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.
source: 89 FR 57082, July 12, 2024, unless otherwise noted.
cite as: 23 CFR 661.51