Bridge conditions in Lake and Peninsula Borough, Alaska
10 inventoried bridges · 1 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Lake and Peninsula Borough has 1 bridges rated poor out of 10 inventoried, a 10.0% share that puts it well above the national rate of about 7%.
- 1 of the 10 bridges in Lake and Peninsula Borough, Alaska, are rated in poor condition (10.0%) in the 2025 National Bridge Inventory, as of .
- 5 bridges (50.0%) are rated good and 4 (40.0%) fair.
- The median Lake and Peninsula Borough bridge was built in 1985.
- The busiest poor-rated bridge is Irr:anderson Rd over Indian Creek (built 1985), carrying about 45 vehicles a day.
Good 50.0% · Fair 40.0% · Poor 10.0% of 10 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 |
|---|---|---|---|
| Irr:anderson Rd over Indian Creek | 1985 | 45 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Iliamna Village Sp over Iliamnavillagespurrd_roa | 1976 | 275 | Good |
| Iliamna Village Rd over Iliamnavillagerd_roadhou | 1976 | 143 | Good |
| Irr:airport Road over Perryville Creek | 1981 | 77 | Good |
| Irr:newhalen Road over North Fork Alexcy Creek | 1985 | 50 | Fair |
| Irr:anderson Rd over Indian Creek | 1985 | 45 | Poor |
| Irr:anderson Rd over Chignik Creek | 2002 | 45 | Fair |
| Chignik Lagoon over Packers Creek | 1986 | 41 | Fair |
| Bay Road over Rushing Creek | 1985 | 30 | Fair |
| Williamsport/pile over Timberline Creek | 1981 | 20 | Good |
| Williamsport/pile over Iliamna River | 2019 | 20 | 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.