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San Francisco-Oakland Bay Bridge East Span Seismic Safety Project Pre-bid Meeting February 5, 2003.

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Presentation on theme: "San Francisco-Oakland Bay Bridge East Span Seismic Safety Project Pre-bid Meeting February 5, 2003."— Presentation transcript:

1 San Francisco-Oakland Bay Bridge East Span Seismic Safety Project Pre-bid Meeting February 5, 2003

2 SFOBB East Span Seismic Safety Project SFOBB New East Span Feb 5, 2003 Pre-Bid Meeting Welcome - my name is Sarah Picker Welcome - my name is Sarah Picker Purpose : networking for business relationships to construct SFOBB East Span Purpose : networking for business relationships to construct SFOBB East Span Agenda Agenda Sign-In Please Sign-In Please

3 SFOBB East Span Seismic Safety Project Issues to discuss, from Caltrans to you collect business cards collect business cards other cost savings measures other cost savings measures handouts handouts sign-in sheets sign-in sheets

4 SFOBB East Span Seismic Safety Project Welcome Opening Remarks by Dan McElhinney Opening Remarks by Dan McElhinney

5 SFOBB East Span Seismic Safety Project Project Limits Oakland San Francisco

6 SFOBB East Span Seismic Safety Project YBISAS SKYWAY OAKLAND TOUCHDOWN Existing Bridge

7 SFOBB East Span Seismic Safety Project Yerba Buena Island T1/E2 foundations (04-0120E4) T1 E2 W2 foundation (04-0120C4) Building demolition (04A1701) YBI/SAS Contracts Transition structure (04-0120H4) SAS superstructure (04-0120F4) Retrofit/Substation (04-0120G4)

8 SFOBB East Span Seismic Safety Project YBI Substation & Viaduct Retrofit 04- 0120G4 YBI Substation & Viaduct Retrofit 04- 0120G4  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)  advertise 12/09/02  bid opens 2/25/02

9 SFOBB East Span Seismic Safety Project SAS E2/T1 Structures 04-0120E4 SAS E2/T1 Structures 04-0120E4  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  advertise Jan 21, 2003  bid open April 15, 2003

10 SFOBB East Span Seismic Safety Project SAS Superstructures 04-0120F4 SAS Superstructures 04-0120F4  a contract to construct the tower and superstructure of the Self-Anchored Suspension bridge advertise Feb 3, 2003 advertise Feb 3, 2003 bid open June 3, 2003 bid open June 3, 2003

11 SFOBB East Span Seismic Safety Project YBI Structures 04-0120H4 YBI Structures 04-0120H4  a contract to construct permanent bridges on YBI  split contract  a contract to construct the temporary detour, south-south detour

12 SFOBB East Span Seismic Safety Project Recap of SFOBB East Span Seismic Safety Project PIDP 04-012084 PIDP 04-012084 Skyway 04-012024 Skyway 04-012024 Geofill 04-012054 Geofill 04-012054 Archeological Excavation and Midden Site 04- 012074 Archeological Excavation and Midden Site 04- 012074 YBI Building Demolition(R/W) YBI Building Demolition(R/W) SAS W2 Structures 04-0120C4 SAS W2 Structures 04-0120C4 YBI Substation & Viaduct Retrofit 04-0120G4 YBI Substation & Viaduct Retrofit 04-0120G4 SAS E2/T1 Structures 04-0120E4 SAS E2/T1 Structures 04-0120E4 SAS Superstructures 04-0120F4 SAS Superstructures 04-0120F4 YBI Structures 04-0120H4 YBI Structures 04-0120H4 south south detour south south detour new midden new midden Oakland Touchdown 04- 012044 Oakland Touchdown 04- 012044 Existing Bridge Demolition 04-012094 Existing Bridge Demolition 04-012094

13 SFOBB East Span Seismic Safety Project SFOBB East Span Today’s discussions relate to the YBI Substation and Viaduct Retrofit construction contract we advertised for bid December 2002 Today’s discussions relate to the YBI Substation and Viaduct Retrofit construction contract we advertised for bid December 2002 bid opens February 25, 2003 bid opens February 25, 2003

14 SFOBB East Span Seismic Safety Project Other Introductions Will the Potential Prime Contractors in the room volunteer to raise their hands? Will the Potential Prime Contractors in the room volunteer to raise their hands? Would the DBE certified businesses raise their hands? Would the DBE certified businesses raise their hands? Would the potential DBE or small businesses raise their hands? Would the potential DBE or small businesses raise their hands?

