Agate Loop Rd over Campbell Creek
Mason County, Washington · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Agate Loop Rd over Campbell Creek in Mason County, Washington, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1950 and reconstructed in 1968, making it 75 years old at the 2025 inventory.
- It carries about 257 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 4 of the 136 inventoried bridges in Mason County rated poor (2.9%); 4 (2.9%) are rated poor.
- 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 → (47.22167, -123.02833)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 4 | Poor condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Timber slab |
| Length | about 91 ft |
| Location | 0.48 N Jct Crestview Dr |
| NBI structure number | 081698000000000 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Washington department of transportation.
Busiest bridges in Mason County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 101 over Mill Creek | 1973 | 19,397 | Good |
| US 101 over Creek/rr/street | 1973 | 18,182 | Fair |
| US 101 over Matlock Rd | 1973 | 18,182 | Poor |
| SR 3 over Goldsborough Creek | 1923 | 17,285 | Fair |
| US 101 over SR 3 | 1972 | 17,050 | Fair |
| SR 3 over Deer Creek | 1957 | 15,878 | Good |
All bridges nearby: Mason County, WA bridge conditions · every bridge in Mason County · Washington bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.