River Road over Kern River Park
Kern County, California · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- River Road over Kern River Park in Kern County, California, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1934, making it 91 years old at the 2025 inventory.
- It carries about 450 vehicles a day (traffic count year 2016).
- Its listed owner is the county highway agency.
- It is one of 299 of the 668 inventoried bridges in Kern County rated fair (44.8%); 37 (5.5%) 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 → (35.44752, -118.91827)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Superstructure | 6 | Satisfactory condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Concrete deck arch |
| Length | about 32 ft |
| Location | East of Harbor Road |
| NBI structure number | 50C0261 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the California department of transportation.
Busiest bridges in Kern County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| State Route 99 over Kern River | 1961 | 140,000 | Fair |
| State Route 99 over BNSF Ry & Amtrak | 1961 | 132,000 | Good |
| State Route 99 over California Avenue | 1963 | 132,000 | Good |
| State Route 99 over SR 178 (rosedale Hwy) | 1963 | 132,000 | Good |
| State Route 99 over Truxtun Ave | 1963 | 132,000 | Good |
| State Route 99 over Canal Lateral 29 | 1933 | 130,000 | Good |
All bridges nearby: Kern County, CA bridge conditions · every bridge in Kern County · California bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.