Carlson Road over Duck Creek
Lincoln County, Washington · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Carlson Road over Duck Creek in Lincoln 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 1997, making it 28 years old at the 2025 inventory.
- It carries about 21 vehicles a day (traffic count year 2021).
- Its listed owner is the county highway agency.
- It is one of 102 of the 180 inventoried bridges in Lincoln County rated good (56.7%); 11 (6.1%) 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 → (47.41964, -118.48647)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 8 | Very good condition |
Bridge details
| Structure | Steel culvert |
| Length | about 35 ft |
| Location | 4.35 N SR 28 |
| NBI structure number | 086364000000000 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Washington department of transportation.
Busiest bridges in Lincoln County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-90 over Brown Road | 1967 | 10,697 | Fair |
| I-90 over Brown Road | 1967 | 10,697 | Fair |
| I-90 over Doerschlag Rd | 1968 | 10,667 | Fair |
| I-90 over Doerschlag Rd | 1968 | 10,667 | Poor |
| I-90 over SR 23 | 1967 | 10,191 | Fair |
| I-90 over SR 23 | 1967 | 10,191 | Fair |
All bridges nearby: Lincoln County, WA bridge conditions · every bridge in Lincoln County · Washington bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.