15 San Francisco-Oakland Bay Bridge East Span Seismic Safety Project

16 SFOBB East Span Seismic Safety Project Bob Zandipour Branch Chief, Toll Bridge Program Roadway Items

17 SFOBB East Span Seismic Safety Project Yerba Buena Island T1/E2 foundations (04-0120E4) T1 E2 W2 foundation (04-0120C4) Building demolition (04A1701) YBI/SAS Contracts Transition structure (04-0120H4) SAS superstructure (04-0120F4) Retrofit/Substation (04-0120G4)

18 SFOBB East Span Seismic Safety Project 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

19 SFOBB East Span Seismic Safety Project Environmental Constraints at YBI USCG Facilities Historic Structures W2 foundation contract

20 SFOBB East Span Seismic Safety Project Special Aquatic Site - Yerba Buena Island Yerba Buena Island

21 SFOBB East Span Seismic Safety Project Retrofit/Substation Scope Construct New YBI Substation Construct New YBI Substation West Bound On Ramp Roadway Work West Bound On Ramp Roadway Work Demolish Existing Substation and Maintenance Garage Demolish Existing Substation and Maintenance Garage Viaduct Retrofit Work Viaduct Retrofit Work

22 SFOBB East Span Seismic Safety Project Yerba Buena Island  New Substation

23 SFOBB East Span Seismic Safety Project Environmental Constraints at YBI USCG Facilities Historic Structures Substation contract

24 SFOBB East Span Seismic Safety Project Substation MECHANICAL ROOM ELECTRICAL ROOM OFFICE CONTROL / COMPUTER GARAGE PARKING LOT

25 SFOBB East Span Seismic Safety Project Substation One story 468 square meter structure including One story 468 square meter structure including  Mechanical Room major equipment – 2 air compressors  Electrical Room major equipment – 14.47 kV metal clad switchgear, 1000 kV power transformer  Control/Computer Room  Office  Bathroom  Break Room  Garage  Battery Room

26 SFOBB East Span Seismic Safety Project Utility Work Relocate the following utilities Relocate the following utilities  Compressed Air  Overhead Electrical  Underground Electrical  Sanitary Sewer  Water  Drainage

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36 San Francisco-Oakland Bay Bridge East Span Seismic Safety Project

37 SFOBB East Span Seismic Safety Project Glenn Fleming Mechanical Engineer Structural Design, Toll Bridge Program Structure Items

38 SFOBB East Span Seismic Safety Project Introduction to YBI Viaduct Structure Retrofit 3 Frames of Bridge Construction Frames 1 & 2 - West Segment Retrofit Frame 3 - WB On Ramp Approach Retrofit

39 SFOBB East Span Seismic Safety Project YBI Viaduct - General Plan Frame 1 & 2 - Construct West Segment Retrofit Frame 3 - Construct WB On Ramp Approach Retrofit Frame 1 Frame 2 Frame 3 Exp JT Bent 3134 3538 3942 43 33m WB on-ramp SF WB off-ramp Tunnel

40 SFOBB East Span Seismic Safety Project Construct Concrete Seat Extensions, drill and bond dowels Typical Section Near Bent 33 Frame 1 - Typical Section Frame 1 - Typical Section Wall,typ Design Note: Floor beams are simply supported by continuous retaining walls with partial height counterfort walls. Analysis has determined floor beams are vulnerability to unseating.

41 SFOBB East Span Seismic Safety Project Top of Wall Construct Concrete Collars at counterforts and short columns Construct Seat Extensions Frame 2 - Typical Section Frame 2 - Typical Section Typical Section Near Bent 37 Design Note: Counterforts support short columns along the north edge of deck. Analysis has determined inadequate shear capacity of the short columns. Additionally, floor beams are vulnerability to unseating.

42 SFOBB East Span Seismic Safety Project Strengthen Counterfort and Short Column - Frame 2 Construct counterfort & short column concrete collars Construct counterfort & short column concrete collars Drill & pressure grout Drill & pressure grout

43 SFOBB East Span Seismic Safety Project Frame 3 - Typical Section Typical Section Bent 39 1. Strengthen (encase) north-side viaduct bent caps. 2. Strengthen (encase) columns located beneath ramp. 3. Strengthen (encase) longitudinal girder beneath ramp. 4. Strengthen (encase) and tie-down, ramp column footings. 5. Construct seat extension and bolster at ramp abutment diaphram. 6. Extend bent caps to ramp columns. 7. Construct shear wall and retaining walls. Demo and widen deck from bent 41 to just beyond bent 42 (not shown). 1 2 6 4 5 3 7 Design Note: Analysis has identified that the caps and girders are not capable of resisting the column plastic moment.

