25 CFR § 170.456 - How can a Tribe request an exception from the design standards?

§ 170.456 How can a Tribe request an exception from the design standards?

(a) A Tribe can request an exception from the required design standards from FHWA. The engineer of record (the State licensed civil engineer whose name and professional stamp appear on the PS&E or who is responsible for the overall project design) must submit written documentation with appropriate supporting data, sketches, details, and justification based on engineering analysis.

(b) FHWA can approve a project design that does not conform to the minimum criteria only after giving due consideration to all project conditions, such as:

(1) Maximum service and safety benefits for the dollar invested;

(2) Compatibility with adjacent features; and

(3) Probable time before reconstruction of the project due to changed conditions or transportation demands.