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County Road 12 over Marvine Creek

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

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

County Road 12 over Marvine Creek in Rio Blanco County, Colorado, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1985, making it 40 years old at the 2025 inventory.
It carries about 86 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 38 of the 56 inventoried bridges in Rio Blanco County rated fair (67.9%); 2 (3.6%) 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 30 ft
Location	2.47 Mi E of Co Rd 8
NBI structure number	RIOB-012-02.47
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
SH 64 Ml over White River	1948	3,500	Fair
SH 64 Ml over Stinking Water Creek	1982	2,400	Fair
SH 13 Ml over White River	2000	2,100	Good
SH 64 Ml over Douglas Creek	1990	1,600	Good
Tenth Street over White River	1998	1,443	Fair
SH 13 Ml over Curtis Creek	1958	1,300	Fair