Payette County Bridge Report Card
Payette County scores 71 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Payette County, Idaho
Payette County has 65 bridges in the National Bridge Inventory, with 3 rated poor and 5 rated scour-critical. Its poor-condition share of 4.6% is at or below the 5.4% statewide average. Poor-condition bridges carry about 6,630 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Payette County a Bridge Condition Exposure Score of 71/100 (C). The county has 65 bridges in the National Bridge Inventory, including 3 in poor condition and 5 rated scour-critical. Poor-condition bridges carry about 6,630 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.
How the Score Breaks Down
| Factor | Weight | County Value | Penalty |
|---|---|---|---|
| Poor-condition bridge share | 40 | 4.6% | 9.2 |
| Poor-condition traffic exposure | 25 | 2.9% of measured traffic | 2.2 |
| Scour-critical bridge share | 20 | 7.7% | 15.4 |
| Average age vs national baseline | 10 | 55 years vs 48 nationally | 2.7 |
| Traffic-data completeness | 5 | 231,235 measured daily crossings | 0.0 |
Score = 100 minus weighted penalties. The score is a comparative research signal, not an official safety rating. Read the full methodology.
County Comparisons
| County Poor-Condition Share | 4.6% |
| State Poor-Condition Share | 5.4% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 7.7% |
| Average Bridge Age | 55 years |
| Poor-Condition Traffic Exposure | 6,630 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Payette County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| SH 52 over Snake River;payette Br. | Poor condition + traffic exposure | Poor | 5,100 | 1953 |
| Sma 8803;6th AVE over Payette River | Poor condition + traffic exposure | Poor | 1,400 | 1959 |
| Bluff Road over Big Willow Creek | Poor condition + traffic exposure | Poor | 130 | 1962 |
| US 30 Ebl Spur over Snake R;fruitland Bridge | Scour-critical foundation rating | Good | 24,500 | 1967 |
| US 95 over Payette River | Scour-critical foundation rating | Fair | 19,500 | 1968 |
| Stc3854;blk Brdg over Payette River | Scour-critical foundation rating | Fair | 650 | 1963 |
| Stc 3830;freemont over Payette River | Scour-critical foundation rating | Fair | 480 | 1961 |
| I 84 Ebl over SE 9th Avenue Gs | High traffic | Good | 15,500 | 1961 |
| I 84 Wbl over SE 9th Avenue Gs | High traffic | Good | 15,500 | 1961 |
| I 84 Ebl over D Line Canal | High traffic | Good | 15,500 | 1961 |
Important safety note
Poor condition does not mean a bridge is unsafe. It means at least one major component has significant deterioration and the bridge is a priority for maintenance, repair, or replacement. Bridges judged unsafe are closed or restricted by transportation agencies.