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Slickpoo Road over Mission Cr;m.wittman Br

Nez Perce County, Idaho · rated Fair in the 2025 National Bridge Inventory

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

Slickpoo Road over Mission Cr;m.wittman Br in Nez Perce County, Idaho, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1987 and reconstructed in 2011, making it 38 years old at the 2025 inventory.
It carries about 50 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 49 of the 72 inventoried bridges in Nez Perce County rated fair (68.1%); 3 (4.2%) 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 25 ft
Location	3.8 S. 1.6 W. Culdesac
NBI structure number	000000000029940
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
SMA7344;BRYDEN Cyn over Snake R;high/southway Br	1982	22,000	Fair
US 12 over US 12;SNAKE River	1939	21,000	Fair
US 12 over Clearwater River;bnrr	1951	21,000	Fair
US 95 over Hatwai Creek	1979	13,000	Fair
US 95 over US 12;US 12-95 Ic	1964	11,000	Fair
US 12 over Aprroach Rd;catholic CR.	1968	8,400	Good