Irr:lost River Rd over Lost River
Yakutat City and Borough, Alaska · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Irr:lost River Rd over Lost River in Yakutat City and Borough, Alaska, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1985, making it 40 years old at the 2025 inventory.
- It carries about 100 vehicles a day (traffic count year 2020).
- Its listed owner is the state highway agency.
- It is one of 6 of the 16 inventoried bridges in Yakutat City and Borough rated fair (37.5%); 3 (18.8%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated May 2024, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (59.47357, -139.60963)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Prestressed concrete tee beam |
| Length | about 100 ft |
| Location | Mile Point 5.9 |
| NBI structure number | 1196 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Alaska department of transportation.
Busiest bridges in Yakutat City and Borough
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Airport Rd Yakutat over Ophir Creek | 1998 | 960 | Good |
| Sandy Beach Road over Yakutat City Dock | 1981 | 926 | Fair |
| Irr:ocean Cape Rd over Ankau Slough | 1961 | 457 | Poor |
| Dangerous River Rd over Situk River | 1966 | 40 | Fair |
| Dangerous River Rd over Antlen River | 1974 | 40 | Good |
| Dangerous River Rd over Ahrnklin River | 1974 | 40 | Fair |
All bridges nearby: Yakutat City and Borough, AK bridge conditions · every bridge in Yakutat City and Borough · Alaska bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.