US-98 Soft Armor Countermeasures utilizing polymer technology

Topic Description

Case study on the use of PAM in soft-armouring coastal roadway shoulder post-hurricane.

Speaker Biography

Currently serves as the FDOT State Environmental Research Administrator and State Wetland Programs Administrator and is involved in all aspects of FDOT environmental isuues including permitting and erosion/sediment control policy and procedure. A former US Air Force Academy cadet and a graduate of the University of Florida.

Josh Boan

Session 51

FDOT Central Environmental Management

US-98 Soft Armor Countermeasures utilizing polymer technology

Topic Description

Case study of the US-98 (post-hurricane) soft-armor counter measures with the utilization of polymer enhanced technology.

Speaker Biography

Michael Shepard is currently a Drainage Engineer at the Central Office. He was previously an Area Design Engineer at the CentralOffice and a Drainage Engineer in District 3. He has been with the FDOT for 9 years. Michael received his BS in Civil Engineering from the FAMU/FSU College of Engineering in 1996. Prior to employment with the FDOT, he worked in construction and materials for 10 years with the private sector.

Mike Shepard

Session 51

FDOT Central Drainage Office

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US 98 (Franklin County) Soft US 98 (Franklin County) Soft Armor Countermeasures Utilizing Armor Countermeasures Utilizing Polymer Technology (Case Study)Polymer Technology (Case Study)

Josh Boan, FDOT EMOJosh Boan, FDOT EMOMichael Shepard, FDOT Drainage Michael Shepard, FDOT Drainage

Steve Iwinski, Applied Polymer Systems, Inc.Steve Iwinski, Applied Polymer Systems, Inc.

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Storm Surge 6 - 8 Feet

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EMERGENCY REPAIR CONTRACTEMERGENCY REPAIR CONTRACT

•• $10.8 Million Contract awarded to C.W. $10.8 Million Contract awarded to C.W. Roberts ContractingRoberts Contracting

•• Goal to reGoal to re--construct and open traffic on construct and open traffic on US 98 (approx. 14 miles). US 98 (approx. 14 miles).

•• Emergency repairs to be completed in 14 Emergency repairs to be completed in 14 days.days.

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Emergency Contract CompleteEmergency Contract CompleteTravel Lanes ReconstructedTravel Lanes ReconstructedTraffic RestoredTraffic Restored

Erosion of Front Slope and ShoulderErosion of Front Slope and Shoulder

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Design ObjectivesDesign Objectives

•• Quickly Protect and minimize erosion of Quickly Protect and minimize erosion of front slopes and shouldersfront slopes and shoulders–– Requires low maintenance solutionRequires low maintenance solution–– Vegetation that can resist harsh environmentVegetation that can resist harsh environment–– ShortShort--term (1term (1--2 years) solution until more 2 years) solution until more

““permanentpermanent”” countermeasures are identifiedcountermeasures are identified–– Accommodates future construction of paved Accommodates future construction of paved

shouldersshoulders–– Cost effective designCost effective design

Initial Design Considerations Initial Design Considerations

•• Curb and GutterCurb and Gutter•• Turf Reinforcement Mat (TRM) with seed Turf Reinforcement Mat (TRM) with seed

or sodor sod•• Permanent, NonPermanent, Non--degradabledegradable•• High Tensile StrengthHigh Tensile Strength•• Predominately used for High Velocity Channels or Predominately used for High Velocity Channels or

Steep SlopesSteep Slopes•• Costly ($12Costly ($12--$15 SQ YD)$15 SQ YD)

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•• Reviewed sample of proposed TRMReviewed sample of proposed TRM•• Field Review of site conditionsField Review of site conditions

–– SlopesSlopes–– SoilsSoils–– Existing VegetationExisting Vegetation–– Other Site ChallengesOther Site Challenges

•• Reviewed alternative solutions Reviewed alternative solutions •• Consulted with Applied Polymer SystemsConsulted with Applied Polymer Systems

District 3 and CO CoordinationDistrict 3 and CO Coordination

Final Selection of Soft Armor Final Selection of Soft Armor Countermeasure MatrixCountermeasure Matrix•• Key componentsKey components

–– CompostCompostMoisture RetentionMoisture Retention

–– Jute Erosion Control Blanket (ECB)Jute Erosion Control Blanket (ECB)Natural Natural ““rebarrebar””

–– Polyacrylimide (PAM) PowderPolyacrylimide (PAM) PowderBonding AgentBonding Agent

–– Vegetation (Bermuda Sod) Vegetation (Bermuda Sod)

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Scope of ServicesScope of Services

Work consists of removing existing turf, Work consists of removing existing turf, blade and shape existing shoulders and blade and shape existing shoulders and front slopes, preparation and placement of front slopes, preparation and placement of 22”” depth compost, erosion control blanket depth compost, erosion control blanket (jute mat), polyacrylimide powder (QPL# (jute mat), polyacrylimide powder (QPL# MM--0203) to be placed at 25lb/ac as 0203) to be placed at 25lb/ac as directed by the engineer and Bermuda directed by the engineer and Bermuda grass sod.grass sod.

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Pay Item Description Unit Quantity Unit Price Total101-1 Mobilization LS 1 75000.00 75,000102-1 MOT LS 1 30000.00 30,000577-70 Shoulder Rework SY 71,000 2.00 142,000104-13 Sitl Fence Staked Type III LF 32,500 2.00 65,000

162-3-100Finish Soil Layer (Compost) (2") SY 71,000 2.00 142,000

575-1-6 Sodding SY 71,000 2.65 188,150

104-1-100Silt Stop Powder QPL M-203 Misc Erosion Control LB 300 50.00 15,000

104-1 Artifical Covering SY 51,000 1.50 76,500570-9 Water for Grassing MG 440 25.00 11,000

Total $744,650

Contract Quantities and Cost

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8 MONTHS LATER:8 MONTHS LATER:

Still Performing Still Performing

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AcknowledgementsAcknowledgements

•• Greg Ouzts Greg Ouzts –– Assistant Operations Assistant Operations Engineer, Midway Operations D3. Engineer, Midway Operations D3.

•• Marlon Holzbach Marlon Holzbach –– VMS IncVMS Inc

Questions ?Questions ?

Josh Boan Josh Boan (850) 414(850) 414--52665266

joshua.boan@dot.state.fl.usjoshua.boan@dot.state.fl.us

Michael ShepardMichael Shepard(850) 414(850) 414-- 43304330

michael.shepard@dot.state.fl.usmichael.shepard@dot.state.fl.us