Irr Bia Rte 1001 over Unnamed Tidal River
Bethel Census Area, Alaska · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Irr Bia Rte 1001 over Unnamed Tidal River in Bethel Census Area, Alaska, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 2003, making it 22 years old at the 2025 inventory.
- It carries about 25 vehicles a day (traffic count year 2019).
- It is one of 5 of the 13 inventoried bridges in Bethel Census Area rated fair (38.5%); 1 (7.7%) are rated poor.
- 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 → (59.87978, -163.16618)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Steel through truss |
| Length | about 210 ft |
| Location | Near Water Resevior |
| NBI structure number | 0000E02276T0800 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Alaska department of transportation.
Busiest bridges in Bethel Census Area
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Irr:bethel Highway over Browns Slough | 1996 | 2,380 | Good |
| Irr:ridgecrest Dr over Browns Slough | 1971 | 2,380 | Fair |
| Irr Bia Rte 6068 over Swampy Slough | 2014 | 400 | Good |
| Irr Bia Rte 1029 over Unnamed Tidal Slough | 2002 | 300 | Fair |
| Irr Bia Rte 6014 over Very Small Slough | 2014 | 200 | Good |
| Irr Bia Rte 6023 over Unnamed Tidal Slough | 2005 | 200 | Good |
All bridges nearby: Bethel Census Area, AK bridge conditions · every bridge in Bethel Census Area · Alaska bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.