Jacob_Riis__Final_Report_with_Appendices_and_Flysheets_-_March_2015.pdf

National Park Service U.S. Department of the Interior

Gateway National Recreation Area New York

Gateway National Recreation Area Jacob Riis Parking Lot Engineering Study and Seawall Inspection Results and Recommendations

GATE 195485

Gateway National Recreation Area

Jacob RIIS Park Seawall and Parking Lot Repair

Value Workshop i

TABLE OF CONTENTS

Introduction and Background

Workshop Goal and Objectives

Project Overview Presentation

Parking Lot Repair Options Discussion

Sink hole

Storm Pipe

Check Valves

CCTV

Crack Sealing

Preferred Parking Lot Repair Determination

Seawall Repair Options Discussion

Preferred Seawall Repair Option Determination

Visitor Experience/Multi-Use Trail (MUT)

Summary of Recommended Repairs

Parking Lot:

Seawall:

Project Schedule Next Steps

APPENDICES

A. Value Workshop Agenda

B. Workshop Attendee Sign-In Sheet

C. Project Overview PowerPoint Presentation

D. Updated Cost Estimates

Gateway National Recreation Area

Jacob RIIS Park Seawall and Parking Lot Repair

Value Workshop

INTRODUCTION AND BACKGROUND

Jacob Riis Park is located within the Jamaica Bay Unit of the Gateway National Recreation Area.

The project area includes the parking lot serving the Park and the seawall facing Jamaica Bay to the north of the parking lot and Beach Channel Drive.

Jacob Riis Park Project Location

The Jacob Riis Park parking lot was inundated during Hurricane Sandy. The Park and the surrounding area sustained major damage during the storm. The parking lot served as a staging area for debris collection and removal in the months following the storm, which resulted in additional damage from associated heavy equipment. The purpose of this project is to conduct field investigations to identify existing conditions of the storm drainage system, pavement surface, and seawall, and to develop recommended repairs and estimated costs based on an engineering analysis of the existing conditions.

The repair options reviewed during the workshop were based on previously completed field investigations which identified the existing conditions of the storm drainage system, pavement surface, and seawall. At the time of the field investigations, repair options were considered and developed with estimated costs based on the preliminary engineering analysis of the site.

The prior evaluations of existing site conditions included:

Conducting a topographic survey of the parking lot and surrounding areas, Conducting a close circuit TV (CCTV) inspection of the storm drain pipes within the parking lot area and the pipes leading to Jamaica Bay, A visual inspection of the seawall to the north of the parking lot, including the top of the seawall and the face of the seawall from the water, and A visual inspection of the parking lot pavement surface

Recommendations were made for the rehabilitation of five primary components including:

Storm Drainage Piping System Sinkhole in Parking Lot Pavement Surface Seawall Multi Use Path

WORKSHOP GOAL AND OBJECTIVES

The value-based workshop was conducted at the GATE headquarters building with GATE staff and the consultant attending and NPS DSC and other GATE staff attending via telephone conference call. See Appendix A for the Value Workshop Agenda and Appendix B for the Attendee/Sign-in sheet.

The purpose of the value-based decision making workshop was to determine the preferred repair options and priorities for the parking lot and seawall that could be moved forward for design and construction. In addition, various funding sources and the eligibility of the primary work components to be funded with the funding sources were discussed, and an implementation plan developed.

PROJECT OVERVIEW PRESENTATION

An overview of the project was presented in a PowerPoint presentation, which is provided in Appendix C. The presentation focused on the parking lot sink hole and storm water piping and the seawall. The highlights of the parking lot and seawall discussions are summarized below:

PARKING LOT REPAIR OPTIONS DISCUSSION

Sink hole

The work associated with repairing the sink hole includes:

Remove portions of failing concrete slab (slab thickness approximately 6”) Remove and replace failed pipe Fill and compact sink hole area Replace concrete slab

Storm Pipe

There are three sections of storm water piping that require replacement or relining. The pipe will be relined except in cases where the pipe has completely failed. Pipes crossing under Beach Channel Drive are to be relined in order to avoid impacts to the road and vehicular access to the park.

Check Valves

Tide check valves were discussed and determined to be needed to limit the inflow of water from the bay up the pipes to the parking lot during high tide and storm events. The check valves would be installed at the parking lot outfall pipes at the seawall. The check valves would prevent water from inundating the parking lot and potentially causing the migration of fill material from around the pipes and causing subsequent future sink holes.

