Project Details

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Results Chart for Delivery Method and Financing

Delivery Method

# of Projects: 1
100% of the Results

Background informationProject Created: September 16, 2008

Project Name: Central Artery /Tunnel (CA/T)
Year in Operation: 1995
Sector: Transportation
Subsector: Bridge, Tunnel, Roads
Status: In Operation
Type: New Facility
Description: Depression of the elevated Central Artery through downtown Boston, and replacement with a tunnel under the City, a third crossing of Boston Harbor, and a new crossing over the Charles River.
Delivery Method as described in the country where it's located: Design Bid Build
Is the project still active: Yes
Comments: 8 miles of highway (160+ lane miles) of new construction, under, on, over, and through downtown Boston, all while the previous Central Artery and Charles River crossing remained open for traffic. Project was split into numerous sections for design by separate engineers, and construction by separate contractors.

Project Locations

City: Boston
State: Massachusetts
Country: United States of America

Souces of Project Support (Non-monetary)

Checkbox Checked Land: By the Commonwealth of Mass.
Checkbox Checked Environmental Clearance: By the Commonwealth of Mass.

Souces of Project Support (Monetary)

Checkbox Checked

From Public (Government) Sources to Producers: Last major segment to be funded of the US Interstate Highway system. Originally a very high percentage of costs provided by Federal government through grant. Smaller percentage from Commonwealth of Massachusetts.

Arrow Right
Checkbox Checked

Direct Cash Support

Arrow Right
Checkbox Checked

From Public Sponsor of Project - Direct Expenditure of Appropriated Public Funds: Commonwealth of Massachusetts.

Arrow Right
Checkbox Checked

From Other Public Entities - Direct Grant of Appropriated Public Funds: From US DOT, Federal Highway Administration.

Arrow Right
Checkbox Checked

Borrowed from Capital Markets: US Grant funds and Commonwealth appropriations, in part, borrowed as debt in capital markets.

Project Delivery & Finance Method

Project Delivery:
All Public Finance. Public Sponsor contracts for initial design, and separately contracts for initial construction. Public Owner operates and maintains the resulting facility.
Construction Manager At Risk Variants: Public Sponsor contracts with Construction Contractor after Design is Complete.

Procurement Approach

Project Component
Based Selection
Request for
Request for
for Bids

Term for Key Components & Forms of Contract

Project Component
Initial Design and Construction
Mandatory Statutory Form
Commonwealth forms of contract for design and for construction. 

Project Value (If and As Known)

Date of Estimated Project Value: September 16, 2008
Project Value
Hard Cost
Hard & Soft Costs
> $10 Billion US
> $10 Billion US


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