LOWER DUWAMISH RIVER Habitat Restoration Program · Duwamish Restoration Program Master Lease •...
Transcript of LOWER DUWAMISH RIVER Habitat Restoration Program · Duwamish Restoration Program Master Lease •...
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LOWER DUWAMISH RIVER Habitat Restoration Program
Site 1
May 3, 2012 Seattle Design Commission
Scott Lockert – Vice President
Bill Granger – Sr. Project Manager
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Who are we?
What do we do?
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Bluefield Holdings, Inc.
• Private Sector Eco Developer – similar to a wetlands mitigation bank
• Seattle Based
• Master lease from City of Seattle
• Credits sold to fulfill Natural Resource Damages liability
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Public Benefits
• City will get habitat developed as a contribution to WRIA 9 salmon recovery at no cost to taxpayers.
• City departments will receive lease payments for now-unused property for a ten year period as well as a fund for long term maintenance
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Public Benefits
• The projects will help Duwamish businesses resolve claims for natural resources damages
• Without Bluefield’s investment, the City would not be able to fund the habitat for many years due to budget constraints
• On SDOT Parcels, Bluefield’s projects help to fulfill the goals of the Street Ends Work Plan
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Duwamish Restoration Program
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Duwamish Restoration Program
Master Lease • Partnership for three years
• Collaboration with Mayor’s Office and City Council
• City Council Ordinance 122729
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Duwamish Restoration Sites
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Eco Credit Process …as it relates to design
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Eco Credit Process Three Steps:
1. Statement of Work Approval (Trustees)
2. Conceptual Design Approval (City)
3. Financial Assurance
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Eco Credit Process
1. Statement of Work Approval (Trustees)
• Sets the stage for the habitat design o Acreage of each habitat type o Channel length and design o Substrate types o Plant palate
• Establishes credit value of project
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Eco Credit Process
2. Conceptual Design Approval (City)
• Based on approved SOW design • 30% Design level (SIP)
o Utilities o Geotechnical o Structural
• Establishes Long-term O&M fund • Establishes lease payments
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Eco Credit Process
3. Financial Assurance
• Based on construction cost est. at 30%
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Site 1 West Side West Waterway
(or)
(we are building a shoreline restoration)
Bluefield Holdings, Inc.
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Location and Ownership
West Seattle Bridge
SW Spokane St. Swing Bridge
SCL Tower
Site 1
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Site Conditions
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Site Conditions
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Site Conditions
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Site Conditions
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Initial Design
Approx. 250 feet of channel Until we get the engineers on board…
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Initial Design
Thrust Block – tons of necessary concrete
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Initial Design
SDOT 0 – 15% Design Review:
• Utilities (SDOT, SCL, SPU) • Structures (SDOT Bridge, Port Ramp) • Access (SDOT, SCL) • Parking
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Initial Design
SDOT 0 – 15% Design Review:
• Condor 170 Access
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Initial Design
Trustees pre SOW input:
• Focus on “off-channel” habitat • Project must be 50 meters
perpendicular to the river
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Design Development
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Design Development
This became the design for the SOW and 30% SIP
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Design Development
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30% Design SDOT 30% Design Review: • Structural tolerances of bridge pilings • Public access • Fiber optic line needs to be re-routed o The line that operates the swing bridge
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30% Design
Trustees Clarification:
• The habitat must contain a channel that is at least 50 meters long (not 50 meters perpendicular to the river)
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30% Design
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60% Design
Retaining wall 3 dia. from ramp piling
Top of cut at least 15’ from Spread footing for bridge
Condor Access Mounding Avoids Utilities and Meets CPTED view guidelines
This has become the 60% Design
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Not Included (but considered)
• Soil Testing and Chemical Analysis • Sediment Testing and Chemical Analysis • Utility Re-location Engineering • Truck/Condor turning movements • Soil Bioengineering • The plan to shut down the swing bridge (!)
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Design Commission Input
Public Viewing Areas
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Design Commission Input
Public Viewing Areas
Seattle PD on CPTED: • Don’t make it easy for people to loiter • No wooden benches • Liked all parking visible from the street • Existing lights under bridge are sufficient
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Public Viewing Areas
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Public Viewing Areas
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Public Viewing Areas
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Public Viewing Areas
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Thank You!