CCTV

Closed Circuit TV (CCTV) inspections were previously made of the parking lot pipes. Additional CCTV inspections are to be made of New York City owned pipes upon coordination with, and approval from NYC.

Crack Sealing

The sealing of the existing parking lot pavement cracks and joints was discussed. The existing cracks and joints act as a type of pervious pavement by allowing some storm water to drain through the joints and percolate into the underlying material. It was determined that the benefit of water infiltration through the joints exceeds the benefits of sealing all the joints and cracks. Furthermore, the cost of the crack sealing would likely exceed $2M.

As crack sealing has been a very low priority, and in consideration of the advantage of allowing water infiltration, crack sealing is not being considered further for inclusion in the overall work

Broken and Depressed Slab components; however, a line item with a per linear foot cost would be included in the design package so that in the event that there is a special need for crack sealing, it could be implemented.

In addition, the repair of drain inlets was also discussed. Although there is not specific inlets identified for repair, an inlet repair line item would be included in the design work package so that existing inlets or the immediate area around them could be modified to allow run-off to drain into the structure.

Currently at some structures, minor pavement upheavals prevent the flow of water to the inlets.

Preferred Parking Lot Repair Determination

The following is a summary of the preferred parking lot repair items:

Remove failing concrete slab, as required Repair/replace pipe/structure associated with sink hole Fill/compact sink hole area and replace concrete slab Slip line storm pipes and replace failed pipe Install check valves on two out fall pipes

Note: CCTV inspection of NYC owned pipes to be completed by the NPS in coordination with NYC separate from the construction work package.

SEAWALL REPAIR OPTIONS DISCUSSION

The objective of the seawall repair is to prevent washouts from occurring on the backside (landside) of the seawall due to the deteriorated condition of the seawall sheathing. There are significant washout on the backside of the seawall, as noted in the seawall inspection report. In order to stabilize the ground on the backside of the seawall, the seawall foundation or the tongue and groove (T&G) sheathing from the mudline up must be replaced or repaired. This will prevent the migration of fine backfill material through the seawall, resulting in depressions and settlement along the backside of the seawall.

Deteriorated Concrete Patch

Near Entrance

Existing Seawall Railing

The life expectancy of a complete seawall repair including new sheathing or sheet piling would be in the range of 25 to 30 years. A short term repair or the sheathing holes (such as welding steel plates over sheathing holes), including backfill the void spaces, would likely provide a temporary fix of up to three years or so. The cost per linear foot of repair would be significantly more than the cost per linear foot of a continuous repair due to the relative amount of handwork and underwater work performed by a dive team. This type of work does not have the economy of scale benefit.

Relating to the seawall work, the compliance requirements were briefly considered as they may impact the project schedule and execution. It is understood that the seawall is not likely to be a historic structure, as it was rebuilt sometime around the 1960’s. The NPS is to confirm this.

A permit for in-water seawall repair work, such as installation of sheet piling, would require permits from the New York State Department of Environmental Conservation (NYDEC) and the U.S. Army Corps of Engineers (USACOE). The NPS is to take the lead in obtaining the required permits.

PREFERRED SEAWALL REPAIR OPTION DETERMINATION

Visitor Experience/Multi-Use Trail (MUT)

Railing repair and replacement along the seawall/MUT was discussed. This is a high priority component of the work package for two important reasons:

1. It is a safety issue for visitors using the MUT as sections of the railing are completely missing. In these areas, only a chain link fence has been temporarily placed along the area of the missing railing. Other railing sections are loose and not securely connected to the seawall.

As a result, the railing does not provide the necessary strength to protect the public.

2. Aesthetically, the disrepair of the railing is an eyesore. It is within full view of visitors and has a high profile public image. As a result, it is politically sensitive to not have such a highly visible, safety issue left uncorrected.

There is approximately 750 lf of railing that needs to be repaired or replaced. Of the 750 feet, an estimated 25% (~200 lf) needs to be replaced. The existing repaired railing would also be sand or water blasted and painted to match the new railing. If the railing work is completed prior to the seawall repair work, the contractor would be required to work around the railing and protect it from damage.

In addition to the railing repair, there would also be the associated repair of the concrete as necessary to support the railing connections.

