addendum 3 february 12, 2015

ADDENDUM 3 February 12, 2015

South Jersey Transportation Authority Request for Bids

ATLANTIC CITY INTERNATIONAL AIRPORT (ACY)

GATE 4 PASSENGER BOARDING BRIDGE REPLACEMENT PROJECT

NOTICE

This Addendum is considered part of this Request for Bids, and must be acknowledged with your Bid Submission. The following pages contain:

A. FORMALLY SUBMITTED QUESTIONS AND SJTA’S RESPONSES B. REVISIONS TO PROPOSAL SECTION C. REVISIONS TO DRAWINGS D. ATTACHMENTS E. ACKNOWLEDGEMENT RECEIPT

A. FORMALLY SUBMITTED QUESTIONS AND SJTA’S RESPONSES

1Q. Specification Section 13371.2.02.J: Specification calls for MD-80 hose extension accessories. Section 2.02.J.3 calls for a Hose Management System, which would eliminate the need for MD-80 extension accessories. Please confirm if the Hose Management System or the MD 80 extension accessories are required for the Base Bid.

1A. MD 80 hose extension is not required.

2Q. Specification Section 13371.2.03.A.1: The specification requires a minimum of 200 RLA with a 225 AMP breaker. Please clarify that this is just a minimum requirement for electrical. The size unit we have selected for the specified aircraft requires a 250 AMP breaker and we want to make sure that the electric is available or will be upgraded appropriately.

2A A 250 amp breaker will be available.

3Q. Specification 16800: The listed aircraft mix list the largest aircraft as B737 and A321. The size of the 400Hz frequency converter is specified as 180kVA. The listed aircraft mix would only require 90kVA and 28.5VDC. If only 90kVA is required, then the 28.5 VDC could be included in the same unit as

the 90kVA. Can you please clarify largest aircraft to be serviced and sizing of the 400Hz frequency converter?

3A. 180 kVA is required per specifications – do not utilize pavement markings to size GSE.

4Q. Specification 16800: Paragraph 2.02.B.7 requires voltage balance to be 1% from average of three phases for balanced load and 3% of average of three phases for 30% unbalanced load. The Hobart 180SX200 is specified at 2% at balanced load and 3 volts for 10% unbalanced load. Considering that there has never been a performance problem with these listed specifications, can these parameters please be allowed?

4A. These parameters are acceptable. 5Q. Specification 16800: Paragraph 2.02.E requires faults to be displayed on a 2

line LCD display and a flashing yellow light to display EF in bypass. The Hobart 180SX200 displays fault codes on an LED display and has separate voltage and current LED displays that display each phase and average. The EF bypass is displayed via LED. Can this display method please be allowed?

5A. This display method is acceptable.

6Q. Specification 16800: Paragraph 2.02.E requires 490 events to be stored. The Hobart 180SX200 stores the last 200 events. Can this please be allowed?

6A. Storage of 200 events is acceptable. 7Q. Specification 16800: Paragraph 2.02.F requires an Automatic/Manual switch

for bypassing the voltage regulation and a bus voltage adjust. Since the Hobart 180SX200 utilizes self-diagnostic software, these features are not required. We request that these requirements be removed for converters with built in self-diagnostics.

7A. These requirements may be removed for converters with built in self-diagnostics.

8Q. Specification 16800: Paragraph 2.02.I.1 requires remote voltage sense. Since the specified cable does not have sensing leads and these leads are prone to failure if utilized, can converters without this feature please be allowed?

8A. Converters without this feature are acceptable.

9Q. Specification 16800: Paragraph 2.02.J.1.d asks for banded output cable with on/off and raise lower pushbuttons in the head. Banded cables do not have the necessary control wires included for the pushbuttons. Single jacket cable is normally specified when these controls are to be included. Is it your intent to have single jacket cables with pushbuttons?

9A. Single jacket cables are acceptable.

10Q. The last project involving Passenger Loading Bridge Relocations in 2005 was completed by my company, Shore Building Contractors. We obviously are qualified to bid this project, however we do not have a C008 classification. We currently have a C009 classification. Would it be possible for the SJTA to reconsider this requirement?

