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Fs Route 280 over Grouse Creek

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

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

Fs Route 280 over Grouse Creek in Bonner County, Idaho, 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 1987, making it 38 years old at the 2025 inventory.
It carries about 40 vehicles a day (traffic count year 2018).
It is one of 38 of the 104 inventoried bridges in Bonner County rated good (36.5%); 11 (10.6%) 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 stringer or multi-beam girder
Length	about 95 ft
Location	8 Miles NW of Colburn Id
NBI structure number	010406000000201
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 Pend Oreille R;sandpoint	1981	18,500	Fair
US 2 over Sand Creek	1973	18,500	Good
US 95 over US 95NB Off R;sand Creek	2012	12,500	Fair
US 95 over Bridge Street	2012	12,500	Fair
US 2 over Pend Oreille R;oldtown B	1988	11,500	Fair
US 95 over Cocolalla Creek	2017	11,500	Good