Chiwawa River Rd. over Alder Creek
Chelan County, Washington · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Chiwawa River Rd. over Alder Creek in Chelan County, Washington, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2007, making it 18 years old at the 2025 inventory.
- It carries about 108 vehicles a day (traffic count year 2021).
- Its listed owner is the county highway agency.
- It is one of 80 of the 148 inventoried bridges in Chelan County rated good (54.1%); 12 (8.1%) 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 September 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 → (47.84865, -120.65964)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 8 | 8 | Very good condition |
Bridge details
| Structure | Steel culvert |
| Length | about 27 ft |
| Location | 3.3 W Jct Chiwawa Loop Rd |
| NBI structure number | 088033000000000 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Washington department of transportation.
Busiest bridges in Chelan County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 285 over S Wenatchee Ave | 1973 | 48,107 | Poor |
| SR 285 over Wenatchee River & BNSF | 1933 | 20,059 | Fair |
| SR 285 over Wenatchee River & Gnrr | 1954 | 20,059 | Fair |
| US 2 over Wenatchee River | 1993 | 15,142 | Good |
| US 2 over Blewett Cutoff Rd | 2008 | 14,792 | Good |
| SR 285 over Penny Rd | 1996 | 13,465 | Good |
All bridges nearby: Chelan County, WA bridge conditions · every bridge in Chelan County · Washington bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.