23 CFR § 661.37 - What are the funding limitations on an individual TTF bridge project?
---
identifier: "/us/cfr/t23/s661.37"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "23 CFR § 661.37 - What are the funding limitations on an individual TTF bridge project?"
title_number: 23
title_name: "Highways"
section_number: "661.37"
section_name: "What are the funding limitations on an individual TTF bridge project?"
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"
---
# 661.37 What are the funding limitations on an individual TTF bridge project?
The following funding provisions apply in administration of the TTFBP:
(a) There are no funding limitations on an individual TTF bridge application, but the PE estimated cost will be based on the following fee scale:
*Estimated Construction Cost:*
Up to $1,000,000—Use up to 20% for PE
$1,000,000 to $5,000,000—Use up to 15%-20% for PE
$5,000,000 to $10,000,000—Use up to 10%-15% for PE
Over $10,000,000—Use up to 10% for PE
(b) Requests for additional funds for PE or construction may be submitted along with proper justification to FHWA for consideration. The request will be considered on a case-by-case basis. There is no guarantee for the approval of the request for additional funds.