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The Tribal Technical Assistance Program is part of a nationwide effort sponsored by the Federal Highway Administration and the Bureau of Indian Affairs.
The intention of TTAP is to relate the latest technology and information on tribal roads and bridges, tourism and recreation, and related economic development to tribal transportation and planning personnel.
TTAP provides technology transfer through training workshops, a quarterly newsletter, and the operation of free publication and videotape training libraries.

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IRR Files & Documents

Follow the links below to access Guides, Forms, and Samples for the IRR Inventory Submittal Process

Go to this DOI site for the current IRR Inventory data in a read only format.

Click here For the ITIMS (Integrated Transportation Information Management System) Website headlined at the recent RIFDS Training.

Forms and Guides

State Congressional District Maps

Road Classification Samples

(Files may have more than one picture)

IRR Maintenance Files

Attachment Samples

Attachment Templates

Sample Transportation Plans

IRR High Priority Projects