Bridge conditions in Kootenai County, Idaho
159 inventoried bridges · 7 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
The federal inventory lists 159 bridges in Kootenai County: 51 rated good, 101 fair, and 7 poor.
- 7 of the 159 bridges in Kootenai County, Idaho, are rated in poor condition (4.4%) in the 2025 National Bridge Inventory, as of .
- 51 bridges (32.1%) are rated good and 101 (63.5%) fair.
- The median Kootenai County bridge was built in 1983.
- The busiest poor-rated bridge is I 90 Wbl over Pedestrian/bike Path (built 1971), carrying about 31,250 vehicles a day.
Good 32.1% · Fair 63.5% · Poor 4.4% of 159 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 90 Wbl over Pedestrian/bike Path | 1971 | 31,250 | Poor |
| Bunco Road over Bunco Rd; US 95 Ic | 2012 | 3,800 | Poor |
| Stc 1699;CANYON Rd over Coeur Dalene River | 1936 | 680 | Poor |
| STC5751;OLD Hwy 95 over Sirr & Uprr;s.athol Op | 1929 | 540 | Poor |
| E Frontage Road over Wolf Lodge Creek | 1934 | 150 | Poor |
| Fs Route N0. 413 over N.f. Cda River | 1950 | 50 | Poor |
| S Anderson Lake Rd over Cda River;springston Br | 1955 | 40 | Poor |
Busiest bridges in the county
| 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 |
| I 90 Ebl over I 90 EB on Ramp | 2023 | 32,500 | Good |
| I 90 Wbl over I 90 EB on Ramp | 2024 | 32,500 | Good |
| I 90 Wbl over SH 41 | 2024 | 32,500 | Good |
| I 90 Ebl over SH 41 | 2023 | 32,250 | Good |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Idaho: Idaho bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.