision, and equipment for erosion and
sedimentation control.
$
2 FIELD ENGINEERING
Provide all labor, material, supervision, and equipment for, but not limited
to, field engineering services, including surveying and site layout.
$
3 EXCAVATION
Provide all labor, material, supervision, and equipment for, but not limited
to, excavation support and protection, earthwork, grading, and site
restoration.
$
4 SOIL MANAGEMENT
Provide all labor, material, supervision, and equipment for, but not limited
to, the removal, transportation, and disposal of excavated soils.
$
5 DRAINAGE
Provide all labor, material, supervision, and equipment for, but not limited
to, the installation of inlets, manholes, piping, utility tie-ins, and related
work.
$
6 UNDERGROUND STORMWATER INFILTRATION BASINS
Provide all labor, material, supervision, and equipment for, but not limited
to, the installation of stone, modular units, geotextile fabric, geogrid,
maintenance ports/risers and asphalt paving above basin footprints for
Underground Infiltration Basins 1 and 2.
$
7 LANDSCAPING
Provide all labor, material, supervision, and equipment for, but not limited
to, landscaping, plantings, and services.
$
CONTRACT SUM (SUM OF ALL ITEMS #1 THRU #7): $
From: ___________________________________________________________________
Name of Bidder
___________________________________________________________________
Address of Bidder
____________________________________________________________________
City, State, Zip
____________________________________________________________________
Telephone Number FAX Number (if available)
____________________________________________________________________
E-Mail Address (if available)
Basis of Award: Please refer to instructions to Bidders Item #4
TABLE OF CONTENTS TOC-1
WYNNEFIELD STATION RECONSTRUCTION PROJECT
SPECIFICATION
AUGUST 2017
TABLE OF CONTENTS DIVISION 1 – GENERAL REQUIREMENTS
01010 SUMMARY OF WORK 01010-1 to 01010-6 01011 SUMMARY OF PROJECT 01011-1 to 01011-3 01025 MEASUREMENT AND PAYMENT 01025-1 to 01025-2 01050 FIELD ENGINEERING 01050-1 to 01050-3 01060 REGULATORY REQUIREMENTS AND SAFETY 01060-1 to 01060-32 01200 PROJECT PROGRESS MEETINGS 01200-1 to 01200-3 01300 SUBMITTALS 01300-1 to 01300-8 01305 REQUESTS FOR INFORMATION 01305-1 to 01305-5 01380 CONSTRUCTION PHOTOGRAPHS 01380-1 to 01380-3 01400 QUALITY REQUIREMENTS 01400-1 to 01400-5 01410 TESTING AND INSPECTION SERVICES 01410-1 to 01410-3 01510 MAINTENANCE & SUPPORT OF EXISTING UTILITIES 01510-1 to 01510-7 01570 MAINTENANCE AND PROTECTION OF VEHICLES 01570-1 to 01570-7 PEDESTRIANS AND PASSENGERS 01600 MATERIALS AND EQUIPMENT 01600-1 to 01600-3 01700 CONTRACT CLOSEOUT 01700-1 to 01700-3 01710 FINAL CLEANING 01710-1 to 01710-3 01720 PROJECT AS-BUILT DOCUMENTS 01720-1 to 01720-5
DIVISION 2 – SITE CONSTRUCTION 02230 SITE PREPARATION 02230-1 to 02230-2 02231 SUBBASE COURSE 02231-1 to 02231-3 02243 GEOTEXTILE FABRIC 02243-1 to 02243-3 02300 EXCAVATION, BACKFILL AND COMPACTION 02300-1 to 02300-16 02322 EXCAVATION, BACKFILL AND COMPACTION FOR UTILITIES 02322-1 to 02322-7 02360 EXCAVATION SUPPORT SYSTEMS 02360-1 to 02360-6 02370 EROSION AND SEDIMENTATION CONTROL 02370-1 to 02370-7 02400 SOILS MANAGEMENT 02400-1 to 02400-4 02520 BITUMINOUS CONCRETE PAVING 02520-1 to 02520-5 02533 PLAIN CEMENT CONCRETE PAVEMENT 02533-1 to 02533-8 02534 POURED IN PLACE CONCRETE CURB 02534-1 to 02534-5 02605 UTILITY STRUCTURES 02605-1 to 02605-7 02721 STORM DRAINAGE SYSTEMS 02721-1 to 02721-8 02722 UNDERGROUND STORM WATER INFILTRATION BASIN 02722-1 to 02722-6 02941 LANDSCAPING, PLANTING, AND SERVICE 02941-1 to 02941-9
TABLE OF CONTENTS TOC-2
DIVISION 3 – CONCRETE 03200 CONCRETE REINFORCEMENT 03200-1 to 03200-3 03300 CAST-IN-PLACE CONCRETE 03300-1 to 03300-8 ATTACHMENT I – SOILS MANAGEMENT
SEPTA Management Program for Soils, Construction, and Demolition
Debris Generated from SEPTA Property – For Informational Purposes Only
Geotechnical Investigation Report with Soil Analytical Laboratory Data – For
Informational Purposes Only
o Geotechnical Engineering Report - 06/16/17
AUGUST 2017 WYNNEFIELD STATION RECONSTRUCTION ADDENDUM 1
SUMMARY OF WORK 01010-1
SECTION 01010 SUMMARY OF WORK PART 1 - GENERAL 1.01 DESCRIPTION OF WORK
A. This specification covers the prime contract representing significant elements of work for in the Construction of SEPTA’s Wynnefield Station Reconstruction Project.
1.02 RELATED WORK
A. Exhibit III of the Contract.
B. Section 01011: Summary of Project
C. Section 01060: Regulatory Requirements and Safety.
D. Section 01510: Maintenance and Support of Existing Utilities. 1.03 CONTRACTOR RESPONSIBILITY
A. Furnish all materials, tools, equipment, supervision and transportation, and perform all labor and services necessary to furnish, deliver, construct, install, connect, interconnect and test, as required to complete all work described in these specifications and indicated on the Contract Drawings.
Contractor shall be aware of and be familiar with the responsibilities and work of the other contractors & SEPTA especially in regards to the sections of Division I - General Requirements, which pertain to all contracts.
B. Perform all work in strict compliance with all laws, regulations, and/or codes applying, including
those of the National Fire Protection Association, OSHA, FTA, the Department of Labor and Industry, Commonwealth of Pennsylvania; and other local codes and any other authority having jurisdiction. Wherever drawings or specifications conflict with such regulations they shall be made to conform, and approval of the Project Manager obtained of such changes as may be involved.
AUGUST 2017 WYNNEFIELD STATION RECONSTRUCTION ADDENDUM 1
SUMMARY OF WORK 01010-2
C. As necessary for proper execution and completion of work and as applicable at time of receipt
of bids, secure and pay for:
1. Permits: Following is a partial list of required permits. Provide others as required. a. Street openings. b. Street closing and diversion of traffic. c. Demolition of structures. d. Utility shut-off: Water, electric, gas (from pertinent PECO, PGW, PWD, Dept. of
Licenses and Inspections). e. Connection to existing street mains. f. Removal and disposal of toxic materials, wastes, both sewage and wastewater. g. General Work Permit from SEPTA and all appropriate County and Borough offices,
to perform work in accordance with the Contract Drawings. h. Earth disturbance. i. Permit to conduct independent investigations of subsurface conditions on private
property (SEPTA permit). 2. Governmental Fees. 3. Licenses. 4. Inspection and Testing Fees. 5. Disposal Fees.
D. Give written notices necessary for, and incidental to, the due and lawful prosecution of the work.
E. Notify the Project Manager at least ten (10) days in advance of the date the individual
construction stages will be fully complete and ready for inspection.
F. Notify the Project Manager at least thirty (30) days in advance of the date the entire work will be substantially complete and ready for inspection.
G. Notify the Project Manager at least ten (10) days in advance of the date the entire work will be
complete and ready for final inspection.
H. When applicable, submit to the representative of an agency accepting the work, a copy of the notice sent to the Project Manager as specified in Articles 1.03.F. and 1.03.G., above.
I. Make arrangements for legally disposing of waste and excess materials off the worksite and
pay all costs thereof in accordance with SEPTA Management Program for Soils, Construction, and Demolition Debris Generated from SEPTA Property, Document #3005, Dated May 2009 (or current version).
1. Prior to disposing of material outside the work site, obtain written permission from the owner on whose property the disposal will be made. File with the Project Manager said permit, or a certified copy thereof, together with a written release from the property owner absolving SEPTA from any and all responsibility in the connection with the disposal of material on said property.
AUGUST 2017 WYNNEFIELD STATION RECONSTRUCTION ADDENDUM 1
SUMMARY OF WORK 01010-3
J. Existing utilities are indicated on the Contract Drawings in accordance with PA Law concerning public utilities as specified in Section 01060. Verify location of existing utilities prior to working in or adjacent to areas containing existing utilities.
1. Notify utility owners as specified in Section 01510 prior to intended start work date in an area in which the utilities may be located. Deliver a copy of the notice to the Project Manager within 48 hours of the submittal of the 14 day notification. Notify utility companies and the Project Manager 72 hours before beginning work.
K. Until final acceptance of the work by SEPTA, assume the charge and care thereof and take
every reasonable precaution against injury or damage to any part thereof by the action of the elements, theft, vandalism, or from any other cause, whether arising from the execution or from the non-execution of the work. Each Contractor shall rebuild, repair, restore, and make good, to the satisfaction of the Project Manager, all injuries or damages to any portion of the work occasioned by any of the above causes before final acceptance and shall bear the expense thereof at no cost to SEPTA.
