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County Road 3400 over Smith Fork

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

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

County Road 3400 over Smith Fork in Delta 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 5 (fair condition) on the 0-9 scale.
It was built in 1973 and reconstructed in 2011, making it 52 years old at the 2025 inventory.
It carries about 71 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 30 of the 64 inventoried bridges in Delta County rated fair (46.9%); 2 (3.1%) 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	Steel stringer or multi-beam girder
Length	about 25 ft
Location	.7 Mi S Grandview Mesa Rd
NBI structure number	DEL3400D-1.0-50
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US 50 Ml over Wells Gulch	1955	9,800	Fair
US 50 Ml over Point Creek	1977	9,300	Fair
SH 65 Ml over Gunnison River	1980	7,000	Fair
US 50 Ml Ebnd over Gunnison River	1966	6,500	Fair
US 50 Ml Wbnd over Gunnison River	1992	6,500	Fair
SH 65 Ml over Surface Creek	1957	5,700	Fair