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US 40 Ml over Troublesome Creek

Grand County, Colorado · rated Good in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

US 40 Ml over Troublesome Creek in Grand County, Colorado, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 7 (good condition) on the 0-9 scale.
It was built in 1996, making it 29 years old at the 2025 inventory.
It carries about 2,400 vehicles a day (traffic count year 2020).
Its listed owner is the state highway agency.
It is one of 37 of the 88 inventoried bridges in Grand County rated good (42.0%); 5 (5.7%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete multiple box beam
Length	about 109 ft
Location	4.62 Mi E of Jct SH9
NBI structure number	D-11-Q
Condition class	Good

Source: FHWA National Bridge Inventory, 2025 data as reported by the Colorado department of transportation.

Bridge	Built	Vehicles/day	Condition
US 40 Ml over UP RR	1985	11,000	Fair
US 40 Ml over Fraser River	1985	11,000	Fair
US 40 Ml over Vasquez Creek	1938	11,000	Fair
US 40 Ml over Crooked Creek	1941	11,000	Poor
US 40 Ml over Fraser River	1942	11,000	Fair
US 40 Ml over Pedestrian Underpass	2004	11,000	Good