1.04 CONTRACTOR’S FIELD STAFF:
A. Superintendent: The Superintendent shall be the Contractor’s principal representatives and be responsible for all communications with the SEPTA Project Manager. The Superintendent shall have demonstrated competency in the construction of infrastructure projects in the City of Philadelphia and successful coordination with other Contractors on multi-prime projects.
B. Safety Officer: The Contractor shall assign a designated on-site Safety Officer. The
Contractor’s Superintendent may perform the duties of the Safety Officer in addition to their own. The presence of the Safety Officer at the site is mandatory while work is being performed.
C. CQC Manager: The Contractor shall assign a CQC Manager for the duration of the work.
Those duties may be shared with other duties assigned to a member of the Contractor’s staff. D. Staff Qualifications: The work of this Contract requires at least a 5 year job-related experience the Work of the
Contract. The positions referenced above in Paragraph 1.04 are considered key personnel and the review of their resumes and experience is a responsibility requirement under paragraph 4d 5) of the Instruction to Bidders. The successful bidder shall furnish SEPTA with the resumes for the people who will hold the above positions within five (5) days of receipt of SEPTA’s written request.
If in the course of the work, these individuals are proposed to be replaced by the Contractor and/or SEPTA deems that their work is no longer satisfactory, the terms of the Paragraph VII K of the Agreement will be invoked.
AUGUST 2017 WYNNEFIELD STATION RECONSTRUCTION ADDENDUM 1
SUMMARY OF WORK 01010-4
1.05 SEPTA RESPONSIBILITIES
A. SEPTA shall, furnish free of charge to the Contractor, three (3) complete sets of the Contract
Documents including full-size, conformed Contract Drawings and Technical Specifications. Additional copies are available from Project Manager at cost of reproduction.
1.06 CONTRACTORS USE OF WORKSITE
A. General:
1. Confine operations at the site to areas permitted by law, permits, according to the schedule and the Contract Documents, and do not unreasonably encumber the site with materials or equipment.
2. Keep existing driveways and entrances serving the premises clear and available at all times.
3. Consider the safety of the work and that of people and property on and adjacent to worksite, when determining amount, location, movement, and use of materials and equipment on worksite.
4. Do not load finished work with equipment and products which would endanger the integrity of the finished work.
5. Move stored products which interfere with foreseeable operations of SEPTA, public and private utilities, and other Contractors at no expense to SEPTA.
6. Security of stored materials will be the Contractor's responsibility. Secure additional storage and work areas needed for construction operations at no additional expense to SEPTA and absolve SEPTA from any and all responsibility in connection with the use of such property.
7. Protect the general public and SEPTA from construction-related activities; do not unduly inconvenience those persons by construction activities. Conduct work in and on streets in a manner which will ensure that pedestrian and vehicular traffic will either not be obstructed or obstructed to the least possible degree.
8. Promptly vacate the worksite upon completion of the work by the Contractor and acceptance of the work by SEPTA.
1.07 WORK SEQUENCE
A. Construction Work Sequence:
1. All demolition and installation shall be executed in a manner where all construction shall be watertight at the end of each workday.
1.08 SEPTA OCCUPANCY AND USE
A. Portions of the work will be placed in operation by SEPTA in advance of the completion of all work, following an inspection to determine completion of these portions of the work and completion of appropriate field tests.
AUGUST 2017 WYNNEFIELD STATION RECONSTRUCTION ADDENDUM 1
SUMMARY OF WORK 01010-5
B. Operation of parts of the work by SEPTA will not relieve the Contractor of any responsibility for properly integrating operations of all parts of the work, nor shall it act to relieve them of any responsibilities under the Contract Documents for warranty of the work.
1.09 EXISTING SITE CONDITIONS
A. The work of this Contract will be constructed in a very active and busy geographical area with many public and private property facilities which may interfere with the Contractor's activities.
B. Site storage for materials and equipment is limited. The Contractor is advised to schedule
material and equipment deliveries to coincide with their need on the job. C. There are no available parking areas on SEPTA's property for the Contractor's work force. D. The existing conditions represented in the Contract Drawings are based on the best available
information obtained from one or any combination of the following sources: field survey, as-built documents, reference drawings, or visual investigation. Every effort has been made to present as much information as is possible to obtain.
E. The Contractor is responsible for the fit and function of all new construction. To this end, the
Contractor accepts the responsibility of visually and physically verifying, at no additional cost to SEPTA, all existing conditions presented in the Contract Drawings. Perform visual verification prior to submitting a bid. Physical verification may be performed before submitting a bid, or following the Notice to Proceed. Report differences from the visual and physical verifications to the Project Manager. If verified conditions are close to those represented on the Contract Drawings, in addition to reporting the verification to the Project Manager, proceed with the new work at no additional cost to SEPTA. If, in the sole opinion of SEPTA, conditions are significantly different to those presented on the Contract Drawings, in addition to reporting the verification to the Project Manager, submit a detailed scheme and associated cost for completing the required new work for review and comment. Allow 5 working days for review and comment.
F. The Contract Documents establishes specific criteria and standards of performance. The
Contractor shall use its discretion to determine means of compliance and is responsible for coordinating with other Contractors at the site in order to achieve compliance.
G. To supplement Paragraph IV of the Agreement, if there are any conflict(s) within and between
contract drawings, specifications and addenda, the Contract Sum shall include conforming to the strictest requirement(s).
1.10 JOB CONDITIONS Not used. 1.11 REFERENCED STANDARDS
A. Except where a particular dated issue is indicated as a reference standard within the technical specifications, provide materials, equipment, workmanship and design work conforming to the
AUGUST 2017 WYNNEFIELD STATION RECONSTRUCTION ADDENDUM 1
SUMMARY OF WORK 01010-6
latest edition, revision, supplement and amendment thereto in effect on the effective date of Bid Opening.
1. Any reference within PennDOT Specifications, Publication 408M, to:
a. "Department" shall be changed to mean SEPTA. b. "Engineer" shall be changed to mean the Project Manager.
B. In the event of any conflicts in the provisions stipulated in the referenced codes, regulations, or
standards and the specifications or Contract Drawings, the most stringent provision as determined by the Project Manager shall govern.
PART 2 - PRODUCTS Not used PART 3 - EXECUTION Not used END OF SECTION 01010
AUGUST 2017 WYNNEFIELD STATION RECONSTRUCTION ADDENDUM 1
SUMMARY OF PROJECT 01011-1
SECTION 01011 SUMMARY OF PROJECT PART 1 – GENERAL 1.01 DESCRIPTION
A. The work of this Contract consists of the improvements at SEPTA’s Wynnefield Station Reconstruction and includes the following:
1. Mobilization and demobilization for each stage of construction. 2. Construction of the stormwater management improvements at Wynnefield Station, such
as:
a. Maintenance and protection of vehicular traffic b. Erosion and sedimentation control measures c. Site demolition and clearing and grubbing of areas required to install stormwater
basins, manholes, inlets, pipes and tie ins d. Provide surveying professional to lay out work included in this contract and conduct a
final as-built survey of the entire site including work performed by others e. Installation of underground infiltration basins f. Installation of all inlets and manholes g. Installation of stormwater piping h. Stormwater tie-in to City sewer including restoration of paving and curbs in City ROW i. Backfilling and rough grading of areas above infiltration basins and piping j. Installation of asphalt paving above infiltration basin footprints k. Installation of all landscaping
B. The work of this Contract WILL NOT INCLUDE the following:
1. Site demolition (except those areas associated with installation of basins, manholes, inlets, pipes and tie ins)
2. Site preparation and earthwork (except those areas associated with installation of basins, manholes, inlets, pipes and tie ins)
3. Site excavation and grading (except those areas associated with installation of basins, manholes, inlets, pipes and tie ins)
4. Installation of curbs (except those disturbed within City ROW while completing stormwater tie-in)
5. Installation of asphalt paving (except paving above basin footprints and paving within City ROW while completing stormwater tie-in)
6. Installation of platform; including shelters, stairs, ramps and guardrails. 7. Installation of sidewalk 8. Installation of plaza 9. Installation of curb ramps 10. Installation of driveway 11. Installation of signage and site furnishings
AUGUST 2017 WYNNEFIELD STATION RECONSTRUCTION ADDENDUM 1
SUMMARY OF PROJECT 01011-2
12. Installation of permanent fence and access gate 13. Pavement markings and striping 14. Site lighting
1.02 RELATED WORK
A. Section 01010: Summary of Work. 1.03 ADMINISTRATIVE AND PROCEDURAL SECTIONS
A. Agreement & Exhibit III - Scheduling Requirements. B. Section 01025: Measurement and Payment. C. Section 01060: Regulatory Requirements and Related Safety. D. Section 01200: Project Progress Meetings E. Section 01300: Submittals. F. Section 01305: Requests for Information G. Section 01400: Quality Requirements. H. Section 01410: Testing Laboratory Services I. Section 01600: Material & Equipment J. Section 01700: Contract Close Out
1.04 TEMPORARY FACILITIES AND SERVICES
A. Section 01510: Maintenance and Support of Existing Utilities. B. Section 01570: Maintenance and Protection of Vehicles, Pedestrians and Passengers
1.05 GENERAL CONTRACTOR (GC)
A. The General Construction Contract includes civil and general construction plus other construction operations traditionally recognized as General Construction. It also includes administrative and coordination responsibilities.
