State Route 204 over Kern River
Kern County, California · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- State Route 204 over Kern River in Kern County, California, 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 1933 and reconstructed in 1954, making it 92 years old at the 2025 inventory.
- It carries about 38,000 vehicles a day (traffic count year 2019).
- Its listed owner is the state highway agency.
- It is one of 332 of the 668 inventoried bridges in Kern County rated good (49.7%); 37 (5.5%) are rated poor.
- 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 → (35.39429, -119.02906)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 962 ft |
| Location | 06-ker-204-5.61 |
| NBI structure number | 50 0033 |
| Condition class | Good |
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.