Bridge conditions in Copper River Census Area, Alaska
53 inventoried bridges · 3 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
The federal inventory lists 53 bridges in Copper River Census Area: 25 rated good, 25 fair, and 3 poor.
- 3 of the 53 bridges in Copper River Census Area, Alaska, are rated in poor condition (5.7%) in the 2025 National Bridge Inventory, as of .
- 25 bridges (47.2%) are rated good and 25 (47.2%) fair.
- The median Copper River Census Area bridge was built in 1980.
- The busiest poor-rated bridge is Richardson Highway over Gulkana River (built 1974), carrying about 880 vehicles a day.
Good 47.2% · Fair 47.2% · Poor 5.7% of 53 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 |
|---|---|---|---|
| Richardson Highway over Gulkana River | 1974 | 880 | Poor |
| 91 Mile Loop over Little Tok River | 1979 | 336 | Poor |
| Richardson Highway over Gunn Creek | 1954 | 200 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Richardson Highway over Gulkana River | 1974 | 880 | Poor |
| Glenn Highway over Little Nelchina River | 1973 | 820 | Good |
| Glenn Hwy Spur over Little Nelchina River | 1952 | 765 | Fair |
| Glenn Highway over Mendeltna Creek | 1977 | 760 | Fair |
| Glenn Highway over Tolsona Creek | 2013 | 710 | Good |
| Richardson Highway over Tazlina River | 1973 | 640 | Fair |
| Irr:old Align Rich over Klutina River | 1957 | 480 | Fair |
| Edgerton/mccarthy over Liberty Falls Creek | 1963 | 440 | Fair |
| Edgerton/mccarthy over Tonsina River | 1976 | 440 | Fair |
| Richardson Highway over Stuart Creek | 1981 | 440 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Alaska: Alaska 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.