Parallel Thimble Shoal Tunnel Project Chesapeake Bay Bridge and Tunnel
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Existing Crossover
#2 Island
Existing Thimble Shoal Channel Tunnel (NB Traffic)
#1 Island
Fishing Pier
Proposed Parallel Thimble Shoal Tunnel (SB Traffic)
Approximate Edge of Existing Island
Parallel Thimble Shoal Tunnel Project Location
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Scoring Immersed Tube Tunnel
Section 2 - General Qualifications
50 points
Section 4 - Immersed Tube Tunnel Qualifications
50 points
Total Score: 100 points maximum
Bored Tunnel Method
Section 2 - General Qualifications
50 points
Section 3 - Bored Tunnel Qualifications
50 points
Total Score: 100 points maximum
• Evaluation and scoring independently for each tunneling method. • The highest score, regardless of method, for an Offeror used to
determine the short-list • Teams able to submit qualifications for both methods • Teams that qualified for both methods, only allowed to submit one
Technical and Price Proposal
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Short-Listed Teams Design-Build Team ITT TBM
Archer Western-Vinci Construction (AWVC) X X
Bouygues TP / Traylor / Manson (BTM) X X
Dragados USA and Schiavone Construction (CTJV) X
Skanska, Kiewit, Weeks (SKW) X
• Draft DB ATC RFP founded on VA’s P.P.T.A. issued August 11, 2015
• Final RFP issued February 1, 2016
• Preliminary Technical Proposals submitted March 1, 2016
• Final Tech. and Price Proposals submitted April 29, 2016
• Revised Technical Proposals submitted July 12, 2016
• Revised Price Proposals submitted July 15, 2016
• Award to CTJV on July 27, 2016 for $ 755,987,318
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Rotating cutter head
The machine is operated from the control room
Pressure is maintained in the cutting chamber
Rotating arm adds pre-cast concrete Tunnel segments to form a ring
Pre-cast concrete segments delivered to rotating arm
Excavated earth removed by conveyor belt
Hydraulic rams push against newly-placed concrete segments to drive machine forward
Approximate TBM diameter is 42’
Tunnel Boring Machine
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Project Timeline
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Project Funding Source Allocation
CBBT General Fund $ 172,643,799
CBBT Revenue Bonds 363,618,253
USDOT TIFIA Loan 338,528,672
VTIB Loan 50,000,000
Total Cost w/Contingency $ 924,790,724
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PARALLEL THIMBLE SHOAL CHANNEL TUNNEL For up-to-date information, news releases, project documents, and more as it pertains to the Parallel Thimble Shoal Channel Tunnel Project, please visit the CBBT’s website at www.cbbt.com/parallelthimbleshoaltunnel/
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