Bridge conditions in Benewah County, Idaho
48 inventoried bridges · 3 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
3 of the 48 bridges the federal inventory lists in Benewah County are rated poor; the rest split 17 good and 28 fair.
- 3 of the 48 bridges in Benewah County, Idaho, are rated in poor condition (6.2%) in the 2025 National Bridge Inventory, as of .
- 17 bridges (35.4%) are rated good and 28 (58.3%) fair.
- The median Benewah County bridge was built in 1979.
- The busiest poor-rated bridge is Irr Bia Rte 11 over Little Hangman Creek (built 1977), carrying about 350 vehicles a day.
Good 35.4% · Fair 58.3% · Poor 6.2% of 48 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 |
|---|---|---|---|
| Irr Bia Rte 11 over Little Hangman Creek | 1977 | 350 | Poor |
| Charlie Creek Rd over Santa Creek | 1964 | 150 | Poor |
| Crabb Road over Hangman Creek | 1981 | 30 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SH 3 over St Maries R;st Maries Br | 1977 | 7,100 | Fair |
| US 95 over RR Roadbed/no Tracks | 1975 | 5,000 | Fair |
| SH 3 over St Maries RR | 2019 | 4,800 | Good |
| SH 3 over St Joe River | 2019 | 4,800 | Good |
| US 95 over Sheep Creek | 1975 | 3,500 | Fair |
| US 95 over Hangman Creek | 1975 | 3,500 | Fair |
| SH 5 over Smrr;uprr;plummer Crk | 2016 | 2,600 | Fair |
| SH 5 over Benewah Creek | 1996 | 2,600 | Fair |
| SH 3 over Thorn Creek | 1939 | 2,300 | Fair |
| SH 3 over Renfro Creek | 1994 | 1,700 | 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.