B. Other specific responsibilities of the General Construction Contractor include but are not
limited to:
1. Section 01050: Field Engineering. 2. Section 01380: Construction Photographs
AUGUST 2017 WYNNEFIELD STATION RECONSTRUCTION ADDENDUM 1
SUMMARY OF PROJECT 01011-3
C. The work under this Prime Contract includes:
1. Mobilization and demobilization for each stage of the phased construction. 2. All construction activities pertaining to the installation of the stormwater management
system at Wynnefield Station, such as:
a. Maintenance and protection of vehicular traffic b. Erosion and sedimentation control measures c. Provide surveying professional to lay out work included in this contract and conduct a
final as-built survey of the entire site including work performed by others d. Installation of underground infiltration basins e. Installation of all inlets and manholes f. Installation of stormwater piping g. Stormwater tie-in to City sewer including restoration of paving and curbs in City ROW h. Backfilling and rough grading of areas above infiltration basins and piping i. Installation of all landscaping
D. The General Construction Contract includes:
1. Work described on the following drawings:
a. All C-Series Drawings, Civil
E. Maintenance: Provide the required maintenance for all equipment and materials installed under the General construction contract in “like-new” condition until date of final payment.
PART 2 – NOT USED PART 3 – NOT USED
END OF SECTION 01011
AUGUST 2017 WYNNEFIELD STATION RECONSTRUCTION ADDENDUM 1
SITE PREPARATION 02230-1
SECTION 02230
SITE PREPARATION PART 1 - GENERAL 1.01 DESCRIPTION
A. The work specified in this Section consists of cutting vegetation, grubbing stumps and roots; clearing refuse, foundations, walls, rubbish, trash, debris, dislodged materials, asphalt pavement, curbing, light poles, bollards, concrete pavement, and cut vegetation, all within the limits of construction as part of this Contract. Haul from site all such matter and debris from the work of this Section.
RELATED WORK
A. Division 1 – General Requirements B. Section 02370 – Erosion and Sedimentation Control
SUBMITTALS
A. Refer to Section 01300 for submittal procedures.
B. If material cleared from the worksite will be deposited on private property, submit two copies of written releases not less than 15 days prior to the start of the work of this section. Releases shall absolve the Authority from responsibility in connection with the depositing of material on private property and shall be signed by owners of property on which the material will be deposited.
PART 2 - PRODUCTS Not used. PART 3 - EXECUTION 3.01 GENERAL
A. Earthwork operations shall not be started in any area where clearing and grubbing is not complete except that clearing and grubbing of items embedded in the ground such as roots and stumps may be removed concurrent with excavation in accordance with Section 02300.
3.02 GRUBBING
A. Grub in a manner which will result in entire stumps being removed and in roots larger than three inches being removed from within one foot of the indicated subgrade.
AUGUST 2017 WYNNEFIELD STATION RECONSTRUCTION ADDENDUM 1
SITE PREPARATION 02230-2
3.03 CLEARING
A. Gather, load, and transport from the worksite, foundations, refuse, rubbish, trash, debris, cut vegetation, trimmed roots and tree branches, grubbed stumps and roots, felled trees, and dislodged material.
END OF SECTION 02230
AUGUST 2017 WYNNEFIELD STATION RECONSTRUCTION ADDENDUM 1
EXCAVATION, BACKFILL, AND COMPACTION 02300-1
SECTION 02300
EXCAVATION, BACKFILL, AND COMPACTION PART 1 GENERAL 1.01 SUMMARY
A. Section includes: Excavation for pavement; excavation, and placement of compacted fill and backfill for structures; and drainage; construction of embankments; subgrade and foundation preparation; and subsurface extraction of miscellaneous structures and facilities indicated to be removed.
B. Related Sections:
1. Section 02370 – Erosion and Sedimentation Control. 2. Section 02400 – Soils Management
1.02 REFERENCES
A. American Society for Testing and Materials (ASTM):
B. Occupational Safety and Health Administration (OSHA).
C. Management of Clean Fill Policy (PADEP)
D. Management Program for Soils, Construction, and Demolition Debris Generated from SEPTA Property (SEPTA)
1.03 DEFINITIONS
A. Earthwork Terminology: Terms used in this Section and not defined herein shall be interpreted in accordance with the definitions given in ASTM D 653.
B. Approved Material: Material which meets specified requirements for use as embankment, fill, or
backfill.
C. Backfill: Soil or soil-rock material used to backfill excavations and to backfill excavated spaces around foundation walls, building walls, retaining walls, and abutments.
D. Borrow: Soil material used in embankment or other construction which is excavated from any
location other than required onsite excavations.
E. Embankment: Soil or soil-rock material placed to raise the subgrade or natural grade of the site for embankment construction.
AUGUST 2017 WYNNEFIELD STATION RECONSTRUCTION ADDENDUM 1
EXCAVATION, BACKFILL, AND COMPACTION 02300-2
F. Excavation is the removing of all materials encountered within the indicated or specified limits, regardless of the nature of the material encountered and the method by which removed, and further defined in Article 1.05 below.
G. Excess Excavation: Material excavated beyond or below cross section shown, as well as
unavoidable overbreakage in rock.
H. Imported Material: Soil or granular material which is hauled in from off-site areas.
I. Optimum Moisture Content: The water content at which a soil can be compacted to a maximum dry unit weight by a given compactive effort.
J. Relative Compaction: The ratio, expressed as a percentage, of the in-place dry density of fill
material as compacted in the field to the maximum dry density of the same material as determined by laboratory test ASTM D 1557, Method D.
K. Relative Density: Refer to ASTM D 4253 and ASTM D 4254.
L. Soil Classification: Soil classification is based on the Unified Soil Classification system given in
ASTM D 2487. Group symbols, when used, conform with the symbols of ASTM D 2487.
M. Subgrade: Subgrade is the lowest elevation of excavation and the highest elevation of embankment required to accommodate the indicated construction.
N. Unsuitable Material: Excavated material or material below the natural ground surface in
embankment areas or below subgrade elevation in excavated areas, which is unsuitable for its planned use as determined by the Engineer. Unsuitable material is further defined as material determined to be:
1. Of such unstable nature as to be incapable of being compacted to specified density using
ordinary methods at optimum moisture content; or 2. Too wet to be properly compacted and circumstances prevent suitable in-place drying prior
to incorporation into the work; or 3. Otherwise unsuitable for the planned use.
1.04 QUALITY ASSURANCE
A. Inspections and Tests: The Contractor shall provide quality control inspections and tests as specified under Article 3.14 to assure compliance with specified requirements.
B. Laboratory and Geotechnical Services: Engage the services of an approved independent soils
testing laboratory to perform the above-specified inspections and tests. Foundation and subgrade preparation and the placement and compaction of fills shall be performed under the surveillance of a (state) registered geotechnical engineer employed by the Contractor.
C. Tolerances:
AUGUST 2017 WYNNEFIELD STATION RECONSTRUCTION ADDENDUM 1
EXCAVATION, BACKFILL, AND COMPACTION 02300-3
1. Construct finished sub-grades to plus 0 or minus 1/2 inch of the elevations indicated. 2. Construct finished grade of slopes not steeper than 3:1 plus or minus 1/2 inch and on
slopes steeper than 3:1 plus or minus 2 inches. Do not encroach upon the trackway bed or roadbed.
3. Maintain the moisture content of fill material as it is being placed within plus or minus two percent of the optimum moisture content of the material as determined by the laboratory tests herein specified.
D. Blasting: Not allowed in the performance of the earthwork.
1.05 SUBMITTALS
A. In accordance with Section 01300, submit the following:
1. A schedule of all tests specified to be performed by the Contractor. 2. Three (3) copies each of test reports of all tests specified to be performed. 3. Samples: Furnish and deliver samples of fill and backfill materials as selected by the
Engineer for testing and analysis. 4. Permits for disposal of excavated material:
a. Obtain written permits and releases from owners of property where material will be deposited.
b. Submit copies of each permit and release from each property owner absolving the (owner) from responsibility in connection with such disposal.
B. Delivery Tickets: Submit a delivery ticket with each load of imported borrow material delivered to
the site, stating the type of fill material and the quantity. 1.06 CLASSIFICATION OF EARTHWORK
A. No consideration will be given to the nature of materials encountered in excavating operations. Therefore, as unclassified excavation no additional payment will be made for difficulties occurring in excavating and handling of materials.
B. Where the required quantity of backfill exceeds the quantity of suitable site material, provide
material at no increase to the Contract Price.
C. No right of property in materials is granted the contractor of excavated materials prior to backfilling.
This provision does not relieve the contractor of his responsibility to remove and dispose of surplus excavated material of excavated material not suitable for backfilling.
1.07 JOB CONDITIONS
A. Unfavorable Weather Conditions:
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1. Excavating, filling, backfilling, and grading work shall not be performed during weather conditions which might damage or be detrimental to the condition of existing ground, in-progress work, or completed work. When the work is interrupted by rain, excavating, filling, backfilling, and grading work shall not resume until the site and soil condition (moisture content) are suitable for compaction.
2. Subgrade shall be free from mud, snow, ice, and deleterious material when work is resumed.
3. Soil material which is too wet for compaction shall be left to drain, to be aerated and dried by disking and harrowing or other approved method until the moisture content of the area is uniform and within the specified limits.
B. Erosion Prevention: Protect stockpiles, ditches, embankments, filled, backfilled, and graded areas
to prevent erosion until such time as permanent drainage and erosion control measures have been installed.
C. Barricade open excavations and post with warning lights those excavations occurring on property
adjacent to or within public access. Operate warning lights during hours from dusk to dawn each day and as otherwise required.
D. Do not allow proof-rolling equipment to enter area within seven feet of piers, abutments, and
retaining walls retaining more than ten feet if equipment's gross weight exceeds 35 tons. Do not operate vibratory compactor having a gross weight more than 5,000 pounds closer than five feet to face of retaining wall. Do not operate non-vibrating equipment having an axle load of 21,000 pounds or greater closer than three feet from back of retaining wall. Grade to essentially finish grade on both sides of wall before starting to proof-roll.
