{"data":{"id":"us/25-cfr-170.455","jurisdiction":"us","citation":"25 CFR 170.455","heading":"What other factors must influence project design?","body":"The appropriate design standards must be applied to each construction project consistent with a minimum 20-year design life for highway projects and 75-year design life for highway bridges. The design of TTP projects must take into consideration:\n(a) The existing and planned future use of the facility in a manner that is conducive to safety, durability, and economy of maintenance;\n(b) The particular needs of each locality, and the environmental, scenic, historic, aesthetic, community, and other cultural values and mobility needs in a cost effective manner; and\n(c) Access and accommodation for other modes of transportation.","path":["Title 25—Indians","CHAPTER I—BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR","SUBCHAPTER H—LAND AND WATER","PART 170—TRIBAL TRANSPORTATION PROGRAM","Subpart D—Planning, Design, and Construction of Tribal Transportation Program Facilities"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-25.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:59Z","sha256":"12c7c610e9a40d4dcb8224f36d8d3b0f19b82f6580eb9765cec557948b468b3c","source_id":"us-cfr","stale":true,"prev":"us/25-cfr-170.454","next":"us/25-cfr-170.456"},"notice":"GroundRules: Original legal text. Not legal advice."}