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County Road L63 over Bilk Creek

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

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

County Road L63 over Bilk Creek in San Miguel 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 1997, making it 28 years old at the 2025 inventory.
It carries about 21 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 37 of the 59 inventoried bridges in San Miguel County rated fair (62.7%); 1 (1.7%) 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 38 ft
Location	1.5 Mi SW of SH 145
NBI structure number	SMGL63-0.3-5A
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
SH 145 Ml over San Miguel River	1960	7,600	Fair
Mtn Village Blv over Pedestrian/skier	1990	5,331	Good
SH 145 Ml over Leopard Creek	2013	4,700	Good
Mtn Village Blv over Pedestrian / Skier	1985	4,499	Fair
Mtn Village Blv over Pedestrian / Skier	1990	2,195	Good
SH 145 Ml over Goodenough Gulch	1939	1,900	Fair