The overall restoration of the site would be accomplished by improving the landscape/hardscape items such as, MUT surface treatment of geo-grid/pervious paver trail stabilization, ground cover and benches, and associated concrete pads. Because of the high priority of this work, the above items would be included in the work package for the parking lot

SUMMARY OF RECOMMENDED REPAIRS

The work packages for the repairs would likely be Design-Bid-Build construction documents. The work would be broken down into two work packages as summarized below and as indicated in the work package cost estimates contained in Appendix D.

Existing Railing along Seawall

Parking Lot:

The work items for the parking lot bid package would include the following:

Slip line three sections of pipe as indicated in the PP presentation graphic in Appendix C.

Replace pipe sections that have failed and cannot be slip lined.

Install check valves at the seawall outfall of drain pipes Fix sink hole as described above Replace missing and damaged-beyond-repair railing (~200 lf) Repair and repaint existing railing (~550 lf) Multi-Use Trail and site restoration

Seawall:

The work items associated with the seawall bid package would include the following:

Repair seawall foundation, including new sheathing/sheet piling backfill (providing a future life expectancy of 25 to 30 years)

If the seawall work were to occur before the parking lot work, then the installation of the outfall check valves would be included in the work package.

PROJECT SCHEDULE NEXT STEPS

Draft RIIS Value Workshop Summary Report due to NPS for review by March 6, 2015 Design Advisory Board (DAB) Meeting June 2015. The schematic design plans would have to be approved and ready for submission to the DAB by mid May 2015.

As part of the next steps of the project, the NPS will likely set up scheduled conference calls to ensure the project execution and progress is made in order to meet the required funding schedules and deadlines.

Appendices

List of Appendices:

A. Value Workshop Agenda B. Workshop Attendee Sign-in Sheet C. Project Overview PowerPoint Presentation D. Updated Cost Estimate

Appendix A

Value Workshop Agenda

Date: 2/23/15 Page: 1

NATIONAL PARK SERVICE

VALUE-BASED DECISION MAKING WORKSHOP

Jacob Riis Parking Lot Engineering Study and Seawall Inspection Results and Recommendations

Gateway National Recreation Area, Jamaica Bay Unit

Superintendent's Conference Room - Call in number: 866-912-7875 Passcode: 9415333#

Video link https://plus.google.com/hangouts/_/doi.gov/jen

AGENDA

February 19, 2015

Workshop Team

Jennifer Nersesian GATE – Superintendent 718-354-4661

Jeff Kangas GATE - Chief of Maintenance / POC 718-354-4798

Dave Taft GATE – Jamaica Bay Unit Manager 718-354-4642

Richard O’Neill GATE - Facility Manager 718-338-3338

Tim Hudson Hurricane Sandy Recovery Manager 718-354-4620

Judith Smith GATE – Administrative Assistant 718-354-4568

Pat Sacks NPS / DSC Transportation - PM 303-969-2431

Michael Pisano DSC – T / Landscape Architect – PS 303-987-6887

Kristie Franzmann DSC - Transportation Supervisor 303-969-2284

Gail Stahlecker DSC – Landscape Architect 303-358-6939

Kevin Powers VHB Coastal Engineer 518-389-3600

Tim Hogan VHB Facilitator 757-592-8733

Gordon Daring VHB Project Manager 860-573-9856

Meeting Location: GATE STIS Headquarters Conference Room, Fort Wadsworth, Staten

Island, NY, DSC location TBD

The value workshop team will be presented with information relating to the project site conditions, evaluation reports and repair options considered. The information will include cost estimates, site maps and other relevant information. The goal for the workshop is for the team to review and understand of project history, inspections completed and other project information and to determine a plan to accomplish the required repairs.

12:30 pm Workshop Setup / DSC Call-in line established ...................................... .VHB/NPS

1:00 pm Workshop Start: Greetings and Introductions ......................... Tim Hogan/Pat Sacks

1:10 pm Workshop Goal and Objectives .............................................................. Tim Hogan

1:15 pm Project Overview Presentation .......................................................... Gordon Daring

1:30 pm Parking Lot Repair Options Discussion…………………….……………..… Team

1:45 pm Preferred Parking Lot Repair Determination….…………………………..… Team

2:00 pm Seawall Repair Options Discussion……………………...………………..… Team

2:15 pm Preferred Seawall Repair Option Determination………………….……....… Team

2:30 pm Summary of Recommended Repair…………….……………………..…..… Team

2:45 pm Next Steps/Project Schedule ............................................................................ Team