E. Do not operate proof-rolling equipment having one axle loading of more than 21,000 pounds within
height-of-fill-being-retained of retaining walls retaining less than ten feet.
F. Before moving equipment, including proof-rolling equipment that exceeds 21,000 pounds for any axle, across underground duct banks having less than four feet of cover, place decking on the path of that equipment. Extend decking outward from each side of the duct bank for a distance equal to the depth of the bottom of the duct bank, but not further than four feet. Decking shall consist of a three inch thick timber platform or one inch thick steel plate. If duct bank is exposed, do not place decking directly on duct bank.
G. Use of Explosives: Is not permitted.
H. Toxic and Combustible Substances:
1. During excavation, provide equipment and carry out such tests as necessary to detect
presence of toxic and combustible substances. 2. If the presence of noxious or explosive gas is indicated, immediately discontinue
excavation operations and notify the Engineer. Do not resume work at this location until the necessary safety measures have been enforced and further tests indicate the absence of noxious and explosive gases.
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3. Take action to safeguard persons and property in accordance with rules and regulations of jurisdictional agencies and utility owners.
4. Promptly notify utility owners when problems concerning their facilities become apparent. PART 2 PRODUCTS 2.01 FILL AND BACKFILL MATERIALS
A. General Requirements:
1. Fill, backfill, and embankment material: Inert, non-expansive soil, free from organic matter and other deleterious substances, and of such quality that it will compact thoroughly without the presence of voids when watered and rolled. Excavated on-site material will be considered suitable for fill, backfill, and embankment construction if it is free from organic matter and other deleterious substances and conforms to the requirements specified herein.
2. Excavated material which is suitable for fill, backfill, and embankment construction shall be conditioned for reuse and properly stockpiled for later filling and backfilling operations. Conditioning shall consist of spreading material in layers not to exceed 8 inches and raking free of debris and rubble. Rocks exceeding four inches in largest dimension and deleterious material shall be removed from the site and disposed of as specified herein under Disposal of Surplus Material.
3. Where conditions require the importing of fill or backfill material, the material shall be an inert, non-expansive soil or soil-rock material free of organic matter and meeting or exceeding the minimum requirements specified herein for the location.
4. Fill, backfill, and embankment material shall conform to the following minimum requirements, unless otherwise specified:
a. Liquid Limit (ASTM D 4318): 40 maximum b. Plasticity Limit (ASTM D 4318): 15 maximum
B. Specific Requirements:
1. Common Fill: Well- to moderately well-graded soils consisting of sands, silts, and clays, with or without gravel, as excavated, screened, or blended, having the following physical properties and gradation:
a. Laboratory Dry Density: 95 pcf minimum b. Dry Change (ASTM D 427): 15 percent maximum c. Gradation (ASTM D 422):
Sieve Percent Passing Opening By Weight
4 inch square 100 3 inch square 85 minimum U.S. No. 200 50 maximum
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2. Common Embankment: Common fill, with the following additional requirements: a. Laboratory Dry Density: 100 pcf minimum. b. Material Retained on. c. U.S. No. 10 Sieve (ASTM D 422): 50 percent maximum. d. Material Passing U.S. No. 40 Sieve:
1) Liquid Limit (ASTM D 4318): 25 maximum. 2) Plasticity Index (ASTM D 4318): 6 maximum.
3. Select Fill: Well- to moderately well-graded soils consisting of sands, silts, and clays, with or without gravel, as excavated, screened, or blended, having the following physical properties and gradation:
a. Laboratory Dry Density: 100 pcf minimum. b. Dry Change (ASTM D 427): 10 percent maximum. c. Gradation (ASTM D 422):
Sieve Percent Passing
Opening By Weight 1 inch square 100
3/8 inch square 75 minimum U.S. No. 4 20 minimum U.S. No. 10 10 minimum
U.S. No. 200 45 maximum
d. Sand Equivalent: 15 minimum. 4. Structural Fill: Well- to moderately well-graded granular soils, as excavated, screened, or
blended, having the following mechanical properties and gradation: a. Laboratory Dry Density: 100 pcf minimum. b. Dry Change (ASTM D 427): 12 percent maximum. c. Material Retained on U.S. No. 40 Sieve (ASTM D 422): 50 percent maximum. d. Material Passing U.S. No. 40 Sieve:
1) Liquid Limit (ASTM D 4318): 25 maximum. 2) Plasticity Index (ASTM D 4318): 6 maximum.
e. Gradation (ASTM D 422): Sieve Percent Passing
Opening By Weight 2 inch square 100 1 inch square 75 minimum
3/8 inch square 30 minimum U.S. No. 4 25 minimum U.S. No. 10 15 minimum U.S. No. 40 8 minimum
U.S. No. 200 15 maximum but not more than 75 percent of the fraction passing No. 40 Sieve.
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f. Sand Equivalent: 15 minimum. 5. Structural Embankment: Structural fill, except 100 percent shall pass a four-inch square
sieve. 6. Rock Fill: Sound, dense rock and boulders to 24-inch maximum size, containing sufficient
gravels, sands, crushed or broken rock, and enough fine material to fill all interstices. Material passing U.S. No. 40 Sieve, liquid limit: 30 percent maximum.
7. Select Rock Fill: As specified for Rock Fill, except that the maximum size of rock fragments and boulders shall be such that the material can be readily placed in layers not over 8 inches thick.
2.02 MATERIALS FOR EARTHWORK
A. Fill and Backfill Materials: Where specific fill, backfill, and embankment materials are not indicated on Contract Drawings, conform to the following requirements:
1. Embankment: Structural Embankment. 2. Rock Fill: Fill or embankment may be Rock Fill at depths greater than 6 feet below finished
subgrade, and Select Rock Fill at depths from one to 6 feet below finished subgrade. 3. Subgrade and Foundation: Structural Fill for a depth of not less than 6 inches. 4. Backfill against Concrete Walls and Waterproofing: Select Fill. 5. Backfill for Wing-walls, Retaining Walls, and Abutments: Structural Fill. 6. Backfill for Abandoned Vaults (including airways, cross adits, and similar voids): Structural
Fill. 7. Backfill under Supporting Walls and Columns and Similar 8. Locations: Class 4000 concrete. 8. Backfill Where Not Otherwise Indicated: Common Fill
or Common Embankment.
2.03 SOURCE QUALITY CONTROL
A. Fill backfill, and embankment materials proposed to be used in the work shall be tested in the laboratory for compliance with specified requirements as follows:,
1. Moisture-Density Relationship: ASTM D 1557, Method D. 2. Moisture Content: ASTM D 2216. 3. Relative Density: ASTM D 4253 and ASTM D 4254. 4. Liquid Limit: ASTM D 4318. 5. Plastic Limit and Plasticity Index: ASTM D 4318. 6. Dry Change (percent volumetric change): ASTM D 427. 7. Percentage of Wear: ASTM C 131 or ASTM C 535 as applicable. 8. Sieve Analysis: ASTM D 422, and ASTM C 136, as applicable. 9. Percent Passing No. 200 sieve: ASTM D 1140.
B. Where classification of soils is necessary to meet specified requirements, perform laboratory tests
in accordance with ASTM D 2487. 2.04 SOURCE OF MATERIALS
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A. To the extent that it is available, obtain material from excavation operations. If sufficient suitable materials are not available to meet embankment, fill and backfill requirements, obtain material meeting specified requirements from outside sources at no additional cost to SEPTA.
1. Earth excavation may contain excess moisture in its natural state or may take on excess
moisture during handling and stockpiling. Manipulation to dry material to proper moisture content prior to compaction may be necessary. Earth excavation will not be considered as unacceptable backfill material by virtue of its moisture content only.
B. Use only material whose quality, source, and zone of placement in the fill have been approved.
C. If borrow areas are provided by SEPTA, dress and shape such areas to ensure positive drainage
when borrow operations are completed. PART 3 EXECUTION 3.01 STAKING AND GRADES
A. Layout the work, establish all necessary markers, benchmarks, grading stakes, and other stakes as required.
B. Perform surveys in accordance with the requirements of Section 01050. Surveys shall include:
1. Initial survey of original ground. 2. Final surveys when excavations, backfills, and embankments are completed.
3.02 EXISTING UTILITIES
A. Verify on site the location and depth (elevation) of all existing utilities and services before performing any excavation work. Perform excavation within 3 feet of a utility line by hand.
B. Remove abandoned sewers, piping, and other utilities encountered during excavation and plug the
ends.
C. Report immediately to the Engineer any active utility lines encountered, which are not indicated in the Contract Documents, and notify utility owners involved. SEPTA, the Engineer and utility authorities shall be permitted free access to determine the measures deemed necessary to repair, relocate, or remove the utility.
3.03 EARTHWORK GENERAL REQUIREMENTS
A. Erosion Protection: Prevent erosion of the site at all times. Construct temporary berms and dikes and cut temporary swales to promote natural drainage of site.
B. Construction Traffic: Disperse travel paths of traffic and construction equipment over entire width of
compacted surfaces so as to aid in obtaining uniform compaction. Protect exposed soil layers with high moisture content from excessive wheel loads.
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C. On-Site Excavation or Borrow Pits: Do not excavate or remove any material from the project site or right-of-way which is not within the designated excavation, as indicated by the slope and grade lines.
D. Disposal of Excavated Material:
1. The contractor must properly dispose of any excavated material per PADEP Management of Fill Policy, SEPTA Soils Management Program, and Section 02400 – Soil Management.