10A. The DPMC classification C009 – General Construction/Alterations and Additions is acceptable. See the revised DMPC form attached to this Addendum.

11Q. Section 13041-2 2.02 Telescoping Tunnels D. “The telescoping tunnels shall be equipped with an exterior, under the bridge mounted, electrical cable conveyance system”.

TKAS steel PBB’s are equipped with an exterior, side mounted electrical conveyance system. The design allows maintenance personnel access for inspections or cable additions at all bridge positions and operating conditions. Whereas under mount systems are challenging during cable additions and inspections, usually requiring the addition of a side mounted pantograph when new cabling is required.

Question: TKAS kindly requests the allowance of our proposed side mounted cable carrier system.

11A. In the context of the submitted information, it is acceptable, however, changes and substitutions shall still be submitted during construction for acceptance as part of the review of a complete system. See specification section GC-107 for substitutions.

12Q. Section 13041-2 2.01 Rotunda Assembly H. “The Contractor shall provide an

electrical disconnect panel and all internals, mounted on the rotunda support column, complete with electrical disconnects, transformers – if required, and circuit breakers, as required, to adapt and distribute the specified, customer-provided 3 phase supply power to the various PBB Electrical systems.

We understand and will comply with protecting all branch circuits with U.L. rated circuit breakers, but for circuits that are 10 amps @ 50vdc or less (not to exceed 250VA), this is not practical. For electronic components we need lower current rating and more reliable circuit protection found in some fuses. For protection of these circuits, we will supply fuses.

Question: TKAS kindly requests the use of fuses as required.


13Q. Section 13041-2 2.01Rotunda Assembly H. “The disconnect panel’s heavy duty, stainless steel enclosure shall be a NEMA 4X (IP65) rated enclosure.

Our stand design uses a UV-Stable, corrosion resistant, NEMA 3R, fiberglass construction that is halogen-free and self-extinguishing.

Question: We request exception to the requirement and for permission to use our standard enclosure.


14Q. Section 13041-13 2.13 Interior Finishes A. 1. “The ceiling shall be made of

plank type panels.

Our design includes Pre-painted (Gray White RAL-9002) galvannealed steel panels. These are 4’ wide and placed across the tunnels’ centerline with aluminum trim over the edges; allowing for a flat smooth finish that’s easier to clean and the placing of insulation over the entire ceiling.

Question. We kindly request you accept our galvannealed paneled ceiling design as an approved equal?


15Q. Section 13041-1 Part 2 - Products

2.01 Rotunda Assembly: “The operational swing limit shall be a potentiometer located in the rotunda ceiling and shall be accessible from inside”.

We use proximity switches for travel limits and mechanical-type NEMA switches for ultimate, over-travel limits. ThyssenKrupp’s standard does not require potentiometers and the bearings are located underneath the Rotunda and can be accessed at ground level if any maintenance is required.

Question: We request permission to use our standard switches.


16Q. Section 13041-2 2.02 Telescoping Tunnels A. “The tunnel walls shall be

constructed of 14 gauge steel corrugated plate.

ThyssenKrupp’s standard bridge tunnel design consists of the exterior side, roof and floor panels manufactured from 14 gauge galvannealed (galvannealed material provides additional corrosion protection superior to hot-rolled, coil steel, and galvanized) steel panels attached to a framework of angle and tubing. These panels are formed, welded, sealed and painted to form the steel enclosure. Strength is derived from the formed sheet metal ribs, while the flat, exterior walls provide a pleasing architectural appearance.

Question: TKAS kindly requests approval of our galvannealed steel panels attached a framework of angle and tubing.


17Q. Section 13041-13 2.13 Interior Finishes 7. “The sub floor in the cab and bubble shall be 19mm or ¾ inch marine plywood, which shall be highly resistant to moisture and moisture damage”.