44 SFOBB East Span Seismic Safety Project Remove existing Caltrans electrical substation and garage, and reconstruct substation Remove existing Caltrans electrical substation and garage, and reconstruct substation Substation Relocation WB On-ramp to SF Bent 47 Note proximity to WB ramp

45 SFOBB East Span Seismic Safety Project Retrofit Contract Item List & Quantities

46 SFOBB East Span Seismic Safety Project San Francisco-Oakland Bay Bridge East Span Seismic Safety Project Business Enterprise Outreach Program 2003

47 SFOBB East Span Seismic Safety Project Civil Rights Olivia Fonseca Assistant Deputy Director

48 SFOBB East Span Seismic Safety Project Civil Rights for information about Doing Business with Caltrans Disadvantaged Business Enterprise (DBE) Program Small Business Services Business Enterprise Program call (916) 324-1700 or access http://www.dot.ca.gov/hq/bep Small Business/Disabled Veteran Business Enterprise Services call (916) 324-8401 or access http://www/dot.ca.gov/bep/smallbusiness.htm

49 SFOBB East Span Seismic Safety Project SFOBB East Span Replacement Contracts Advertising & Award Process Overview Presented by Kris Kuhl February 5, 2003

50 SFOBB East Span Seismic Safety Project Purpose of this Presentation Provide you with information about Caltrans contract advertising and award process for the Yerba Buena Island Substation and Viaduct Retrofit Contract of the San Francisco/Oakland Bay Bridge East Span Replacement Projects Provide you with information about Caltrans contract advertising and award process for the Yerba Buena Island Substation and Viaduct Retrofit Contract of the San Francisco/Oakland Bay Bridge East Span Replacement Projects Answer your questions Answer your questions

51 SFOBB East Span Seismic Safety Project Caltrans Mission Our mission is to improve mobility across California The Office Engineer contributes to Caltrans mission by providing construction contracts that are: The Office Engineer contributes to Caltrans mission by providing construction contracts that are:  Complete, biddable and buildable  Competitively bid  Meeting legal requirements  Open to all licensed contractors

52 SFOBB East Span Seismic Safety Project Contract 04-0120G4 Project Goals l This is a federally-funded project l The Disadvantaged Business Enterprise (DBE) goal for this project is 13 %. l Pre-Bid meeting on February 5th

53 SFOBB East Span Seismic Safety Project Award Process Award (about 30 days) Open Bids 2/25/03 Advertised Release Date 12/09/02 YBI Substation & Viaduct Retrofit Project Advertising to Award Timeframe 4 Weeks Prior to Releasing Bid Documents Advance Advertising Distribute Bid Documents to Bidders (11 weeks)

54 SFOBB East Span Seismic Safety Project Public Bid Opening Bids for this project will be opened and read in a public forum l On Tuesday, February 25 at 2 PM in Sacramento in Room 100 at 1120 N Street Immediately Following Bid Opening: l Bid amounts will be verified l Preliminary bid results posted at (916) 654-5500 and on the Internet (http://www.dot.ca.gov/hq/esc/oe/bidsopened.html) l Bid summaries will be mailed to all bidders

55 SFOBB East Span Seismic Safety Project This Contract will use A+B Bidding To determine the lowest monetary bidder, Caltrans will calculate the bid amount as follows: To determine the lowest monetary bidder, Caltrans will calculate the bid amount as follows: “A” contract items total + “B” number of contract working days bid by contractor multiplied by a dollar amount per day determined by Caltrans A+B will determine the total bid for comparison purposes only A+B will determine the total bid for comparison purposes only

56 SFOBB East Span Seismic Safety Project l We anticipate this project will take about 30 days to award after bid opening l Before awarding a contract, we verify: l Bid is responsive and complete l Bid security is provided and correct l All forms are complete and correct l Contractor is properly licensed l Verify Compliance with DBE requirements l Receipt of DBE commitment forms by 4th day l All protests addressed Award Process

57 SFOBB East Span Seismic Safety Project Other Requirements Escrow of Bid Documents Escrow of Bid Documents  The 3 low bidders are to escrow their bid documents on March 4 between 1 and 2 PM  See the Special Provisions for more information

58 SFOBB East Span Seismic Safety Project Contract Execution & Approval After Contract Award After Contract Award  Contractor has 8 days to sign and return contract for Caltrans approval  Executed Documents (returned) Contract signature page signed Payment and Performance bonds included & signed  Signed/Approved by Caltrans Begin Construction! Begin Construction!

59 SFOBB East Span Seismic Safety Project Internet Services Provided http://www.dot.ca.gov/hq/e sc/oe/ http://www.dot.ca.gov/hq/e sc/oe/ Information on Projects Released for Bid Information on Projects Released for Bid Weekly Advertisements for Bids Weekly Advertisements for Bids Electronic copies of project plans & specifications Electronic copies of project plans & specifications Bidder Assistance Bidder Assistance Bid Opening and Award Information Bid Opening and Award Information

60 SFOBB East Span Seismic Safety Project Conclusion l We thank you for your time and interest. l If you have any questions or suggestions, we would like to hear them We look forward to doing business with you soon!

61 SFOBB East Span Seismic Safety Project Breakout Group Objectives: Provide opportunities to meet and work together with other attendees Highlight the importance of safety on construction jobs Share safety related project experience


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