Hemlock Road over Trout Creek
Skamania County, Washington · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Hemlock Road over Trout Creek in Skamania County, Washington, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 7 (good condition) on the 0-9 scale.
- It was built in 1975, making it 50 years old at the 2025 inventory.
- It carries about 158 vehicles a day (traffic count year 2024).
- Its listed owner is the county highway agency.
- It is one of 55 of the 120 inventoried bridges in Skamania County rated good (45.8%); 11 (9.2%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (good), but component ratings moved: superstructure 8 to 7, substructure 8 to 7.
- 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 → (45.80167, -121.93)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 7 | Good condition |
| Substructure | 8 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 220 ft |
| Location | 1.32 SW Jct 92135 |
| NBI structure number | 083639000000000 |
| 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) | 9: foundations on dry land well above flood elevations |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Washington department of transportation.
Busiest bridges in Skamania County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 14 over Rock CR | 1938 | 6,440 | Fair |
| SR 14 over Bn RR | 1978 | 5,217 | Fair |
| SR 14 over Cascade Drive | 1978 | 5,217 | Fair |
| SR 14 over Cape Horn Slide | 1930 | 4,879 | Fair |
| SR 14 over Half Bridge | 1930 | 4,879 | Poor |
| SR 14 over Duncan CR | 1926 | 4,755 | Fair |
All bridges nearby: Skamania County, WA bridge conditions · every bridge in Skamania County · Washington bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.