image of the Eagle Falls Memorial Bridge spanning the Missouri River, located near Great Falls, MT

Bridge near Trout Creek, MT, that carries Blue Slide Road over Vermillion River.
Background scenic view of the Cabinet Mountains.

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FHWA Load Rating

FHWA Memorandums

Load Rating of Specialized Hauling Vehicles (11/15/2013) | Question and Answers
Load Rating for the FAST Act’s Emergency Vehicles (11/3/2016) | Question and Answers