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Fs Route No. 437 over Hayden Creek

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

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

Fs Route No. 437 over Hayden Creek in Kootenai County, Idaho, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1953, making it 72 years old at the 2025 inventory.
It carries about 50 vehicles a day.
It is one of 101 of the 159 inventoried bridges in Kootenai County rated fair (63.5%); 7 (4.4%) 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	Timber stringer or multi-beam girder
Length	about 26 ft
Location	Hayden Creek
NBI structure number	010403000000014
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I 90 Eb-wb;rmp Cd over Bnrr;post Falls Op	1977	62,000	Fair
SMA7235;NW Blvd over I 90 Eb-wb;nw Blvd Ic	2001	40,000	Fair
US 95 over I 90 E-wb;lincoln Way Ic	1960	33,500	Fair
I 90 Wbl over SH 41	2024	32,500	Good
I 90 Ebl over I 90 EB Off Ramp	2023	32,500	Good
I 90 Wbl over I 90 EB Off Ramp	2024	32,500	Good