Environmental Groups

1
San Francisco-Oakland Bay BridgeEast Span
Seismic Safety Project Contractor
Outreach January 7 8, 2003
2
SFOBB New East Span January 2003 Business
Enterprise Outreach

• Welcome - my name is Sarah Picker
• Purpose networking for business relationships
  to construct SFOBB East Span
• Agenda
• Sign-In Please
• Survey - day or night meetings

3
Show of handsHow did you find out about the
outreach?Newspaper, letter?
4
Welcome

• Dan McElhinney, District 4 Chief Deputy Toll
  Bridge Program
• Opening Remarks

5
Project Limits
San Francisco
Oakland
Project Limits
6

OAKLAND TOUCHDOWN
SKYWAY
YBI
SAS
Existing Bridge
7
T1/E2 foundations (04-0120E4)
Transition structure (04-0120H4)
E2
Retrofit/Substation (04-0120G4)
T1
SAS superstructure (04-0120F4)
W2 foundation (04-0120C4)
Building demolition (04A1701)
Yerba Buena Island
YBI/SAS Contracts
8

• YBI Building Demolition(R/W) 04A1701
• a contract to remove three USCG buildings and one
  state building executed as a right-of-way service
  contract

9

• 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)

10

• 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

11

• SAS Superstructures 04-0120F4
• a contract to construct the tower and
  superstructure of the Self-Anchored Suspension
  bridge

12

• YBI Structures 04-0120H4
• a contract to construct the temporary detour and
  permanent bridges on YBI

13
T1/E2 foundations (04-0120E4)
Transition structure (04-0120H4)
E2
Retrofit/Substation (04-0120G4)
T1
SAS superstructure (04-0120F4)
W2 foundation (04-0120C4)
Building demolition (04A1701)
Yerba Buena Island
YBI/SAS Contracts
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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

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Recap of SFOBB East Span Seismic Safety Project

• YBI Building Demolition(R/W)
• SAS W2 Structures 04-0120C4
• YBI Substation Viaduct Retrofit 04-0120G4
• SAS E2/T1 Structures 04-0120E4
• SAS Superstructures 04-0120F4
• YBI Structures 04-0120H4

16
Recap of SFOBB East Span Seismic Safety Project

• Oakland Touchdown 04-012044
• Existing Bridge Demolition 04-012094

17
SFOBB East Span

• Tonights discussions relate to the YBI
  Substation and Viaduct Retrofit construction
  contract we advertised for bid December 2002
• bid opens February 25, 2003

18
What is the schedule?

• SAS E2/T1 04-0120E4 will advertise January 21,
  2003 bids
  open May 20, 2003
• SAS Superstructures 04-0120F4 will advertise
  February 3, 2003 bids open
  July 9, 2003
• YBI Superstructure advertise TBA

19
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?

20
San Francisco-Oakland Bay BridgeEast Span
Seismic Safety Project
21
Roadway Items
Bob Zandipour Branch Chief, Toll Bridge Program
22
T1/E2 foundations (04-0120E4)
Transition structure (04-0120H4)
E2
Retrofit/Substation (04-0120G4)
T1
SAS superstructure (04-0120F4)
W2 foundation (04-0120C4)
Building demolition (04A1701)
Yerba Buena Island
YBI/SAS Contracts
23
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

24
Environmental Constraints at YBI
Historic Structures
W2 foundation contract
W2 foundation contract
USCG Facilities
25
Special Aquatic Site - Yerba Buena Island
Yerba Buena Island
26
Retrofit/Substation Scope

• Construct New YBI Substation
• West Bound On Ramp Roadway Work
• Demolish Existing Substation and Maintenance
  Garage
• Viaduct Retrofit Work

27
Yerba Buena Island

• New Substation

28
Environmental Constraints at YBI
Historic Structures
Substation contract
USCG Facilities
29
Substation
CONTROL / COMPUTER
GARAGE
ELECTRICAL ROOM
OFFICE
PARKING LOT
MECHANICAL ROOM
30
Substation

• 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

31
Utility Work

• Relocate the following utilities
• Compressed Air
• Overhead Electrical
• Underground Electrical
• Sanitary Sewer
• Water
• Drainage

