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Fs Route No. 448 over Round Prairie Creek

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

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

Fs Route No. 448 over Round Prairie Creek in Boundary 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 1978, making it 47 years old at the 2025 inventory.
It carries about 40 vehicles a day (traffic count year 2018).
It is one of 26 of the 84 inventoried bridges in Boundary County rated good (31.0%); 11 (13.1%) 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	Timber stringer or multi-beam girder
Length	about 36 ft
Location	Round Prairie Creek
NBI structure number	010407000000016
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 Bnrr;arizona St.	1972	13,000	Fair
US 95 over Kootenai R;uprr;bnnrs Fy	1984	13,000	Fair
US 95 over Deep Cr;bnrr;uprr;naples	1965	7,300	Fair
US 95 over Deep Creek	2024	6,600	Good
US 95 over Trail Creek	1965	6,300	Fair
US 2 over Uprr;moyie Springs Op	1965	2,600	Fair