Presentation depicting the plan to reconstruct Blocks 14th thru 19th in Broad Channel to alleviate tidal flooding and seal level rise and to install new infrastructure and bulkheads
1. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
1|
ENGINEERING, DESIGN AND RELATED CONSULTANT SERVICES FOR
RECONSTRUCTION OF WEST 14th – 19th
BOROUGH OF QUEENS
NYCDDC PROJECT ID. HWQ1182B
March 23, 2017
PRESENTATION
2. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
2|
Agenda
Introduction
Understanding the Need for this Project
Concept of a Shared Street
Proposed Design
Anticipated Project Challenges
Private Property Restoration
Understanding of Critical Schedule Elements
Closing
3. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
3|
introduction
4. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
4|
Project Synopsis
A keen understanding of rising sea Levels, substandard infrastructure, and the community
Low Lying Property and Streets (most built
before Legal Grade established 1945)
Substandard Storm Drainage System
Rising Sea Levels (expected to rise an
additional 4 to 24 inches for next 20 years)
Parking Constrictions
5. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
5|
understanding the need for the project
6. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
6|
Existing Flooding
Sea level rise of any amount is affects to the Broad Channel community
MHW + 1 MHW + 5
7. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
7|
Goals, Needs, Wants
Developing the scope, and prioritizing the elements of this reconstruction project
Goals
Needs
Wants
Reduce frequency and severity of flooding within the public space
Preserve the family-oriented residential feel of the community
Restore the ecology along the coastline
Raise elevation of public space (streets)
Install new public infrastructure (water, sewer, storm, sanitary)
Harden coastal line
Mitigate impact to private homes and property
Install water, storm, and sanitary sewers
Consider aesthetics, ensure the project materials are consistent with community
8. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
8|
concept of a shared street
9. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
9|
Innovative way to approach street raising
• Raise the entire public space to an elevation that takes into account historical
flooding elevations and future climate change projections
• Create a single surface where pedestrians, bicycles, and automobiles share the
space and interact
• R.O.W. is ADA compliant
• Special zone for visually impaired
• Single bi-directional moving lane with pullover zones to allow vehicle passing
Re-thinking street design and flood mitigation on narrow residential streets
10. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
10|
Innovative way to approach street raising
RBA Technical Memo
Re-thinking street design and flood mitigation on narrow residential streets
NYC Climate Change Report
Other Publications
• Living Streets
• ACOE Coastal Risk Reduction
• NYS GOSR NYRCR Plan
• NYC Special Initiative for Rebuilding
and Resiliency (SIRR)
• NACTO Urban Street Design
• FHWA, Shared Streets
11. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
11|
Innovative way to approach street raising
Re-thinking street design and flood mitigation on narrow residential streets
12. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
12|
Innovative way to approach street raising
Re-thinking street design and flood mitigation on narrow residential streets
13. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
13|
Innovative way to approach street raising
Re-thinking street design and flood mitigation on narrow residential streets
14. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
14|
Innovative way to approach Street raising
Re-thinking street design and flood mitigation on narrow residential streets
15. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
15|
Innovative way to approach street raising
Re-thinking street design and flood mitigation on narrow residential streets
16. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
16|
Innovative way to approach street raising
Re-thinking street design and flood mitigation on narrow residential streets
17. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
17|
Innovative way to approach street raising
Re-thinking street design and flood mitigation on narrow residential streets
18. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
18|
Innovative way to approach street raising
Re-thinking street design and flood mitigation on narrow residential streets
19. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
19|
Innovative way to approach Street raising
FHWA Guidance
Re-thinking street design and flood mitigation on narrow residential streets
No ramps, slopes, or ADA
impediments
West 14th Street
20. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
20|
proposed design
21. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
21|
Basic Street Elements
Pull Over Zones at Fire
Hydrants
Bulkhead at
End of
Roadway Distinctive Raised
Entrance and Signage
Shared Cross Section at a
single elevation with
variations in pavement
materials and patterns to
highlight dominant uses
22. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
22|
Basic Cross Section
Typical cross section of proposed elements
23. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
23|
Utility Infrastructure
• Water
• Storm sewer
• Sanitary Sewer
• Outfall to Jamaica
Bay
24. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
24|
Bulkhead / Waterfront
Hardened waterfront protection
• Similar in nature to the shorelines
proposed under Phase 1
• Bulkhead built to the 100-year FEMA
floodplain elevation
• Provides protection against coastal
flooding and storm surge
• Prevents natural marsh migration and
may create seaward erosion
26. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
26|
Alternative Bulkhead / Living Shoreline
Combination of hardened shoreline and Living Shoreline
• Resilient against storm surge
• Natural wave attenuation, decreasing
effect of storm surge
• Improves water quality
• Marshes trap sediment from tidal
waters allowing them to grow as sea
level rises
• Consistent with existing ecology of
Jamaica Bay
27. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
27|
private property restoration
28. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
28|
Private Property Restoration
Wood Stairs (23 West 14th Street)
• Decks Preserved
• Stairs Modified
• Restore similar
surface in front of
home
29. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
29|
Private Property Restoration
Wood Stairs (23 West 14th Street)
• Ornaments / Special
features will have to
be removed prior to
private property
construction
• Standard material
will be rebuilt (such
as chain link fence)
• Stairs Modified
• Provide options for
surface restoration in
front of homes
30. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
30|
Private Property Mitigation
Wood Stairs (23 West 14th Street)
31. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
31|
anticipated project challenges
32. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
32|
Construction Means and Methods
Re-thinking waterfront construction options/techniques
Phase 1 Cofferdam Smaller Cofferdam for Site Specific Work
33. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
33|
Permitting
Understanding agency requirements specifically DOT, DEP, DEC, and ACOE
34. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
34|
understanding of critical schedule
elements
35. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
35|
Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun
Schedule
NTP
Mass Mailing 2 (80%)
CB One-On-One
CB Meeting
Draft Consent Letter
Bid Documents
Advertise for Bid
2016 2017
36. 23 MARCH 2017
Broad Channel Streets and Bulkheads Reconstruction
West 14th Road – West 19th Road
36|
questions