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County Road 15B over Conundrum Creek

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

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

County Road 15B over Conundrum Creek in Pitkin County, Colorado, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 1997, making it 28 years old at the 2025 inventory.
It carries about 97 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 23 of the 65 inventoried bridges in Pitkin County rated good (35.4%); 0 (0.0%) 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

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

Bridge	Built	Vehicles/day	Condition
SH 82 Ml over Co Rd Castle Creek	1961	25,000	Fair
SH 82 Ml Ebnd over Draw	2005	22,000	Good
SH 82 ML-S/E Bound over Draw	2004	22,000	Good
SH 82 Ml Ebnd over Draw	2003	22,000	Good
SH 82 Ml over Stage Road	1994	22,000	Good
SH 82 Ml over Maroon Creek	2005	22,000	Fair