NE 172ND Avenue over East Fork Lewis River
Clark County, Washington · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- NE 172ND Avenue over East Fork Lewis River in Clark County, Washington, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1999, making it 26 years old at the 2025 inventory.
- It carries about 3,494 vehicles a day (traffic count year 2017).
- Its listed owner is the county highway agency.
- It is one of 91 of the 219 inventoried bridges in Clark County rated fair (41.6%); 10 (4.6%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (45.83406, -122.49432)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete deck arch |
| Length | about 277 ft |
| Location | Jct Lucia Falls Rd |
| NBI structure number | 086490000000000 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Washington department of transportation.
Busiest bridges in Clark County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-205 over SR 14 Bnrr | 1982 | 160,000 | Fair |
| SR 500 over NE Gher Rd & NE 112 Ave | 2004 | 65,414 | Fair |
| I-5 over Columbia River | 1916 | 65,013 | Fair |
| I-5 over Columbia River | 1958 | 65,013 | Fair |
| I-205 over Burton Rd | 1974 | 59,900 | Fair |
| I-205 over Burton Rd | 1974 | 59,900 | Fair |
All bridges nearby: Clark County, WA bridge conditions · every bridge in Clark County · Washington bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.