TRIBAL TRANSPORTATION PROGRAM FISCAL YEAR 

2021 

DATA REPORT TO THE 

SECRETARY OF TRANSPORTATION AND THE 

SECRETARY OF THE INTERIOR 
Fiscal Year 2021 TTP Data Report | 2  

Background

The Tribal Transportation Program (TTP) is an important resource in a Tribe’s overall infrastructure investment strategy. The TTP provides funding to address the transportation needs 

of the 574 Federally-recognized Indian Tribes and Alaska Native Villages (Tribes). Tribes use 

TTP funds for construction, road and bridge maintenance, and other transportation related 

activities. 

The Federal Highway Administration’s (FHWA) Office of Federal Lands Highway and the 

Bureau of Indian Affairs (BIA) Division of Transportation jointly administer the program in 

accordance with a memorandum of understanding. Tribes directly receive all TTP funding 

except for a 5-percent statutory set-aside which the BIA and FHWA use for program 

management and oversight (PM&O). The TTP funding that Tribes received in Fiscal Year (FY) 

2021 included: 

 The Tribal shares; 

 The 2-percent Planning funds; 

 Any TTP Bridge Program funds; and 

 Any TTP Safety funds. 

The Moving Ahead for Progress in the 21st Century 

Act (MAP-21) established the TTP in 2012. Prior to 

MAP-21, the TTP was known as the Indian 

Reservation Roads (IRR) Program, established by 

the Surface Transportation Assistance Act of 

1982. The statutory funding formula in Title 23, 

United States Code (U.S.C.), Section 202(b) 

determines the Tribal shares. Title 25, Code of 

Federal Regulations (CFR), Part 170 contains the 

policies and procedures for carrying out the TTP.

Program Management and Oversight

The PM&O funds are used to carry 

out stewardship and oversight of the 

TTP as well as other TTP activities that 

are deemed as inherently Federal 

in accordance with the appendix 

to Subpart E of 25 CFR Part 170. In 

FY 2021, $22,447,250 was made 

available to FHWA and BIA to carry 

out PM&O activities through the 

5-percent statutory set-aside. These 

funds were used for: 

ͦ Payroll and travel of the FHWA and 

BIA TTP staff; 

ͦ Office space and supplies; 

ͦ Information Technology support 

and equipment; 

ͦ Maintenance of the National Tribal 

Transportation Facility Inventory; and 

ͦ Other special TTP-specific and 

required studies, technical 

assistance and activities such as: 

ͦ Tribal Technical Assistance Program; 

ͦ Carrying out Tribal program reviews; 

ͦ Outreach on Tribal government recreation 

travel and tourism activities; and

ͦ Conducting bridge inspections on 

the Tribal and BIA bridges across 

the country. 
Fiscal Year 2021 TTP Data Report | 3  

Program Funding 

2021 Funding Levels 

The Fixing America’s Surface Transportation (FAST) Act authorized the TTP in FY 2021 at a funded level of $505 

million. After the application of an 11.1-percent reduction in funding available due to the imposition of annual 

obligation limitation contained in the Department of Transportation Appropriations Act, 2021, $448,945,000 

remained for program activities. Of this amount, $8,978,900 was designated for each of the planning and safety 

set asides, $13,468,350 was designated for the Bridge Program and $22,447,250 went toward PM&O funds. The 

net result was $395,071,600 of FY 2021 TTP funding made available to the Tribes as formula Tribal shares. Additional 

background information about the TTP is provided as Attachment A. 

FAST Act Funds Available 

for Programs $448,945,000 

FY 2021 Tribal Shares $395,071,600 

Program Management

& Oversight (administered by FHWA and BIA) $22,447,250 

Bridge Program $13,468,350 

Planning Set Aside $8,978,900 

Safety Set Aside $8,978,900

Further review of the data contained in the three-chapter reports (Attachments B, C, and D) show that in FY 2021 

the Tribes expended funds on more than 656 design or construction projects with a total estimated cost of 

approximately $2.1 billion. In addition, the reports show that in FY 2021, the Tribes leveraged and expended an 

additional $29 million in non-TTP funds on those projects as well.