23 CFR 661.37 - What are the funding limitations on individual IRRBP projects?
The following funding provisions apply in administration of the IRRBP:
(a) An IRRBP eligible BIA and Tribally owned IRR bridge is eligible for 100 percent IRRBP funding, with a $150,000 maximum limit for PE.
(b) An IRRBP eligible non-BIA owned IRR bridge is eligible for up to 80 percent IRRBP funding, with a $150,000 maximum limit for PE and $1,000,000 maximum limit for construction. The minimum 20 percent local match will need to be identified in the application package. IRR Program construction funds received by a Tribe may be used as the local match.
(c) Requests for additional funds above the referenced thresholds 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.