Our standard floor is made of formed, galvannealed sheet metal panels. These are installed with a flat internal profile over the entire length of the bridge that allows a continuous surface for the adhesion of carpet. Also, the use of galvannealed material provides additional corrosion protection that is superior to the plywood subflooring.

Question: We request approval to use our standard bridge floor.


18Q. Section 13041-17 3.02 Structural Loads 2. “A wind load of: Retracted and

stowed – 25 lbs. per sq. ft. (122 kg per sq. M), or an approximate wind velocity of 98 mph (158km per hr.). An operational wind load of 12.5 lbs. per sq. ft. (61kg per sq. M) or an approximate wind velocity of 70 mph (113 km per hr.).

TKAS provides a retracted and stowed wind load of 25 lbs. per sq. ft. (120 kg per sq. M), or an approximate wind velocity of 90 mph (145 km per hr.). Our operational wind load is 12.5 lbs. per sq. ft. (61 kg per sq. M), or an approximate wind velocity of 60 mph (97 km per hr.).

Question: We kindly request approval of our standard structural wind loads.

18A. In the context of the submitted information, it is acceptable, however, changes

and substitutions shall still be submitted during construction for acceptance as part of the review of a complete system. See specification section GC-107 for substitutions.

19Q. Please see ThyssenKrupp Airport Systems standard paint specification which has been designed for our galvannealed steel panels:

(1). Paint – Interior and Exterior Surfaces:

(a). Prep: Combination method in accordance with SSPC guidelines, as applicable for each material. Includes commercial blast and power tool cleaning for carbon steel and solvent cleaning for galvannealed steel surfaces.

(b) Zinc Coat: apply zinc to all exterior surfaces - apply to an average dry film thickness of 1.5 mils

(c). Epoxy Prime: Solvent free, high-solids epoxy primer with semi-gloss, American Coatings Rustlock 8010 Series Epoxy (two components).

ƒ. Apply to an average dry film thickness of 3 mils (75 microns) for galvanized surfaces.

ƒ. Apply to an average dry film thickness of 6 mils (150 microns) for carbon steel surfaces.

(d). Finish: Topcoat roof only, flexible latex roof mastic color coat with satin gloss finish (30-50 on a 60° gloss meter). American Coatings WB Series Roof Mastic. Apply to an average dry film thickness of 10 mils (250 microns). Topcoat-all other surfaces, aliphatic polyurethane color coat with semi-gloss finish 60-65 on a 60° gloss meter). American Coatings SU Series, low voc (2.8), polyurethane. Apply to an average dry film thickness of 2 mils (50 microns).

(e). Color:

ƒ. Exterior: GRAY WHITE # RAL 9002 ƒ. Interior: GRAY WHITE # RAL 9002

Question: TKAS kindly requests allowance of our standard paint specification that contains a zinc primer coating for harsh conditions and has been used successfully on over 1000 Passenger Boarding bridges.


20Q. Question: Please provide the Warranty Period for the Passenger Boarding

Bridge, Preconditioned Air and Ground Power Units as this was not clearly stated in the project manual/specifications.

20A. The warranty period is one year standard upon operational use and approval sign off.

21Q. Specification 16800: 1.01B Approved Manufacturers – Change name from

Cavotech to Cavotec 21A. Cavotec is an approved Manufacturer.

22Q. Specification 16800: 2.02A.3 Our current at 180 kVA is 203 amps, not 200

amps as stated in the specification. Is this acceptable? 22A. 203 amps is acceptable.

23Q. Specification 16800: 2.02D Fault Systems – The faults listed are displayed by

LED lights. Is this acceptable in lieu of a 2-line text display? 23A. The LED light display is acceptable.

24Q. Specification 16800: 2.02F Switches and Controls – Spec calls for “Auto/manual switch – enable/disables output voltage regulation” We do not consider disabling output voltage regulation a safe feature. Is it acceptable if this is not supplied?

24A. It is acceptable to not have the Auto/manual switch that enables/disables output voltage regulation.

25Q. Specification 16800: 2.02F Switches and Controls – Spec calls for “Bus

voltage adjustment – sets DC bus voltage level” Our DC bus voltage level is a set value, is this acceptable?