2. Excavated soils disposal will be at a facility(ies) pre-approved by SEPTA. 3. The Contractor will be responsible to properly transport and dispose of the excavated
material in accordance with all Local, State, Federal laws and contract documents. 4. The contractor must submit copies of all manifests and/ or bills of laden to the project
manager for SEPTA records.
E. Maintenance of Excavations, Slopes, and Embankments:
1. Excavate and remove material outside the limits of excavation which is unstable and constitutes potential slides, and material which comes into excavations for any reason including from the driving of piles.
2. Maintain slopes and embankments until final completion and acceptance of the work. Promptly repair slides, slipouts, washouts, settlements, and subsidences which occur for any reason, and refinish the slope or embankment to the indicated lines and grades.
3.04 SUBSURFACE EXTRACTION
A. Remove subsurface facilities and obstructions to the extent indicated. B. When subsurface facilities are encountered during excavation which interferes with new
construction, and such facilities are not indicated, notify the Engineer promptly for corrective determination.
3.05 ROUGH GRADING AND FILLING
A. Prior to commencement of structural earthwork, perform such soil and rock removal and filling as may be required to facilitate the progress of the work and bring all elevations to the rough grading lines indicated on Contract Drawings. Grading shall be by blading or as herein specified under Article 3.06.
B. Fill or backfill wells, test pits, or holes which will not be completely removed by excavation, with
Class 4000 concrete, crushed stone, or clean select fill, and compact as herein specified in layers not exceeding 6 inches after compaction.
C. Fill or backfill holes, swales, and low points which will not otherwise be removed in the course of
the work, to the indicated grades
3.06 DEWATER
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A. Keep excavations free from water during the performance of the work. Provide and operate dewatering equipment of sufficient capacity for dewatering the excavations.
1. Provide for the disposal for the water removed from excavations in such manner as not to
cause injury to the public health, to public or private property, to the work of others, to the portion of the work completed or in progress, nor to cause an impediment to the use of streets, roads, and highways.
2. Control groundwater and surface water during construction in order to maintain soil stability.
3. Maintain the water table elevation sufficiently below the levels of excavation so that slops will remain stable and bottoms of excavations will not become loosened by flow of water.
4. If the foundations material looses its strength due to improper dewatering techniques, over-excavate the material and replace it with Structural Fill at no increase in Contract Price.
5. Dewatering efforts are to be maintained until excavations are closed or when determined by SEPTA or the Engineer as no longer necessary.
3.07 EXCAVATION
A. General Excavation Requirements:
1. Perform excavating as indicated and required for concrete footings, foundations, exterior paving, floor slabs, concrete walks, and for site levels and grading, and provide shoring, bracing, underpinning, cribbing, pumping, and planking as required.
2. The bottoms of excavations shall be level, firm, undisturbed earth, clean and free from loose material, debris, and foreign matter.
3. Excavate to the lines and grades indicated on the Contract Drawings. 4. Support and maintain excavations so that sides are stable and will not move. Excavations
may be maintained by sloping cut faces where space permits, or by providing structural support of earth walls.
5. Where the sides of excavations are sloped, angle of slopes shall be as approved by the Engineer but shall not be steeper than allowed by the Title 29 Code of Federal Regulations, Part 1926, Safety and Health Regulations for Construction (OSHA).
6. Maintain sides and slopes of excavations in safe condition until backfilling is completed. 7. Where the Contractor elects to slope the sides of excavations, backfill of the over-
excavated areas shall be made in the same manner specified for the adjacent excavated area. All additional backfill required shall be at no additional cost to SEPTA.
8. Limits of excavations shall allow for adequate working space for installing forms, wall waterproofing, and as required for safety of personnel. Cut excavations in solid rock accurately to the neat lines indicated on Contract Drawings, or to the width of the duct bank or concrete encasement.
9. Remove unstable bottom material. Remove large stones, debris, and incompressible soils from common excavation bottoms to a minimum depth of 12 inches. Where required to excavate to rock, it shall be understood to mean sound bedrock. Remove friable and unsound material.
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10. Except as otherwise indicated, preserve the material below and beyond the lines of excavations. Where excavation is carried below the indicated grade, backfill to the indicated grade as herein specified.
11. Excavation and its restoration, for convenience of the Contractor, shall be at no additional expense to SEPTA.
12. Place excavated material at sufficient distance from edge of excavation so as not to cause cave-ins or bank slides, but in no case closer than 3 feet from the edge of excavations.
13. Unauthorized over excavations for footings and foundations shall be filled with approved materials to indicated elevations.
14. Condition excavated earth material which is suitable for fill, backfill, or embankment for re-use and properly stockpile for later filling and backfilling operations as herein specified. Test, screen, and mix as necessary to meet specified requirements.
15. Proceed with caution in areas of utility facilities; expose them by hand excavation or other methods acceptable to the facility owner.
16. If unsuitable materials are encountered at the required subgrades, the Engineer may authorize the removal of such unsuitable materials and replacement with suitable compacted fill or with concrete.
B. Rock Excavation:
1. Rock which cannot be broken up and removed by ripper equipment shall be excavated and removed by drilling.
2. If the depth of the cut is more than can be drilled from the top, an 18 inch offset will be allowed in the slope to begin succeeding drilling operations. The end result shall be a relatively smooth shear plane with localized irregularities which do not exceed 2 feet behind or 1 foot in front of the shear plane surface and which do not extend within the neat lines of the excavation.
3. Where footings or foundations are to be placed on rock which is not horizontal, key the center of the foundation approximately 12 inches in depth throughout an area approximately equal to the dimensions of the column or footing to be placed on the rock, or the entire width of the slab, at not more than 10-foot intervals. Remove loose fragments, and clean and fill all seams with lean concrete.
4. Material excavated beyond or below the indicated cross section shall be at the Contractor's expense. Fill overbreakage to required invert with Class 4000 concrete or crushed stone as approved, at no additional expense to SEPTA.
5. Leave the side slopes of rock cuts with reasonably uniform faces whether the excavation is carried beyond the specified side slopes or not. Conform sloped surfaces to the typical section indicated or to natural cleavage planes, where these are compatible with the typical section.
6. Solid rock boulders 24 inches in greatest dimension and boulders of lesser dimension, broken rock, and all stones occurring within the construction limits and not required for other construction, may be used for rock fill if suitable.
3.08 EMBANKMENT CONSTRUCTION
A. Place initial layer of embankment, fill, and backfill only on subgrade which has been inspected and accepted by the Engineer.
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B. Construct embankments to lines, grades, and contours indicated, in layers as nearly uniform and
horizontal as is consistent with the indicated finished contour and profile. Maximum thickness of the layers shall conform to the following requirements:
1. Common Embankment and Structural Embankment: 8 inches before compaction and 6
inches after specified compaction. 2. Rock Fill: At more than 6 feet below the finished surface indicated on Contract Drawings,
limit thickness of rock layers to maximum diameter of rocks placed therein, but in no case more than 24 inches. At 6 feet or less below the finished surface, limit thickness of rock layers to 8 inches. C. Compact each layer to specified density for entire width of the fill or embankment. Achieve required compaction by rolling with compaction equipment suitable for type and condition of the particular material. Roll in a longitudinal direction parallel to longest dimension, starting at outer edges and progressing toward the center. Fill voids in rock fill with suitable embankment fill material.
C. Moisture-condition embankment fill material as required to achieve its compaction to the specified
density, within the tolerances specified herein. D. Do not compact material which contains excessive moisture. In such cases, scarify to the full depth
of the layer having excessive moisture content and dry by reworking, mixing with dry materials, or other approved methods.
E. Remove material which cannot be compacted to required density within specified tolerances, and
replace with suitable material at no additional expense to SEPTA.
F. Where pipes, culverts, or structures extend into embankments, construct embankment to at least 2 feet over and 10 feet on either side of the pipe, culvert, or structure location prior to excavation.
G. Do not commence final shaping until above specified requirements have been completed. Shape
entire surface and the slopes of cuts and embankments to true grade, alignment, and cross section indicated. Leave cut slopes in rock with uniform surface, and remove all loose overhanging rock. Open ditches, drains, and culverts resulting from construction operations to drain effectively.
H. Where utility facilities and structures are supported in place, use special equipment and techniques
as required to achieve specified compaction under and around them. I. When backfilling against structures, place material approximately simultaneously on both sides of
structures to equalize opposing horizontal pressures.
1. Compact embankment, fill or backfill materials within five feet of retaining walls, abutments or other structures using lightweight compactors.
2. Backfilling against new structures without approval is prohibited. J. When backfilling on tops of structures, place material in six inch lifts over full area.
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K. Prior to placing embankment against slopes greater than one vertical to four horizontal cut benches into existing slopes. Height of bench not to exceed two feet unless otherwise approved.
3.09 SUBGRADE PREPARATION
A. Perform all cutting, blading, and shaping as required to cut and shape the subgrade to the grades and elevations indicated.
B. Subgrade preparation includes fine grading, reworking as necessary, and preparation of cut, fill, or
embankment upon which structure and equipment foundations, pipe, subballast, subbase, base, and pavement will be placed.
C. Remove rigid pavements, slabs, and foundations which would be within five feet of finished grade
and subgrade. Rigid pavements and slabs which will be five feet and more below finished grade and subgrade may be left in-place only if broken into pieces not larger than three feet in greatest dimension.
D. Scarify and mix entire surface of subgrade to a depth of at least 6 inches. Moisture-condition
scarified subgrade to 3 percent above optimum moisture content. If subgrade stabilization material is required, incorporate it into subgrade at this time.
