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Stc 3888;SUPERIOR over Rush Creek

Washington County, Idaho · rated Good in the 2025 National Bridge Inventory

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

Stc 3888;SUPERIOR over Rush Creek in Washington County, Idaho, 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 2009, making it 16 years old at the 2025 inventory.
It carries about 310 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 26 of the 80 inventoried bridges in Washington County rated good (32.5%); 4 (5.0%) 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


Structure	Prestressed concrete tee beam
Length	about 50 ft
Location	In Cambridge
NBI structure number	000000000028848
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US 95 over Robertson Slough	2017	7,800	Good
US 95 over Weiser River	2013	7,700	Fair
US 95 over Monroe Creek	1999	5,600	Good
US 95 over Galloway Canal	1999	5,600	Good
US 95 over Manns Creek	2004	4,400	Fair
US 95 over Sage Creek	1964	4,400	Fair