25A. The set DC voltage level is acceptable. 26Q. Specification 16800: 2.02H.2 Cabinet Dimensions – Our cabinet dimensions

are 75” wide X 48” deep X 33” high. Are these dimensions acceptable? 26A. In the context of the submitted information, it is acceptable, however, changes

and substitutions shall still be submitted during construction for acceptance as part of the review of a complete system. See specification section GC-107 for substitutions.

27Q. Specification 16800: 2.02H.7 Acoustical Noise – Our unit emits no more than

78 dB, is this acceptable? 27A. This is acceptable. 28Q. Specification 16800: 2.02K 28.5VDC Gate Box – We can provide the

28.5VDC power for regional aircraft integral to our 180 kVA ground power unit. Is this acceptable?


29Q. Specification 13371: 1.01D Approved Manufacturers – Change name from

Cavotech to Cavotec 29A. Cavotec is an approved Manufacturer. 30Q. Specification 13371: 2.02F Table 1 – Aircraft size is shown as 767. Is the unit

to cool all models of the B767 series through the B767-400 which requires two PCA output hoses?

30A. Yes.

31Q. Will the airport allow the installation of the Bridge-Link Gate Monitoring system with unlimited licensing? In lieu of the single license Wonderware Intouch Software?

31A. The Bridge-Link Monitoring System is not being considered at this time. 32Q. Please provide the CAD Layout in DWG and the Gate 4 Sill Height. 32A. The Gate 4 sill height is 13’ above the apron. CAD drawings will not be provided

during bidding. 33Q. Please advise on the following insurance requirements for this project.

The following coverages state “If Designated by Contractor’s Scope of Work”. Are any of these coverages required:

- Professional Liability - Pollution Liability - Watercraft/Aircraft Liability - Crime - Privacy Liability - Owned Leased or Rented Equipment

33A. Given the scope of services for this project, the insurance requirements do not need to be met for the following: Professional Liability, Pollution Liability, Watercraft/Aircraft Liability, Crime, Privacy Liability or Owned, Leased or Rented Equipment.

34Q. Can Unitron be considered as another approved supplier? I have attached

our capability statement you can use to submit your question, along with the data sheet for the proposed units.

34A. Unitron will not be accepted as an approved supplier. 35Q. To meet their 28 VDC requirement, can the 400 HZ / 28 VDC be in a

combination unit or must they be separated. 35A. The 400 HZ/28 VDC must be separated. 36Q. If no to question #2, can Unitron be an approved supplier for the 28 VDC? 36A. Unitron is will not be accepted as an approved supplier. 37Q. The specification asked for voltage sensing at the end of the cable head as an

option. This is not recommended because of the cable is damaged while powering the aircraft, the voltage regulation capability will be lost. Everyone’s converter has built in LDC which can be adjusted for the cable length used.

37A. Unitron is not an approved supplier. Please follow the requirements in the specification.

38Q. Please specify the length of the 400 HZ output cable. 38A. 60 feet.

B. REVISION TO PROPOSAL SECTIONS

Please remove and replace the following pages in your bound and loose yellow proposal sections as follows: 1. Division of Property Management Construction (DPMC) Classification Form – Remove

Page P-41 and Replace with Page P-41A. This form has been revised to include DPMC Classification C009 – General Construction/Additions and Alterations.

C. REVISION TO DRAWINGS

Please remove and replace the following drawings as follows:

1. Remove drawing G0.01 and Replace with G0.01 with Change 1 dated February 11, 2015 – the work area depicted has been revised and the path to the Contractor Staging Area from the airport road has been added.

2. Remove drawing G0.05 and Replace with G0.05 with Change 1 dated February 11, 2015 – the barricade limits and locations have been revised.

3. Remove drawing C2.02 and Replace with C2.02 with Change 1 dated February 11, 2015 – details 1 and 2 have been revised to include a concrete base below the proposed bituminous pavement section. Detail 3 has been removed.

