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United States Department of Transportation United States Department of Transportation

Mid-Coast Corridor

A map of the existing and proposed Mid-Coast Corridor
Project Type
Public Transit
Financing Type
Credit Agreement Executed
San Diego Association of Governments (SANDAG)
Project Description

The Mid-Coast Corridor Project is a proposed extension of San Diego’s existing light rail infrastructure. Once completed, the Project would connect the Old Town Transit Center in downtown San Diego to the University City area to the north, via the Blue line trolley. This would connect several universities, hospitals, and technology companies to the city center.

The extension consists of 10.9 miles of additional double track as well as nine new stations (four at-grade and five elevated), five park-and-ride facilities with 1,070 spaces, 14 new and two upgraded traction power substations, and 36 new low-floor light transit vehicles. The Project will follow an existing commuter heavy-rail line and run parallel to the I-5 State Route 52 interchange.

Project Details
TIFIA Assistance
Primary Revenue Pledge
Sales Tax Revenues
Project Cost
Fiscal Year Closed
Construction underway, with substantial completion expected in December 2021.
Funding Sources
Full Funding Grant Agreement: $1.043 billion

TIFIA Loan: $537.5 million

TransNet Financing: $355.0 million
Project Delivery/Contract Method
Construction Manager/General Contractor (CM/GC)
Project Advisers/Consultants

Financial Advisor – Public Financial Management

Legal Advisor – Norton Rose Fulbright

To USDOT Build America Bureau:

TIFIA Financial Advisor – Scully Capital

TIFIA Legal Advisor – Nixon Peabody L.L.P.
Project Lender
Credit Assistance Detail
Direct loan: $537.5 million. The TIFIA loan is secured by pledged TransNet program sales tax revenues.
Financial Status
TIFIA credit agreement was signed on June 27, 2017, and the loan is expected to mature in 2045.
Application Details
San Diego Association of Governments (SANDAG)
LOI Fiscal Year Received
LOI Received Date
Initial Eligibility Review
Review Complete
Creditworthiness Review
Under review
Estimated Project Cost
TIFIA Request
Instrument Type
Direct Loan