23 CFR § 661.51
Can IRRBP funds be used for the approach roadway to a bridge?
May 21, 2020
(a) Yes, costs associated with approach roadway work, as defined in §661.5 are eligible.
(b) 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 IRRBP funds.