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County Road 166 over Middle Bijou Creek

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

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

County Road 166 over Middle Bijou Creek in Elbert County, Colorado, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1965, making it 60 years old at the 2025 inventory.
It carries about 105 vehicles a day (traffic count year 2020).
Its listed owner is the county highway agency.
It is one of 69 of the 85 inventoried bridges in Elbert County rated fair (81.2%); 5 (5.9%) 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 tee beam
Length	about 160 ft
Location	2 Miles West of Road 125
NBI structure number	ELBT-166-4.3-05
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I 70 ML I 70 Serv over Draw	1966	11,000	Fair
I 70 Ml over Draw	1966	11,000	Fair
SH 86 Ml over Running Creek	1977	11,000	Fair
I 70 ML I 70 Serv over Draw	1958	11,000	Fair
SH 86 Ml over Gold Creek	1977	9,100	Fair
I 70 Ml Wbnd over County Road 190 Draw	1966	5,500	Fair