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South Shield Drive over Yampa River

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

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

South Shield Drive over Yampa River in Routt County, Colorado, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 7 (good condition) on the 0-9 scale.
It was built in 1993, making it 32 years old at the 2025 inventory.
It carries about 2,672 vehicles a day (traffic count year 2023).
Its listed owner is a city or municipal highway agency.
It is one of 42 of the 97 inventoried bridges in Routt County rated good (43.3%); 7 (7.2%) 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


Structure	Continuous prestressed concrete stringer or multi-beam girder
Length	about 333 ft
Location	0.3 Mi S of US Hwy 40
NBI structure number	1250.10-A
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US 40 Ml over Fish Creek	1980	28,000	Fair
US 40 Ml over Mt Werner Road	1980	23,000	Fair
US 40 Ml over Walton Creek	1990	9,200	Fair
US 40 Ml over Shelton Ditch	1954	6,400	Poor
Fish Crk Falls Rd over Spring Creek	1973	5,949	Fair
US 40 Ml over E Fork Elk River	2013	5,700	Good