Irr:main Street over Big Contact Creek
North Slope Borough, Alaska · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Irr:main Street over Big Contact Creek 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 9 (excellent condition) on the 0-9 scale.
- It was built in 2013, making it 12 years old at the 2025 inventory.
- It carries about 50 vehicles a day (traffic count year 2018).
- Its listed owner is a city or municipal 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 → (68.14312, -151.73327)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 9 | Excellent condition |
| Superstructure | 9 | Excellent condition |
| Substructure | 9 | Excellent condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 101 ft |
| Location | Mile Point 0.5 |
| NBI structure number | 1987 |
| 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. 2 | 2000 | 130 | Good |
| 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 |
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.