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New NY (Tappan Zee) Bridge Replacement

New NY Bridge Replacement - Tappan Zee
Project Type: 
Roadways and Bridges
Sponsor / Borrower: 
New York State Thruway Authority (NYSTA)
Credit Agreement Status: 
TIFIA Assistance: 
$1,600 million
Primary Revenue Pledge: 
Project Revenues
Project Cost Details: 

$4.979 billion (excludes $39 million in cash on hand)

Duration / Status: 

The design-build contract was awarded to Tappan Zee Constructors in January 2013. Dredging for the new bridge began in August 2013 and both spans are expected to reach substantial completion in 2018. The north span opened in August 2017, and the south span opened in September 2018. In November 2019, the project sponsors repaid their TIFIA loan in full.

Fiscal Year Closed: 
Project Description: 

The project is the replacement of the nearly 60-year-old Tappan Zee Bridge, called the "New New York Bridge," carrying I-87/287 over the Hudson River between Westchester and Rockland Counties, approximately 20 miles north of New York City.

The New New York Bridge is being built alongside the existing bridge, and bi-directional traffic will be rerouted to the new westbound bridge span, while the new eastbound span is being completed. The demolition of the existing bridge and construction of the new eastbound span will happen concurrently at the end of the project.

The new tolled bridge is a dual-span twin bridge with eight lanes, four emergency lanes, a dedicated commuter bus lane, and a bicycle/pedestrian path. The bridge is being designed to accommodate future transit plans, which include bus rapid transit, light rail, or commuter rail.

The TIFIA loan will reduce the project’s interest cost and thereby relieve pressure on the debt capacity of the System as a whole.  The difference in interest cost between the TIFIA Loan and the alternate short-term debt the Thruway Authority incurred for this project is approximately $10 million in savings per year for over 35 years.  According to the Project, the project is expected to address structural deficiencies, safety concerns, and allow for future economic growth in the region.  For example, the project estimates annual travel time savings at $350,000. The Thruway Authority is passing these savings on to the traveling public by keeping future bridge tolls lower than without the TIFIA loan.

Funding Sources: 
  • TIFIA Loan: $1.6B
  • Thruway Capital Program: $42M
  • Pay Go Revenue During Construction: $290M
  • Toll Revenue Bonds and Notes: $3.047B
Project Delivery / Contract Method: 


Project Participants: 
Design-builder: Tappan Zee Constructors, LLC
Fluor Enterprises, Inc.
American Bridge
Granite Construction Northeast, Inc.
Traylor Bros., Inc.
Project Advisors / Consultants: 

To New York State Thruway Authority:

  • Ernst & Young Infrastructure Advisors LLC -- Financial Advisor
  • Public Resources Advisory Group - Financial Advisor
  • Acacia Financial Group - Financial Advisor
  • Harris Beach PLLC - Legal Advisor
  • Jacobs Civil Consultants - Traffic and Revenue Consultant


  • TIFIA Legal Advisor: Nixon Peabody, LLP
  • TIFIA Financial Advisor: Scully Capital Services, Inc.
Project Lender(s): 
Bondholders, USDOT TIFIA
TIFIA Credit Assistance Detail: 

Direct loan: $1.6 billion. The TIFIA loan will be repaid from NYSTA system revenues. Repaid in full November 2019.

Financial Status: 
TIFIA credit agreement was executed in December 2013. Interest payments are set to begin in 2023 with principal payments to begin in 2025; final loan maturity is expected to occur in 2053. Loan was repaid in full and retired in November 2019.

The environmental approval process took 10 months instead of the usual multi-year process because it was fast-tracked as a "High Priority Project" by the Obama Administration.

Project Contacts: 

New York State Thruway Authority
(518) 436-2700

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