Twin Bridges Road over Yakima River
Benton County, Washington · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Twin Bridges Road over Yakima River in Benton County, Washington, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1997, making it 28 years old at the 2025 inventory.
- It carries about 2,465 vehicles a day (traffic count year 2016).
- Its listed owner is the county highway agency.
- It is one of 95 of the 167 inventoried bridges in Benton County rated good (56.9%); 11 (6.6%) 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 June 2023, 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 → (46.326, -119.37111)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete tee beam |
| Length | about 200 ft |
| Location | 300 SW of SNIVELY ROAD |
| NBI structure number | 086722000000000 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 2023 |
| 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 Benton County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 240 over Wetland | 2007 | 39,496 | Good |
| I-182 over Columbia R City Streets | 1984 | 36,943 | Fair |
| I-182 over Columbia River | 1984 | 36,943 | Fair |
| C.c.b. over C.i.d. Canal | 1970 | 36,358 | Fair |
| US 395 over Columbia R-riverside Dr | 1954 | 34,219 | Fair |
| I-182 over Yakima River | 1983 | 30,551 | Good |
All bridges nearby: Benton County, WA bridge conditions · every bridge in Benton County · Washington bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.