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South Harney Road over Silver Creek

Harney County, Oregon · rated Poor in the 2025 National Bridge Inventory

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

South Harney Road over Silver Creek in Harney County, Oregon, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1975, making it 50 years old at the 2025 inventory.
It carries about 137 vehicles a day (traffic count year 2020).
Its listed owner is the county highway agency.
It is one of 2 of the 128 inventoried bridges in Harney County rated poor (1.6%); 2 (1.6%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Timber stringer or multi-beam girder
Length	about 40 ft
Location	001 C133 Double 0 Rd
NBI structure number	25A48 C13400010
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
US 20 (hwy 007) over Silvies River	1999	2,834	Good
US 20 (hwy 007) over Willow Creek	1993	2,792	Fair
US 20 (hwy 007) over Poison Creek(susans Br)	1966	2,332	Good
US 20 (hwy 007) over Foley Slough	1999	2,332	Good
US 20 (hwy 007) over Silver Creek	1956	2,325	Fair
US 20 (hwy 007) over Miller Creek	2004	2,325	Good