E. After the material has been thoroughly mixed and moisture conditioned, accurately construct and
fine grade the subgrade to indicated line, grade, and contour with high and low spots eliminated. Compact for full width to the specified density. Remove soft spots developed during working, fill with approved material, and re-compact.
F. Where feasible, use pneumatic-tired roller for compaction, suitable to produce the specified
density. Where compaction by roller is not feasible, use mechanical tampers or vibratory compactors.
G. Finish subgrade to straightedge or template within specified tolerances with the finished surface
bladed to a uniform, dense, smooth texture. 3.10 FOUNDATION PREPARATION
A. Complete construction of the excavation support and dewatering systems prior to placement of
structure and equipment foundations. B. Avoid disturbing bottom of excavation. If bottom is disturbed, restore and stabilize the bearing
foundation at no additional expense to SEPTA. C. If material at bottom of the excavation is rock, remove loose material and roughly level the bearing
foundation to indicated elevation. If the bottom contains occasional rock outcroppings or rock in only a portion of the area, remove such rock to a depth of 6 inches below indicated subgrade and backfill with approved material.
3.11 SUBGRADE FILLING/RAISING GRADE
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A. Construct compacted fill for raising of subgrade to indicated elevation by approved and accepted
methods. Spread fill material in uniform lifts not exceeding 8 inches in uncompacted thickness. Fill material which does not contain sufficient moisture to compact properly shall be sprinkled with water; if it contains excess moisture it shall be aerated or permitted to dry to the proper water content. Fill material and water shall then be thoroughly mixed before being compacted. Compact each layer of spread fill material to the specified density.
B. Control of fill shall consist of field inspection and testing to determine that each layer has been
compacted to the required density and to ensure that optimum moisture is being obtained. Any layer or portion of a layer that does not attain the compaction required shall be scarified and recompacted until the required compaction is obtained.
C. Perform spreading and compacting as required to produce the required density and a uniform
surface smooth and true to grade. 3.12 COMPACTION
A. Compaction Density: Compact each layer of embankment, fill, and backfill material to not less
than the indicated or specified compaction. Required compactions are defined as Class I or Class II, as follows:
1. Class I Compaction: 95 percent relative compaction as determined by ASTM D 698,
Method D, if the material is cohesive; or 70 percent relative density as determined by ASTM D 4253, Dry Method, and ASTM D 4254, Method A, if the material is granular.
2. Class II Compaction: 100 percent relative compaction as determined by ASTM D 698, Method D, if the material is cohesive; or 75 percent relative density as determined by ASTM D 4253, Dry Method, and ASTM D 4254, Method A, if the material is granular.
B. Required Compactions:
1. Embankment or fill where the surface will be subgrade or bearing foundation: Class II for
full depth. 2. Backfill around Structures: Class I under top 12 inches; Class II for top 12 inches. 3. Cut and Cover Backfill: Class I to 36 inches above structure or utility; Class II for balance. 4. Original Ground or Cut Subgrade: Except as specified in Articles 3.09 and 3.10 where
original ground or cut subgrade, or fill less than 1 foot thick, will be subgrade or bearing foundation, scarify the surfaces and provide Class II compaction for at least 12 inches in depth. Include the following additional requirements:
a. Provide Class II compaction for original ground within 3-1/2 feet of top of rail profile and 2-1/2 feet of finished pavement grade, for full width of trackway and pavement plus three feet on each side thereof.
b. Provide Class II compaction for top 6 inches of undisturbed original ground upon which embankments are to be constructed.
3.13 BACKFILLING
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A. Backfilling is required around all substructures. Fill all abandoned vaults, shafts, airways, holes, pits, and other voids.
B. Place backfill in layers not to exceed 8 inches of loose material, and compact each layer to
specified density before the next layer is placed. C. Place backfill material in such manner that unbalanced horizontal loads will not be applied to a
newly-placed structure or portion of structure, utilities, or pipelines. Do not backfill around portions of structures requiring backfill on only one side or on less than all sides, until the concrete has reached the specified strength to withstand the earth pressures.
D. When placing material for backfill around waterproofed structures, protect such structures and the
waterproofing thereof with a shield when necessary to prevent displacement or injury by stones or other hard substances in the backfill.
E. Do not backfill on or against structural concrete until the specified 28-day concrete strength has
been attained. F. Do not use compaction equipment and methods that produce excessive horizontal or vertical
earth pressures. 3.14 FINISH GRADING
A. Finish grade all areas to elevations and grades indicated. In areas to receive topsoil and landscape planting, finish grading shall be performed to a uniform 6 inches below the grades and elevations indicated.
B. Place and spread stockpiled topsoil to a uniform thickness of 4 to 5 inches (approximately) in
areas to receive topsoil and landscape planting. Place and spread to a uniform thickness approximately 1 to 2 inches below finish grades indicated.
3.15 FIELD QUALITY CONTROL
A. Inspections and Tests by the Contractor:
1. Density Tests: Compacted fill, backfill, and embankment shall be tested to verify
compliance with specified requirements in accordance with ASTM D 2922. Minimum frequency of tests shall conform to the following requirements:
a. Expansive Horizontal Areas: One test per 100 cubic yards, or fraction thereof, of fill or backfill placed.
b. Confined Areas, Trenches, and Embankments: One test per lift of fill, backfill, or embankment placed.
2. Tests for compaction shall be made in accordance with test procedures outlined in ASTM D 698, Method D, as applicable. Field testing of soils or compacted fill in place shall be performed in accordance with applicable requirements of ASTM D 2922.
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3. Moisture Content Tests: Compacted fill, backfill, and embankment shall be tested to verify compliance with specified requirements in accordance with ASTM D 3017. Minimum frequency of tests shall be as specified above for density tests.
B. Inspections by the Engineer:
1. Site preparation, cutting and shaping, excavating, filling, backfilling, and embankment
construction shall be carried out under the inspection of the Engineer, who will have the Contractor perform appropriate field and laboratory tests, as necessary, to evaluate the suitability of fill and backfill material, the proper moisture content for compaction, and the degree of compaction achieved. Fill or backfill that does not meet the specified requirements shall be removed or recompacted until the requirements are satisfied.
2. Cutting and shaping, excavating, conditioning, filling, backfilling, and compacting procedures require approval of the Engineer as they are successively performed. Work found to be unsatisfactory or work disturbed by subsequent operations before approval is granted shall be corrected in an approved manner as directed by the Engineer.
END OF SECTION 02300
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BITUMINOUS CONCRETE PAVING 02520-1
SECTION 02520
BITUMINOUS CONCRETE PAVING
PART1 GENERAL 1.01 SUMMARY
A. Section Includes: The work specified in this Section consists of the bituminous concrete paving and
repaving operations for the areas above the underground infiltration basins and for new paving due to the utility tie in.
B. Related Sections:
1. Section 02300: Excavation, Backfill, and Compaction.
1.02 REFERENCES
A. Pennsylvania Department of Transportation (PENN DOT) References: The PENNDOT Sections noted herein refer to sections contained in the Commonwealth of Pennsylvania Department of Transportation Specifications Publication 408, as supplemented. The payment provisions do not apply to work to be performed under this Specifications Section.
B. Commonwealth of Pennsylvania Department of Transportation Bulletin 25 and Bulletin 27. C. American Society for Testing and Materials (ASTM):
1. ASTM D 1557, Test Method for Moisture-Density Relations of Soils and Soil-Aggregate
Mixtures, Using ten pound (4.5- kg) Rammer and 18-inch (457-mm) Drop. 2. ASTM D 2167, Test Method for Density of Soil in Place by the Rubber-Balloon Method.
D. American Association of State Highway and Transportation Officials: AASHTO T 180, Moisture-
Density Relations of Soils using a ten pound Rammer and an 18-inch Drop.
1.03 DEFINITIONS A. Street: Unless otherwise specifically qualified herein, the term Street as used in this Section is
understood to mean a street, highway, avenue, boulevard, road, alley, lane, driveway, parking lot, or any other area used as a way for vehicles.
1.04 QUALITY ASSURANCE
A. Source Quality Control: Maintain the quality of work by using the products of a qualified bituminous concrete producer and qualified plant operating workmen.
AUGUST 2017 WYNNEFIELD STATION RECONSTRUCTION ADDENDUM 1
BITUMINOUS CONCRETE PAVING 02520-2
1. Use products of a bituminous concrete bulk producer regularly engaged in production of hot-mix, hot-laid bituminous concrete conforming to the standards referenced herein.
2. Use materials conforming to the requirements of the Commonwealth of Pennsylvania Department of Transportation Specifications Publication 408, as supplemented.
B. Workmen Qualifications: Provide at least one person thoroughly trained and experienced in the
skills required and who readily understands the design and is completely familiar with the application of bituminous concrete paving work. During progress of bituminous concrete paving work the trained person shall be present to direct the performance of work.
1. For actual finishing of bituminous concrete surfaces and operation of the equipment, use
only personnel thoroughly trained and experienced in the skills required. 1.05 PROJECT CONDITIONS
A. Environmental Requirements: 1. Dust Control: Provide effective dust control by sprinkling water, by the use of calcium
chloride, or by other methods as approved by the Engineer. Use dust control measures where and when, and in a manner as required by the Engineer.
2. Temperature Limitations: Terminate placement of bituminous concrete surface courses of permanent pavement after October thirty-first, and do not resume placement prior to April first; interim days between date limits may be used for placement as determined by the Engineer depending upon weather temperature conditions.
a) Do not install aggregate courses when ambient temperature is below or is expected to fall below freezing.
b) Do not use aggregate containing frost nor place aggregate courses on frozen subgrade.
c) Do not place bituminous concrete surface courses of permanent pavement when the ambient temperature is 40 degrees F. or lower; nor when the temperature of the pavement, base or binder on which it is to be placed is 40 degrees F. or lower.
