Bridge conditions in Kenai Peninsula Borough, Alaska
102 inventoried bridges · 13 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
About one in 8 bridges in Kenai Peninsula Borough is rated in poor condition: 13 of 102 on the federal inventory, one of the higher shares in Alaska.
- 13 of the 102 bridges in Kenai Peninsula Borough, Alaska, are rated in poor condition (12.7%) in the 2025 National Bridge Inventory, as of .
- 39 bridges (38.2%) are rated good and 50 (49.0%) fair.
- The median Kenai Peninsula Borough bridge was built in 1992.
- The busiest poor-rated bridge is Sterling Highway over South Fork Anchor River (built 1959), carrying about 3,490 vehicles a day.
Good 38.2% · Fair 49.0% · Poor 12.7% of 102 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 |
|---|---|---|---|
| Sterling Highway over South Fork Anchor River | 1959 | 3,490 | Poor |
| Funny River Road over Funny River | 1969 | 1,830 | Poor |
| Fourth Avenue over Seward Lagoon | 1960 | 500 | Poor |
| Irr:jakolof Bay Rd over Barabara Creek | 1968 | 110 | Poor |
| Nautical Avenue over Salmon Creek Tributary | 1970 | 100 | Poor |
| Irr Bia Rte 1026 over Unnamed Creek | 1997 | 10 | Poor |
| Irr Bia Rte 1026 over Unnamed Creed | 1997 | 10 | Poor |
| Irr Bia Rte 8PGH over Unnamed Creek | 1997 | 10 | Poor |
| No Data Entered over Palmer Creek | 1957 | 10 | Poor |
| Irr Bia Rte 8PGH over Unnamed Creek | 1997 | 5 | Poor |
| Irr Bia Rte 8PGH over Unnamed Creek | 1997 | 5 | Poor |
| Irr Bia Rte 8PGH over Unnamed Creek | 1997 | 5 | Poor |
| Irr Bia Rte 1048 over Windy Creek Right | 1997 | 2 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Sterling Highway over Kenai River (soldotna) | 2007 | 15,100 | Fair |
| Kenai Riv Crossing over Kenai River (kenai) | 1974 | 10,000 | Fair |
| Seward Highway over Resurrection River No 1 | 2003 | 6,840 | Good |
| Seward Highway over Resurrection River No 2 | 2003 | 6,840 | Good |
| Seward Highway over Resurrection River No 3 | 2003 | 6,840 | Good |
| Sterling Highway over Moose River | 1993 | 6,360 | Good |
| Sterling Highway over Kasilof River | 1966 | 5,770 | Fair |
| Sterling Highway over Crooked Creek | 2019 | 5,770 | Good |
| Seward Highway over Canyon Creek | 1997 | 4,268 | Good |
| Sterling Highway over Sterling Wildlife UP #6 | 2022 | 4,240 | Good |
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.