North Fork Rd. over Ahtanum Creek N. Fork
Yakima County, Washington · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- North Fork Rd. over Ahtanum Creek N. Fork in Yakima County, Washington, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1953, making it 72 years old at the 2025 inventory.
- It carries about 328 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 31 of the 557 inventoried bridges in Yakima County rated poor (5.6%); 31 (5.6%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated November 2022, on a 24-month routine inspection cycle.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (46.54833, -120.95667)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 4 | 4 | Poor condition |
| Superstructure | 4 | 4 | Poor condition |
| Substructure | 4 | 4 | Poor condition |
Bridge details
| Structure | Timber stringer or multi-beam girder |
| Length | about 26 ft |
| Location | 05.62 NW Ahtanum Rd |
| NBI structure number | 081004000000000 |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | November 2022 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Washington department of transportation.
Busiest bridges in Yakima County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Terrace Heights Dr over 18TH Street | 1979 | 28,500 | Fair |
| I-82 over Beech St | 1962 | 25,909 | Good |
| I-82 over Beech St | 1962 | 25,909 | Good |
| I-82 over Overflow Channel | 1960 | 25,406 | Fair |
| I-82 over Overflow Channel | 1960 | 25,406 | Fair |
| I-82 over Np Ry Moxee | 1961 | 25,406 | Poor |
All bridges nearby: Yakima County, WA bridge conditions · every bridge in Yakima County · Washington bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.