Dalton Highway over Fish Creek
Yukon-Koyukuk Census Area, Alaska · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Dalton Highway over Fish Creek in Yukon-Koyukuk Census Area, 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 1972 and reconstructed in 1992, making it 53 years old at the 2025 inventory.
- It carries about 140 vehicles a day (traffic count year 2020).
- Its listed owner is the state highway agency.
- It is one of 41 of the 94 inventoried bridges in Yukon-Koyukuk Census Area rated good (43.6%); 8 (8.5%) 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 July 2024, on a 24-month routine inspection cycle.
- 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 → (66.53831, -150.79398)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 120 ft |
| Location | Mile Point 113.8 |
| NBI structure number | 1255 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | U: unknown foundation, not evaluated for scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Alaska department of transportation.
Busiest bridges in Yukon-Koyukuk Census Area
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Parks Highway over North Slough Tanana Riv | 1967 | 1,710 | Fair |
| Parks Highway over Tanana River at Nenana | 1967 | 1,710 | Fair |
| Parks Highway over Little Goldstream Ck | 2021 | 1,570 | Good |
| Parks Highway over Monderosa Overhead | 2003 | 1,570 | Good |
| Parks Highway over Fish Creek | 1965 | 1,410 | Fair |
| Denali Park Road over Savage River | 1983 | 1,300 | Fair |
All bridges nearby: Yukon-Koyukuk Census Area, AK bridge conditions · every bridge in Yukon-Koyukuk Census Area · Alaska bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.