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San Francisco-Oakland Bay Bridge East Span Seismic Safety Project Contractor Outreach August 13 and 14, 2002 SFOBB New East Span August 13 and 14, 2002 Outreach event Welcome - my name is Sarah Picker Purpose Agenda Networking What can we accomplish?
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San Francisco-Oakland Bay Bridge East Span Seismic Safety Project Contractor Outreach August 13 and 14, 2002
SFOBB New East Span August 13 and 14, 2002 Outreach event • Welcome - my name is Sarah Picker • Purpose • Agenda • Networking • What can we accomplish? • Sign-In Please • Survey - day or night meetings
Purpose - Aug 13, 14 • Present information on project • SFOBB New East Span • encourage participation, primes meeting potential sub-contractors and suppliers
Welcome • Paul Hensley Caltrans Chief Deputy District Director
Project Limits San Francisco Oakland Project Limits
T1/E2 foundations (04-0120E1) Transition structure (04-0120H1) E2 Retrofit/Substation (04-0120G1) T1 SAS superstructure (04-0120F1) W2 foundation (04-0120C1) Building demolition Yerba Buena Island YBI/SAS Contracts
Welcome • James Fields City and County of San Francisco Human Rights Commission
Welcome • Deborah Barnes City of Oakland
The project team proposes the following contracts: • YBI Building Demolition(R/W) • a contract to remove three USCG buildings and one state building executed as a right-of-way service contract
The project team proposes the following contracts: • SAS W2 Structures • a contract to construct the Self-Anchored Suspension bridge land-based foundation, pier W2
The project team proposes the following contracts: • YBI Substation & Viaduct Retrofit • a contract to construct a replacement electrical substation on YBI near the westbound on-ramp and complete relatively simple bridge retrofit work near the YBI tunnel (this work is combined due to the close proximity of the work)
The project team proposes the following contracts: • SAS E2/T1 Structures • a contract to construct the Self-Anchored Suspension bridge in-bay foundations, the main tower (T1) and pier E2 just to the east of YBI
The project team proposes the following contracts: • SAS Superstructures • a contract to construct the tower and superstructure of the Self-Anchored Suspension bridge
The project team proposes the following contracts: • YBI Structures • a contract to construct the temporary detour and permanent bridges on YBI
SAS/YBI Discretization • What in the heck does that mean? • Did you go to the March 12 Contractor Outreach? • At that time, we exhibited information related to a certain project code 04-012064 SAS/YBI
SAS/YBI Discretization • June 11, 2002 letter from Brian Maroney, Project Manager, announced that we were breaking up the project • smaller contracts that focus specific types of construction work create more opportunities for DBE and small business participation
Recap of SFOBB East Span Seismic Safety Project • already awarded • PIDP 04-012084 • Skyway 04-012024 • Geofill 04-012054 • Archeological Excavation and Midden Site 04-012074
Recap of SFOBB East Span Seismic Safety Project • YBI Building Demolition(R/W) • SAS W2 Structures 04-0120C1 • YBI Substation & Viaduct Retrofit • SAS E2/T1 Structures • SAS Superstructures • YBI Structures
Recap of SFOBB East Span Seismic Safety Project • Oakland Touchdown • Existing bridge demolition
SFOBB East Span • Tonight’s discussions relate to the W2 construction contracts we are planning to advertise for bid this fall and the Division of Right of Way’s service contract
That would be the following: • SAS W2 Structures • YBI building demolition (R/W)
What is the schedule? • We plan to advertise the W2 contract 04-0120C4 in September 2002 • Why do I keep repeating the contract number? • The R/W contract may hit the streets in late August/early September
Other Introductions • Will the Potential Prime Contractors in the room volunteer to raise their hands? • Would the DBE certified businesses raise their hands? • Would the potential DBE or small businesses raise their hands?
Suggest a resource • How Caltrans Builds Projects • www.dot.ca.gov/hq/oppd/Proj_book/overview.pdf
Roadway Items Steven Hulsebus Office Chief, Toll Bridge Program
Project Limits San Francisco Oakland Project Limits
T1/E2 foundations (04-0120E1) Transition structure (04-0120H1) E2 Retrofit/Substation (04-0120G1) T1 SAS superstructure (04-0120F1) W2 foundation (04-0120C1) Building demolition Yerba Buena Island YBI/SAS Contracts
YBI Transition Structure W2 foundation contract
YBI Eastbound On-Ramp W2 foundation contract
Self-Anchored Suspension Span (SAS) W2 foundation contract
Yerba Buena Island • Varied topography -- 60 meter elevation change • Steep slopes • Narrow winding roads • USCG base for 24 hour Search and Rescue unit • Lots of underground utilities
Environmental Constraints at YBI Historic Structures W2 foundation contract W2 foundation contract USCG Facilities
Special Aquatic Site - Yerba Buena Island Yerba Buena Island
San Francisco-Oakland Bay BridgeEast Span Seismic Safety Project DBE/SBE/DVBE Outreach Program Fall 2002
YBI Structures • YBI Transition Structure • EB On-Ramp • Viaduct Modifications (Initial) • Viaduct Modifications (Final) • Temporary Detour Structures
Contract Limits OAKLAND APPROACH YBI TRANSITION SUSPENSION SKYWAY OAKLAND GEOFILL SKYWAY SUSPENSION OAKLAND APPROACH YBI TRANSITION Existing Bridge
YBI Structures: Quantities • Temp Detour Structure: • Towers and Floor Beams = 5,700,000 kg • HP360 Piles = 6,200 meters • Permanent Structure: • HP Piles = 14,500 meters • W Piles = 10,000 meters • Total Concrete • Concrete: 55,000 m3 • Bar Reinforcing Steel: 10,000,000 kg
Construct W2 Foundation and Column 657 m 385 m 80 m 180 m 12 m Elev. +160m Pier W2 Aprox. OG along PG Line Pier 1 Tower Pier E2
Earthwork & Piling at W2 • Structure Excavation (W2) 15,600 m3 • Structure Backfill (Bridge) 3,640 m3
Structural Concrete at W2 • Structural Concrete, Bridge Footing (SAS) 7,220 m3 • Structural Concrete, Bridge (SAS) 400 m3 • Structural Concrete, Retaining Wall 770 m3