County Road 17 over Interstate 5
Yolo County, California · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Road 17 over Interstate 5 in Yolo County, California, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1970, making it 55 years old at the 2025 inventory.
- It carries about 5,000 vehicles a day (traffic count year 2016).
- Its listed owner is the state highway agency.
- It is one of 12 of the 274 inventoried bridges in Yolo County rated poor (4.4%); 12 (4.4%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (poor), but component ratings moved: substructure 5 to 7.
- Its most recent inspection on record is dated March 2024, on a 24-month routine inspection cycle.
- 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 → (38.73539, -121.81886)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 4 | 4 | Poor condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 5 | 7 | Good condition |
Bridge details
| Structure | Continuous concrete multiple box beam |
| Length | about 240 ft |
| Location | 03-yol-005-r12.34 |
| NBI structure number | 22 0159 |
| Condition class | Poor |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the California department of transportation.
Busiest bridges in Yolo County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Interstate 80 over Enterprise Blvd | 1951 | 145,000 | Good |
| Interstate 80 over County Road 32 | 1962 | 135,000 | Good |
| Interstate 80 over Yolo Causeway West | 1962 | 135,000 | Good |
| Interstate 80 over Yolo Causeway East | 1963 | 135,000 | Good |
| Interstate 80 over Bike & Pedestrian Tunnel | 2001 | 128,000 | Fair |
| US Hwy 50 (I-305) over Westacre Rd | 1951 | 90,000 | Poor |
All bridges nearby: Yolo County, CA bridge conditions · every bridge in Yolo County · California bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.