Denali County Bridge Report Card
Denali County scores 70 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Denali County, Alaska
Denali County has 27 bridges in the National Bridge Inventory, with 1 rated poor and 4 rated scour-critical. Its poor-condition share of 3.7% is at or below the 7.5% statewide average. Poor-condition bridges carry about 910 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Denali County a Bridge Condition Exposure Score of 70/100 (C). The county has 27 bridges in the National Bridge Inventory, including 1 in poor condition and 4 rated scour-critical. Poor-condition bridges carry about 910 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 | 3.7% | 7.4 |
| Poor-condition traffic exposure | 25 | 2.5% of measured traffic | 1.9 |
| Scour-critical bridge share | 20 | 14.8% | 20.0 |
| Average age vs national baseline | 10 | 50 years vs 48 nationally | 0.8 |
| Traffic-data completeness | 5 | 36,070 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 | 3.7% |
| State Poor-Condition Share | 7.5% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 14.8% |
| Average Bridge Age | 50 years |
| Poor-Condition Traffic Exposure | 910 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Denali County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Parks Highway over Nenana River At Rex | Poor condition + traffic exposure | Poor | 910 | 1963 |
| Parks Highway over Nenana River Park Bnd | Scour-critical foundation rating | Fair | 1,680 | 1973 |
| Parks Highway over Antler Creek | Scour-critical foundation rating | Fair | 1,380 | 1969 |
| Parks Highway over Bison Gulch | Scour-critical foundation rating | Fair | 1,380 | 1969 |
| Parks Highway over Bear Creek | Scour-critical foundation rating | Fair | 910 | 1965 |
| Parks Highway over Kingfisher Creek | High traffic | Fair | 2,670 | 1971 |
| Parks Highway over Hornet Creek | High traffic | Fair | 2,670 | 1971 |
| Parks Highway over Iceworm Gulch | High traffic | Fair | 2,670 | 1971 |
| Parks Highway over Nenana River Park Sta | High traffic | Fair | 2,340 | 1970 |
| Parks Highway over Riley Creek | High traffic | Good | 1,680 | 2015 |
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.