3. Paint Application Limitations: Adhere to manufacturer's data on air and surface temperature limits and relative humidity during application and curing of coatings.
a) Do not spray apply paint when wind velocity is above 15 mph. b) Schedule painting work to avoid dust and airborne contaminants. c) Apply paint during daylight hours only.
PART 2 PRODUCTS 2.01 BASE COURSE MATERIALS
A. Subbase: Composed of Coarse Aggregate Type C (or better) stone conforming to PENNDOT Section 703.2, No. 2A aggregate.
B. Bituminous Concrete Base Course: Conforming to PENNDOT Section 305 and Section 403 for RAP requirements.
AUGUST 2017 WYNNEFIELD STATION RECONSTRUCTION ADDENDUM 1
BITUMINOUS CONCRETE PAVING 02520-3
C. Bituminous Material: Use one of the following conforming to PENNDOT Section 702 and Bulletin
25.
1. Asphalt Cement: Class AC-20. 2.02 SURFACE COURSE MATERIALS
A. Bituminous Materials:
1. Asphalt Cement: AC-20 conforming to PENNDOT Bulletin 25. 2. Bituminous Tack Coat: Class E-1, E-6, or E-8 emulsified asphalt conforming to PENNDOT
Bulletin 25.
B. Bituminous Pavement Materials: 1. Superpave Wearing Course: Hot mixed, hot laid, Bituminous Superpave Wearing Course:
Conforming to PENNDOT Section 409 of Pennsylvania Department of Transportation Publication 408, as amended.
a. 9.5 mm Graded Aggregate b. PG 64-22 Asphalt Cement c. 3 to 30 Million ESALs d. Skid Resistance Level H (SRL H)
2. Superpave Binder Course: Hot mixed, hot laid, Bituminous Superpave Binder Course: Conforming to PENNDOT Section 409 of Pennsylvania Department of Transportation Publication 408, as amended.
a. 25 mm Graded Aggregate b. PG 64-22 Asphalt Cement c. 3 to 30 Million ESALs
2.03 MISCELLANEOUS MATERIALS
A. Traffic Zone Paint: PENNDOT Section 704 1. Yellow Traffic Zone Paint: Low-heat, rapid-dry formulation for center lines; reflective. 2. White Traffic Zone Paint: Low-heat, rapid-dry formulation for edge lines and stop bars;
reflective. 3. Paint Quality: Paint material composition shall conform to AASHTO Type F paint
formulation and AASHTO M-247, Type (standard gradation) for reflective media (glass beads).
2.04 PAVEMENT MIXES
A. Composition of Mixtures: Binder and wearing course mixture composition shall conform to the
requirements of PENNDOT Section 401.
AUGUST 2017 WYNNEFIELD STATION RECONSTRUCTION ADDENDUM 1
BITUMINOUS CONCRETE PAVING 02520-4
1. Establish a job-mix formula prior to beginning work which shall not be changed during the progress of work without the Engineer's approval. Job-mixing tolerances shall not be presumed to permit acceptance of materials whose gradations fall outside the master ranges set in the specified PENNDOT Sections.
2. The approved job-mix formula shall lie within the specification limits and be suitable for the layer thickness and other conditions prevailing. It shall not be changed after work has started without the approval of the Engineer.
PART 3 - EXECUTION 3.01 PREPARATION
A. Subgrade Preparation: Just prior to subbase installation, as specified in Section 02231, perform
grading and finish rolling.
1. Perform subgrade preparation only after site grading, trenching, etc., have been completed and accepted by the Engineer.
2. The moisture content of the subgrade material at the time of compaction shall not exceed two percentage points above the optimum moisture content.
B. General Requirements for Pavement Removal: Cut existing pavement to neat lines with a
mechanical saw.
1. At joints between existing pavements and new paving work, cut and neatly trim the edges of existing pavements in a manner subject to the Engineer's approval. Provide an application of Class AC-20 petroleum asphalt at the locations where new bituminous paving joins existing bituminous paving.
3.02 PERMANENT PAVING INSTALLATION
A. General Requirements: Methods of preparing paving mixture, placing paving mixture, compaction, and protection of in-place bituminous concrete pavement shall comply with PENNDOT Sections 305.3 and 401.3. The specified thicknesses are the compacted thicknesses.
1. Location of types and thicknesses of pavements are delineated on Drawings. 2. Install surface course of replacement pavement with top surface flush with surface of
adjacent pavement.
B. Binder Course Installation:
1. Superpave Bituminous Concrete Binder Course: Construct in accordance with the requirements of PENNDOT Section 409 of Pennsylvania Department of Transportation Publication 408, as ammended.
C. Wearing Course Installation:
AUGUST 2017 WYNNEFIELD STATION RECONSTRUCTION ADDENDUM 1
BITUMINOUS CONCRETE PAVING 02520-5
1. Superpave Bituminous Concrete Wearing Course: Construct in accordance with the requirements of PENNDOT Section 409 of Pennsylvania Department of Transportation Publication 408, as ammended.
a. Use Bituminous Tack Coat material to seal joints in wearing courses as specified
in PENNDOT Section 401.3 Q) 3. 3.03 PAVEMENT MARKING
A. Paint Application: Strictly follow paint manufacturer's label instructions for mixing, thinning, proper spreading rate, and drying time. In no case shall film thickness be less than manufacturer's recommendations nor shall area coverage per gallon exceed manufacturer's recommendations.
1. Preparation: Prior to pavement marking, clean pavement surface free of contaminants that
will prohibit paint adhesion. 2. Thinning: If material has thickened or must be diluted for application, the coating shall be
built up to the same film thickness achieved with undiluted material. Do not use thinner to extend coverage of the paint.
3. Coverage Rate: Regardless of the surface condition, apply paint to achieve a suitable finish either by decreasing the coverage rate or by applying additional coats of paint.
4. Provide temporary satisfactory barriers for at least 30 minutes, or until the paint is dry and track free from vehicular traffic. Repaint marked or damaged areas.
B. Parking Area Traffic Lines and Markings: Striping shall consist of white four-inch wide painted lines of length and spacing indicated on the Drawings. Paint lines accurately with sharp, clearly defined edges. Paint solid colored areas free of skips and holidays. Make line work straight and uniformly spaced.
C. Roadway Traffic Lines and Markings: Construct in accordance with the requirements of PENNDOT Publication 111 M.
3.04 MAINTENANCE
A. Continuously maintain temporary pavement without additional compensation until it is replaced with permanent pavement.
B. Without an increase in Contract Price, maintain the work done under this Section for a period as
stated in the Agreement after the date of SEPTA's approval of the Substantial Completion Certificate issued by the Engineer. Maintenance shall include the repair or removal and replacement of such work which has failed, or wherever surface depressions have developed. Materials and methods used to repair or replace such work shall conform to the applicable requirements of this Section.
C. Should the Contractor fail to perform required maintenance or repairs within three days after
receiving written notice from SEPTA or the Engineer, SEPTA may perform such maintenance or repairs and deduct the cost thereof from monies due or to become due the Contractor.
END OF SECTION 02520
DRAWING NUMBER
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MANAGER - CIVIL ENGINEERING - EM&C
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REINFORCING TABLE
Ø CMP
RISER
A Ø B REINFORCING
12"
Ø 2'
2'X2'
14"
#5 @ 12" OCEW
#5 @ 12" OCEW
30"
Ø 4'-6"
4'-6" X 4'-6"
32"
#5 @ 12" OCEW
#5 @ 12" OCEW
NOTES
· THIS PORT IS USED TO PUMP WATER INTO THE SYSTEM
AND RE-SUSPEND ACCUMULATED SEDIMENT SO THAT IT
MAY BE PUMPED OUT.
· MINIMUM REQUIRED MAINTENANCE INCLUDES A
QUARTERLY INSPECTION DURING THE FIRST YEAR OF
OPERATION AND A YEARLY INSPECTION THEREAFTER.
FLUSH AS NEEDED.
· ONLY R-TANKᴴᴰ AND R-TANK
SD
MAY BE USED IN TRAFFIC
APPLICATIONS.
16.25" FRAME AND
COVER
PAVED SURFACE
BACKFILL COMPACTED TO
95% STANDARD PROCTOR
DENSITY
B
GEOGRID
A
NON-CORROSIVE HOSE CLAMP
GEOTEXTILE
NOTCH BOTTOM
OF PIPE
SEE PATTERN
NON-CORROSIVE
SOLID PLATE
PLASTIC, SLATE
OR EQUIVALENT
1" +/- VENTING PERFORATIONS
PIPE NOTCHING
PATTERN
8" NOTCHES CUT IN SHADED
AREAS (8 OPENINGS TOTAL)
1.5"
3.5"
R-TANK
(REGULAR SHOWN)
DEPTH SUMMARY
TYPE A B
R-TANK 12" MIN - 36" MAX
AS SHOWN
ON PLANS
R-TANKᴴᴰ 20" MIN - 6.99' MAX 12"
R-TANK
SD
18" MIN - 9.99' MAX 12"
12" DIA. PVC
MAINTENANCE
PORT
REINFORCED
CONCRETE COLLAR
SEE 3/C503
15.75"
28.15" 15.75"
17.32"
28.15"
17.32"
FRONT VIEW
5.0'
PIPE
O.D.
PIPE
5.0
'
SIDE VIEW
PIP
E
O.D
.