Close for Day: 3:00 pm

Appendix B

Workshop Attendee Sign-in

Sheet

\\vhb\proj\Wat-LD\33871.02 ERFO_Various\docs\VARIOUS\RIIS Value Meeting Feb 2015\RIIS Value Workshop Meeting Sign-In Sheet 02.19.15.doc

NATIONAL PARK SERVICE

VALUE-BASED DECISION MAKING WORKSHOP

Jacob Riis Park Seawall and Parking Lot Repair

Gateway National Recreation Area, Jamaica Bay Unit

Thursday, February 19, 2015

SIGN IN SHEET

Name Affiliation Email Phone Number

1. Tim Hogan VHB THogan@vhb.com (757) 220 0500

2. Gordon Daring VHB gdaring@vhb.com (860) 807 4354

3. Kevin Powers VHB Kpowers@vhb.com (518) 389-3602

4. Rich Dvorak NERO/ Sandy Richard_Dvorak@nps.gov (718) 619-0370

5. Jeff Kangas NPS/ GATE Jeff_Kangas@nps.gov (718) 354-4754

6. Minka Sendich GATE Minka_Sendich@nps.gov (718) 354-4628

7. Jennifer Nersesian GATE Jen_Nersesian@nps.gov (718) 354-4661

8. Gail Stahlecker* DSC Gail_Stahlecker@nps.gov (303) 969-2369

9. Mike Pisano* DSC Michael_Pisano@nps.gov (303) 987-6887

10. Ricki O’Neill* GATE Richard_O’Neill@nps.gov (718) 338-3338 Ext. 240

11. Pat Sacks* DSC Pat_Sacks@nps.gov (303) 969-2431

12. Tim Hudson* GATE Tim_Hudson@nps.gov

13. Kristie Franzmann* GATE Kristie_Franzmann@nps.gov (303) 969-2284

*Signifies people who joined by phone mailto:THogan@vhb.com mailto:gdaring@vhb.com mailto:Kpowers@vhb.com mailto:Richard_Dvorak@nps.gov mailto:Jeff_Kangas@nps.gov mailto:Minka_Sendich@nps.gov mailto:Jen_Nersesian@nps.gov mailto:Gail_Stahlecker@nps.gov mailto:Michael_Pisano@nps.gov mailto:Pat_Sacks@nps.gov mailto:Tim_Hudson@nps.gov mailto:Kristie_Franzmann@nps.gov

Appendix C

Project Overview PowerPoint

Presentation

Jacob Riis Park Seawall and Parking Lot Repair

Value Based Decision Making Workshop

Jacob Riis Park Seawall and Parking Lot Value Based Decision Making Workshop

February 19, 2015

Prepared by

Project Location

Project Location

Reports

Rehabilitation Needs

�Structural and Safety •Storm Drainage System

•Parking Lot Sinkhole

•Seawall Foundation and Facing

�Visitor Experience •Seawall Railing

•Multi-Use Path

�Infrastructure Preservation •Parking Lot Joint and Crack Repair

Storm Drainage and Sinkhole

Overview of Rehabilitation Needs

Sinkhole

Vanasse Hangen Brustlin, Inc.

\\CTMIDDAT\projects\33259.18 Riis_Parking\cad\ld\Planmisc\33259.18 Riis_Seawall rev1.dwg

Jacob Riis Parking Lot Engineering Study - Seawall Inspection 157 Rockaway Beach Boulevard Queens, New York

June 16, 2014

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Jacob Riis Parking Lot Engineering Study - Seawall Inspection 157 Rockaway Beach Boulevard Queens, New York

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Jacob Riis Parking Lot Engineering Study - Seawall Inspection 157 Rockaway Beach Boulevard Queens, New York

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Jacob Riis Parking Lot Engineering Study - Seawall Inspection 157 Rockaway Beach Boulevard Queens, New York

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Jacob Riis Parking Lot Engineering Study - Seawall Inspection 157 Rockaway Beach Boulevard Queens, New York

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Jacob Riis Parking Lot Engineering Study - Seawall Inspection 157 Rockaway Beach Boulevard Queens, New York

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Seawall Foundation and Facing mdale Text Box -21-

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PHOTO 10 - Station 1+50 to 2+00, elevation view of vertical timbers, looking southeast.

PHOTO 9 - Station 1+97, heavily corroded and missing timber sheeting hardware, 18”Wx 10’Hx 6”D spall at vertical joint with exposed corroded reinforcement, looking southwest.

-40-

PHOTO 12 - Station 5+45, 2’ to 5’H x 2.5’D void starting at the mudline (typ.), looking south.

