The total cost of the privately-procured toll road portion of the SBX was $658 million. The concessionaire's financing for the project included $340 million in commercial bank debt; a $140 million loan provided by a federal credit assistance program known as the Transportation Infrastructure Finance and Innovation Act, or "TIFIA"; and $130 million in private equity. The TIFIA loan was a milestone for the federal credit program, as the loan was the first that it had made for a P3 directly to the private developer rather than the public-sector project sponsor. The bank debt for the SBX was provided by a group of 10 banks over an 18-year term. The project also received $48 million worth of donated right-of-way from four real estate developers in the corridor. Scheduled payments on the TIFIA loan were to begin in 2010, with final maturity in 2040. Both the TIFIA and bank loans were backed by toll revenues generated on the facility.

South Bay Expressway