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San Francisco-Oakland Bay BridgeEast Span
Seismic Safety Project
42
Structure Items
Glenn Fleming Mechanical Engineer Structural
Design, Toll Bridge Program
43
Introduction to YBI Viaduct Structure Retrofit

• 3 Frames of Bridge Construction
• Frames 1 2 - West Segment Retrofit
• Frame 3 - WB On Ramp Approach Retrofit

44
YBI Viaduct - General PlanFrame 1 2 -
Construct West Segment Retrofit Frame 3 -
Construct WB On Ramp Approach Retrofit
33m
33m
33m
Exp JT
31
34 35
38 39
42 43
Bent
WB on-ramp
Frame 1 Frame 2 Frame 3
SF
Tunnel
WB off-ramp
45
Frame 1 - Typical Section

• Construct Concrete
• Seat Extensions,
• drill and bond dowels

Wall,typ
Typical Section Near Bent 33
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.
46
Frame 2 - Typical Section

• Construct Concrete Collars at counterforts and
  short columns
• Construct Seat Extensions

Top of Wall
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.
47
Strengthen Counterfort and Short Column - Frame 2

• Construct counterfort short column concrete
  collars
• Drill pressure grout

48
Frame 3 - Typical Section
3
5
6
1
7
2
Typical Section Bent 39
4

• 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).

Design Note Analysis has identified that the
caps and girders are not capable of resisting the
column plastic moment.
49
Substation Relocation

• Remove existing Caltrans electrical substation
  and garage, and reconstruct substation

Bent 47

• Note proximity to WB ramp

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Retrofit Contract Item List Quantities
51
San Francisco-Oakland Bay BridgeEast Span
Seismic Safety Project
Business Enterprise Outreach Program
2003
52
Civil Rights
Phyllis Thompson San Francisco Oakland Bay
Bridge Business Enterprise Coordinator
53
Civil Rights

• for information about
• Doing Business with Caltrans Disadvantaged
  Business Enterprise (DBE) Program
• Small Business Services
• Business Enterprise Program
• call [phone] or access http//www.dot.ca.go
  v/hq/bep
• Small Business/Disabled Veteran Business
  Enterprise Services
• call [phone] or access http//www/dot.ca.go
  v/bep/smallbusiness.htm

54
SFOBB East Span Replacement Contracts Advertising
Award Process Overview

• Presented by
• Jeff Reeds Christine Inouye
• January 7 8, 2003

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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
• Answer your questions

56
Caltrans Mission

• Our mission is to improve mobility across
  California
• 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

57
Contract 04-0120G4 Project Goals

• This is a federally-funded project
• The Disadvantaged Business Enterprise (DBE) goal
  for this project is 13 .
• Pre-Bid meeting on February 5th

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YBI Substation Viaduct Retrofit Project
Advertising to Award Timeframe
Advertised Release Date 12/09/02
Advance Advertising
4 Weeks Prior to Releasing Bid Documents
Distribute Bid Documents to Bidders (11 weeks)
Award
Open Bids 2/25/03
Process Award (about 30 days)
59
Public Bid Opening

• Bids for this project will be opened and read in
  a public forum
• On Tuesday, February 25 at 2 PM in Sacramento in
  Room 100 at 1120 N Street
• Immediately Following Bid Opening
• Bid amounts will be verified
• Preliminary bid results posted at [phone]
  and on the Internet (http//www.dot.ca.gov/hq/esc/
  oe/bidsopened.html)
• Bid summaries will be mailed to all bidders

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This Contract will use AB Bidding

• 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
• AB will determine the total bid for comparison
  purposes only

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Award Process

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

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Other Requirements

• 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

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Contract Execution Approval

• 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!

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Internet Services Provided

• http//www.dot.ca.gov/hq/esc/oe/
• Information on Projects Released for Bid
• Weekly Advertisements for Bids
• Electronic copies of project plans
  specifications
• Bidder Assistance
• Bid Opening and Award Information

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Conclusion

• We thank you for your time and interest.
• If you have any questions or suggestions, we
  would like to hear them

We look forward to doing business with you
soon!