2'-0"
FABRIC COLLAR TO FIT OUTSIDE DIAMETER OF
INLET/OUTLET PIPE
NOTE: CUT FABRIC AND WRAP AROUND
PIPE SO THAT PIPE BUTS DIRECTLY
AGAINST ACF R-TANK PIPE EFFLUENT
SHALL NOT PASS THROUGH FABRIC
GEOTEXTILE FABRIC
OVER ACF R-TANK
SECTION
STAINLESS STEEL
BANDS
STAINLESS
STEEL BANDS
™
™
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PENNSYLVANIA ONE CALL SYSTEM INC.
15122-1078
West Mifflin, Pennsylvania
925 Irwin Run Road
DRILL, BLAST OR DEMOLISH
NOTICE TO UTILITIES BEFORE YOU EXCAVATE
PA LAW REQUIRES THREE WORKING DAYS
NON-MEMBERS MUST BE CONTACTED DIRECTLY
PENNSYLVANIA! CALL 1-800-242-1776
BEFORE YOU DIG ANYWHERE IN
1
-
8
0
0
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2
4
2
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7
7
6
NORTH
P
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GAS GAS
W
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LOD LOD
Page 1 of 5
Bidder Questions Addendum #1
1. Is the proposed ADA ramp and stairs part of this bid package, as soon on drawing C400. If so
please provide structural drawings
The ADA ramp and stairs ARE NOT included in this contract.
2. On sheet C200 there is reference to work for sidewalks, stairs, platforms and handicap ramp.
Also on drawings C400 and C401 there is reference to an access gate and note to see
architectural drawings. There are no architectural drawings in the package. Please advise if this
package has all the work noted on C200 or if there is another package forth coming to clarify the
scope of work for this package.
Sidewalks, stairs, platforms, handicap ramp and access gate ARE NOT included in this contract.
All work for this contract is shown in the Civil drawings provided.
3. What is the anticipated Notice to Proceed date?
Anticipated NTP is November 2017.
4. Please consider adding a bid item for General Conditions/Traffic Control.
General Conditions/Traffic Control WILL NOT be added as a bid item. All costs for General
Conditions/Traffic Control should be included within the bid item it is associated with.
5. Please confirm that there are no minimum DBE goals required to be met.
Correct there are no DBE goals for this project.
6. Has PWD approval been obtained?
PWD approval is being finalized pending the execution of the O&M Agreement. The Contractor
is required to obtain any construction permits required.
7. Has the NPDES permit been obtained?
An NPDES permit is not required for this project.
8. Is a PADOT HOP Permit required and if so, will SEPTA obtain it?
A PennDOT HOP permit is not required for this project.
Page 2 of 5
9. Is there an expectation to maintain public parking for the station during the work?
The parking lot will be closed during construction.
10. Are there any work hour restrictions on this project?
SEPTA does not have any work hour restrictions for this project. This does not exempt the
contractor from all local construction regulations.
11. Are we required to provide SEPTA with a temporary facility or any support equipment?
The Contractor will NOT provide SEPTA with any temporary facility or support equipment.
12. Is there any specific work that we need to do to support the work being performed by SEPTA?
There is no specific work to be performed by the Contractor which will support the work of
SEPTA.
13. Is the 220 CD’s for the entire project or just the work covered in ¶1.01.A of 01011-1? If for the
entire project, what durations/timeline should we assume for the work to be performed by
SEPTA and in particular prior to and after each of the 2 phases that the contractor is required to
perform its work in?
220 CD’s is for the entire project, including work to be performed by SEPTA. The Contractor will
complete all construction work included in this contract for phases 1 and 2, excluding
landscaping, BEFORE SEPTA mobilizes on site to complete all remaining construction. SEPTA will
require 120 days to complete remaining construction before landscaping can be installed by
Contractor.
14. Section 01010-6, ¶1.10.A.2 says with respect to the “building adjacent to the West side of the
SEPTA lot” that “The contractor shall provide a professional engineer qualified to inspect the
structure and walls of the buildings to remain.” Please advise why this is required as we are not
performing any work near this existing structure.
The Contractor IS NOT required to inspect the adjacent building. Section 1.10.A.2 removed from
Specification.
Page 3 of 5
15. ¶1.01.A.2.a of Section 01011-1 with respect to the scopes of work has the contractor
performing the E&S work for the entire project. Since SEPTA forces will be performing all site
demolition, excavation (except for the drainage and basin work), grading work, concrete, and
asphalt paving, please advise what we should assume for bidding purposes for the maintenance
and/or replacement of E&S devices, temporary construction fences, and for temporary seeding
(reference also ¶3.2.A of Section 02370-7).
The Contractor is responsible for maintenance of the E&S controls for the full duration of the
project, including work performed by SEPTA; assume 220 days for biding purposes.
16. ¶1.05.D of Section 01011-3 with respect to what the General Construction Contract includes
conflicts with ¶1.01.A and B of Section 01011-1 wherein the responsibilities of each contract is
tabulated. Please advise.
All C-Series Drawings are to be used to complete work described in 1.01.A of Section 01011-1.
17. Have any field test pits been performed during the design to insure that P-5 will clear all existing
underground utilities in Wynnefield Avenue?
No field test pits have been performed. P-5 will clear all existing utilities identified by the
PA1Call System.
18. Please confirm that Section 01710, Final Cleaning, only pertains to the work being performed
under the GC Prime Contract and does not apply to the work being performed by SEPTA.
Section 01710, Final Cleaning, only pertains to the work being performed under this Contract
and does not apply to the work being performed by SEPTA.
19. Please confirm that Section 01720, Project As-Built Documents, only pertains to the work being
performed under the GC Prime Contract and does not apply to the work being performed by
SEPTA other than the final survey required by 1.01.A.2.c of Section 01011-1.
Section 01720, Project As-Built Documents, only pertains to the work being performed under
this Contract and does not apply to the work being performed by SEPTA other than the final
survey required by 1.01.A.2.d of Section 01011-1.
20. Section 02300-9, ¶3.03.D.2, says “During the bidding process the Contractor shall submit, for
SEPTA’s review and approval, the anticipated name and location where the contractor plans to
dispose of the excavated soil”. How is this to be submitted prior to the bid?
The disposal facility for the excavated soil shall be approved AFTER the Contract has been
awarded. Section 02300 updated.
Page 4 of 5
21. With respect to Soils Management section 02400, is it the intent that all spoils generated by the
work be sent to a facility such as Clean Earth and/or Grows Landfill?
All excavated soils that cannot be reused on site must be disposed of at a facility(ies) meeting all
requirements of Specification Section 2400 – Soils Management.
22. Is the excavated in situ material permitted to be reused as suitable embankment backfill where
needed or must it be direct loaded for offsite transportation and disposal per Section 02400?
Excavated soil may be used as embankment fill on site per Contract Documents.
23. Section 02722-4, ¶2.2.F.2.d, says that for the base of excavation of the infiltration basins that “A
minimum 2,000 pounds per square foot bearing capacity is required”. Who makes this
determination?
SEPTA has determined that the bearing capacity on site exceeds the 2,000 pound per square
foot minimum required.
24. The E&S drawings show a concrete washout detail to be constructed by the contractor. Is the
contractor required to maintain and clean this out for SEPTA’s cast-in-place concrete work? If
so, please provide the number of times and approximate volume of concrete that we should
anticipate to be cleaned.
Contractor is required to construct a concrete washout for work performed by the Contractor
only. SEPTA will install an additional concrete washout for all SEPTA concrete work.
25. Who installs, maintains, and removes the Rock Construction Entrance?
This Contract includes the installation, maintenance and removal of the Rock Construction
Entrance.
26. For the drainage and basin construction is it the intent that we install the roadway subbase over
this work or just backfill to the bottom of the subbase?
Contractor to backfill and install temporary full depth asphalt paving to finished grade within the
infiltration basin footprint immediately following the infiltration basin installation; see detail
9/C600.
27. The Phase 3 work tabulated on E&S drawing C200 appears to be work performed solely by
SEPTA. Please confirm that there is no work required to be performed by the contractor in
Phase 3.
The Contractor IS NOT required to complete any construction in Phase 3.
Page 5 of 5
28. On drawing C200 under “Underground Infiltration Basin Sequence”, please advise:
a. What constitutes “heavy equipment” in note #4 and “excessive construction
equipment” in note #5?
This is a standard PWD note required for installation of all underground infiltration
basins in Philadelphia. ‘Heavy equipment’ and ‘excessive construction equipment’ is any
equipment that will compact the existing soils which include but is not limited to
equipment with narrow tracks or tires, rubber tires with large lugs, or high pressure
tires.
b. Who is required to provide the “Registered Engineer” for the notes ending with an (*)
asterisk?
SEPTA will provide the “Registered Engineer” for the notes ending with an (*) asterisk
29. Please confirm that none of the work, including the clearing and grubbing, shown on demolition
plan C301 is to be performed by the contractor.
Contractor to complete demolition, and clearing and grubbing for ALL WORK associated with
the Contract Documents. SEPTA is responsible for all other demolition, clearing and grubbing
not included in the Contract Documents. Section 01011 (1.01.A and 1.01.B) updated and Section
02230 – Site Preparation section added.
30. Who is responsible to furnish and install the permanent fence shown on drawings C400 and
C401?
The Contractor is NOT responsible for installing the permanent fence shown on drawings C400
and C401. Section 01011.1.01.B updated.
31. Please clarify the limits and depth of the topsoil shown in Detail 2 on drawing C800.
6” of topsoil to be installed, per Specification Section 02941, for all areas that require
landscaping. C800 updated.
32. For the landscape work shown on drawing C800 to be performed by the contractor, please
advise who is to perform the ground prep & finished grading prior to the installation of the 3” of
topsoil and 3” of mulch?
SEPTA to rough grade the landscaped areas but Contractor to install all landscaping features,
including top soil, to finished grade.