Railroad Flat Rd over Jesus Maria Creek
Calaveras County, California · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Railroad Flat Rd over Jesus Maria Creek in Calaveras County, California, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1978, making it 47 years old at the 2025 inventory.
- It carries about 571 vehicles a day (traffic count year 2008).
- Its listed owner is the county highway agency.
- It is one of 63 of the 108 inventoried bridges in Calaveras County rated fair (58.3%); 6 (5.6%) 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 March 2024, on a 48-month routine inspection cycle.
- 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 → (38.26689, -120.50328)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 40 ft |
| Location | 1.8 Mi. S. Jesus Maria Rd |
| NBI structure number | 30C0046 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 2024 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the California department of transportation.
Busiest bridges in Calaveras County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| State Route 4 over Murphys Grade Road | 2009 | 9,150 | Good |
| State Route 4 over Angels Creek | 2009 | 9,150 | Good |
| State Route 49 over Angels Creek | 1909 | 9,100 | Fair |
| State Route 49 over Cherokee Creek | 1941 | 8,050 | Good |
| State Route 12 over Lime Creek | 1939 | 8,000 | Fair |
| State Route 4 over Waterman Creek | 1941 | 7,900 | Fair |
All bridges nearby: Calaveras County, CA bridge conditions · every bridge in Calaveras County · California bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.