4. Remove drawing C3.01 and Replace with C3.01 with Change 1 dated February 11, 2015 – the entire sheet has been revised.

5. Remove drawing E2.0 and Replace with E2.0 with Change 1 dated February 11, 2015 – the plan and Keyed Note 6 have been revised to provide a 300A instead of a 200A enclosed shunt–trip circuit breaker.

6. Remove Drawing E3.0 and Replace with E3.0 with Change 1 dated February 11, 2015 – the plan and Keyed Notes 4, 6 and 7 have been revised to provide a 300A instead of 200A enclosed shunt–trip circuit breaker and a 250A instead of a 200A shunt-trip circuit breaker in Panel BP4.

D. ATTACHMENTS:

1. Division of Property Management Construction (DPMC) Classification Form, Page P-41A

2. Revised general drawing G0.01 with Change 1 dated February 11, 2015. 3. Revised general drawing G0.05 with Change 1 dated February 11, 2015. 4. Revised civil drawing C2.02 with Change 1 dated February 11, 2015. 5. Revised civil drawing C3.01 with Change 1 dated February 11, 2015. 6. Revised electrical drawing E2.0 with Change 1 dated February 11, 2015. 7. Revised electrical drawing E3.0 with Change 1 dated February 11, 2015.

E. NOTICE OF RECEIPT OF ADDENDUM

Please fax or e-mail

return receipt no later than Tuesday, February 17, 2015 at 4:00 P.M. to:

Attn: Purchasing Division South Jersey Transportation Authority Fax: 609-965-7315 Phone: 609-965-6060

[email protected] FAILURE TO RETURN THIS ACKNOWLEDGEMENT MAY BE CAUSE FOR REJECTION OF YOUR FIRM’S PROPOSAL.

We hereby acknowledge receipt of Addendum 3 Signature: _____________________________ Name (print or type): _____________________________ Title: _____________________________ Company: _____________________________ Date: _____________________________

PROPOSAL SECTION P-41A

DIVISION OF PROPERTY MANAGEMENT CONSTRUCTION (DPMC) CLASSIFICATION

There shall be submitted with the bid proof that each General Contractor listed herein is

pre-qualified and/or classified in accordance with the statues, rules, and/or regulations

promulgated by the Department of Treasury, Division of Property Management and

Construction as applicable in the categories set forth below.

The bidder shall be pre-qualified under:

OR

DPMC Trade Code C008 – General Construction

DPMC Trade Code C009 – General Construction/Additions and

Alterations

Written proof of the classification shall be provided by the bidder at the time of submission.

______________________________________ (Name of Company)

______________________________________ (Signature of Representative)

______________________________________

(Date)

JANUARY 15, 2015APPROVED BY:

DRAWN BY:

CHECKED BY:

DESIGNED BY: DESCRIPTIONSREVISIONNO.

REVISIONDATE

PROJECT TITLE

SHEET TITLE

SCALE

EGG HARBOR, NJ 08234

(609) 641-3833

106 ATLANTIC CITY INTERNATIONAL AIRPORTSOUTH JERSEY TRANSPORTATION AUTHORITY

DATE

SHEET NO.

DRAWING NO.

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ATLANTIC CITY INTERNATIONAL AIRPORTGATE 4 PBB REPLACEMENT PROJECT

PROFESSIONAL SEAL

AECOM USA, Inc.1700 MARKET STREET, SUITE 1600PHILADELPHIA, PENNSYLVANIA 19103TEL 215.399.4300 F 215.399.4350

www.aecom.com

TRANSPORTATIONCONSULTANT:

AURORA ENGINEERS, INC.61 WILMINGTON-WEST CHESTER PIKESUITE 100CHADDS FORD, PA 19317TEL: 610-459-7900FAX: 610-459-7950 26

CONSTRUCTION STAGING AND HAUL ROUTE NOTES

N

AS NOTED

DH

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DH

G0.01HAUL ROUTE AND CONTRACTOR

STAGING AREA2

addendum 3 february 12, 2015

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