Dalton Highway over Atigun River No. 2
North Slope Borough, Alaska · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Dalton Highway over Atigun River No. 2 in North Slope Borough, Alaska, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2000, making it 25 years old at the 2025 inventory.
- It carries about 130 vehicles a day (traffic count year 2020).
- Its listed owner is the state highway agency.
- It is one of 10 of the 16 inventoried bridges in North Slope Borough rated good (62.5%); 1 (6.2%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (68.45176, -149.37286)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 8 | Very good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete tee beam |
| Length | about 334 ft |
| Location | Mile Point 271.3 |
| NBI structure number | 1333 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Alaska department of transportation.
Busiest bridges in North Slope Borough
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Dalton Highway over Atigun River No. 1 | 2000 | 130 | Good |
| Dalton Highway over Trevor Creek | 1982 | 130 | Fair |
| Dalton Highway over Roche Moutonnee Creek | 2017 | 130 | Good |
| Dalton Highway over Holden Creek | 2013 | 130 | Good |
| Dalton Highway over Dan Creek | 1982 | 130 | Fair |
| Dalton Highway over Kuparuk River | 1994 | 130 | Fair |
All bridges nearby: North Slope Borough, AK bridge conditions · every bridge in North Slope Borough · Alaska bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.