23 CFR § 661.51 - Can TTFBP funds be used for the approach roadway to a bridge?
---
identifier: "/us/cfr/t23/s661.51"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "23 CFR § 661.51 - Can TTFBP funds be used for the approach roadway to a bridge?"
title_number: 23
title_name: "Highways"
section_number: "661.51"
section_name: "Can TTFBP funds be used for the approach roadway to a bridge?"
chapter_name: "FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "G"
subchapter_name: "ENGINEERING AND TRAFFIC OPERATIONS"
part_number: "661"
part_name: "TRIBAL TRANSPORTATION FACILITY BRIDGE PROGRAM (TTFBP)"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "23 U.S.C. 120(j) and (k), 202, and 315; 49 CFR 1.81, 1.84, 1.85; 23 CFR part 490, subpart D."
regulatory_source: "89 FR 57082, July 12, 2024, unless otherwise noted."
cfr_part: "661"
---
# 661.51 Can TTFBP funds be used for the approach roadway to a bridge?
Yes, costs associated with approach roadway work, as defined in § 661.5 are eligible. Long approach fills, causeways, connecting roadways, interchanges, ramps, and other extensive earth structures, when constructed beyond an attainable touchdown point, are not eligible uses of TTFBP funds.