Coconino County Bridge Report Card
Coconino County scores 94 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Coconino County, Arizona
Coconino County has 406 bridges in the National Bridge Inventory, with 4 rated poor and 1 rated scour-critical. Its poor-condition share of 1.0% is at or below the 1.1% statewide average. Poor-condition bridges carry about 4,895 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Coconino County a Bridge Condition Exposure Score of 94/100 (A). The county has 406 bridges in the National Bridge Inventory, including 4 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 4,895 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 | 1.0% | 2.0 |
| Poor-condition traffic exposure | 25 | 0.2% of measured traffic | 0.1 |
| Scour-critical bridge share | 20 | 0.2% | 0.5 |
| Average age vs national baseline | 10 | 57 years vs 48 nationally | 3.5 |
| Traffic-data completeness | 5 | 2,757,516 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 | 1.0% |
| State Poor-Condition Share | 1.1% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.2% |
| Average Bridge Age | 57 years |
| Poor-Condition Traffic Exposure | 4,895 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Coconino County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| SR 64 over Red Lake Wash | Poor condition + traffic exposure | Poor | 4,618 | 1936 |
| Parks-wgn Wheel RD over Volunteer Wash | Poor condition + traffic exposure | Poor | 135 | 1929 |
| IRR BIA RTE N6910 over San Francisco Wash | Poor condition + traffic exposure | Poor | 92 | 1978 |
| IRR BIA RTE N6731 over Moenkopi Wash | Poor condition + traffic exposure | Poor | 50 | 1915 |
| Lees Ferry Road over Paria River | Scour-critical foundation rating | Fair | 177 | 1964 |
| SR 89a Spur over Sinclair Wash | High traffic | Good | 33,785 | 1967 |
| I 17 S 89a over Wash | High traffic | Good | 33,483 | 1940 |
| SB 40 over Rio De Flag | High traffic | Good | 33,068 | 2021 |
| Sr89a over Mcconnel Drive | High traffic | Good | 32,497 | 1967 |
| I-17 over I40 Ramp E- N | High traffic | Fair | 32,232 | 2000 |
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.