Tribal Transportation Program / Bridges (TTP)
The Tribal Transportation Program (TTP) was established in 23 U.S.C. 202 to address the transportation needs of Tribal governments throughout the United States. The purpose of the program is to provide safe and adequate transportation and public road access to and within Indian reservations, Indian lands, and Alaska Native Village communities. A prime objective of the TTP is to contribute to the economic development, self-determination, and employment of Indians and Native Americans.
The Tribal Transportation Program is funded by contract authority from the Highway Trust Fund. Funds are subject to the overall Federal-aid obligation limitation. Funds will be allocated among the Tribes using a new statutory formula based on tribal population, road mileage and average tribal shares of the former Tribal Transportation Allocation Methodology (TTAM) formula.
As implementation of the TTP under MAP-21 progresses, more information will be added to this site and to the Federal Highway Administration MAP-21 website.