PHOTO 11 - Station 2+73, void 1’Hx up to 2.5’D, looking southeast.

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PHOTO 14 - Station 10+25, 2’ to 5’H x 2.5’D void starting at the mudline (typ.), looking south.

PHOTO 13 - Station 7+40, 2’ to 5’H x 2.5’D void star ting at the mudline (typ.), looking south.

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Seawall Railing and Multi Use Trail

Seawall Railing and Multi Use Trail

Parking Lot Joint and Crack Repair

Parking Lot Joint and Crack Repair

Repair Needs and Estimated Costs

Repair CategoryEstimated Cost

Structural and Safety Improvements

Storm Drainage

Replace 377 lf of 30” RCP between CB10 and Outfall$194,566

Replace 280 lf of 24” RCP between MH4 and CB9112,024

Line 294 lf of 30” RCP between CB3 and the Outfall289,470

Repair Sinkhole$131,279

Seawall

Rehabilitate Seawall Foundation1,801,195

Seawall Foundation Rehabilitation Scour Protection3,414,700

Install Check valves on NPS Outfalls on Seawall185,118

Install Check valves on Other Outfalls on Seawall814,518

Structural and Safety Improvement Sub-total$6,942,870

Visitor Experience Improvements

Seawall Railing

Concrete Repair1,542,648

Railing Repair and Replacement822,746

Remove and Reconstruct Multi Use Path$539,702

Visitor Experience Improvement Sub-total$2,905,096

Infrastructure Preservation Improvements

Joint and Crack Repair and Curb Repair2,784,849

Infrastructure Preservation Improvement Sub-total$2,784,849

Grand Total$12,632,815

Discussion

Appendix D

Updated Cost Estimate

Vannasse Hangen Brustlin, Inc.

Engineers.Scientists.Planners.Designers Project # 33259.18 351 Mc Laws Circle Date: 2/27/2015 Suite 3 Calc. By: K Powers Williamsburg, VA 23185 Checked By: T Hogan

Item Qty Unit Cost Total

WORK PACKAGE #1

Parking Lot Repair

Repair Sinkhole 1 ls $ 131,279 $ 131,279

Reline/Replace 30" RCP between CB10 & the

Outfall 377 lf $ 985 $ 371,345

Replace 24" RCP between MH4 & CB9 280 lf $ 400 $ 112,000

Line 30" RCP between CB3 & the Outfall 294 lf $ 985 $ 289,590

Install Check Valves on NPS Outfalls on Seawall 1 ls $ 185,118 $ 185,118

Seawall Railing Repair & Replacement 1 ls $ 822,746 $ 822,746

Concrete Repair at Seawall Railing 1 ls $ 1,542,648 $ 1,542,648

Remove & Reconstruct Multi Use Path 1 ls $ 539,702 $ 539,702

Landscape/Hardscape Site Restoration 1 ls $ 200,000 $ 200,000

$ 4,194,428

$ 4,194,428

WORK PACKAGE #2

Seawall Repair

Rehabilitate Seawall Foundation 1 ls $ 1,801,195 $ 1,801,195

Sewall Foundation Rehabilitation Scour Protection 1 ls $ 3,414,700 $ 3,414,700

Remove Timber Tongue & Groove Sheathing 1 ls $ 350,000 $ 350,000

$ 5,565,895

5,565,895$

$ 9,760,323

Install Check Valves on NYC Outfalls on Seawall 1 ls $ 814,518 $ 814,518

SEAWALL REPAIR TOTAL

WORK PACKAGE #2 SUBTOTAL

TOTAL PROJECT NET CONSTRUCTION COST

Jacob Riis Park Seawall & Parking Lot Repair

WORK PACKAGE #1 SUBTOTAL

Opinin of Probable Construction Costs

Value Based Decision Making Workshop

PARKING LOT REPAIR TOTAL

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As the nation’s principal conservation agency, the Department of the Interior has responsibilities for most of our nationally owned public lands and natural resources.

This includes fostering wise use of our land and water resources, protecting our fish and wildlife, preserving the environmental and cultural values of our national parks and historic places, and providing for the enjoyment of life through outdoor recreation. The department assesses our energy and mineral resources and works to ensure that their development is in the best interests of all our people. The department also promotes the goals of the Take Pride in America campaign by encouraging stewardship and citizen responsibility for American Indian reservation communities and for people who live in island territories under U.S. administration.

February 2015