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Cimarron River Rd. over Cimarron Ditch Canal

Gunnison County, Colorado · rated Fair in the 2025 National Bridge Inventory

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

Cimarron River Rd. over Cimarron Ditch Canal in Gunnison County, Colorado, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1986, making it 39 years old at the 2025 inventory.
It carries about 156 vehicles a day (traffic count year 2008).
It is one of 72 of the 101 inventoried bridges in Gunnison County rated fair (71.3%); 5 (5.0%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Prestressed concrete multiple box beam
Length	about 28 ft
Location	32 Mi SE of Montrose
NBI structure number	020406000001106
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
SH 135 Ml over Gunnison River	1950	7,400	Fair
SH 135 Ml over Slate River	1995	7,200	Fair
SH 135 Ml over Slate River	1995	7,200	Fair
US 50 Ml over Gunnison River	1957	6,200	Fair
US 50 Ml over Gunnison River	1957	6,200	Fair
Co Rd 317 over Slate River	1983	5,823	Fair