Nelson RD over Edgar Slough Overflow
FairButte County, California · 0.1 MI E of 7 MI Lane · Structure no. 12C0402
- Built
- 1930
- 95 years old
- Condition
- Fair
- inspected January 2025
- Type
- Slab
- Concrete Continuous
- Length
- 55 ft
- 4 main spans
- Daily traffic
- 50
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
Nelson RD over Edgar Slough Overflow is a concrete continuous slab carrying Nelson RD over Edgar Slough Overflow in Butte County, California. It was built in 1930, so it is 95 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 50 vehicles a day, roughly 1% of them trucks, projected to reach 81 by 2044. The structure is 55 ft (16.8 m) long and 23 ft wide. If it were closed, the detour would be 13 mi (21 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nelson RD over Edgar Slough Overflow built?
It was built in 1930, making it 95 years old in 2025.
What condition is Nelson RD over Edgar Slough Overflow in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2025.
How much traffic does Nelson RD over Edgar Slough Overflow carry?
About 50 vehicles per day (2019 count), of which roughly 1% are trucks.
How long is Nelson RD over Edgar Slough Overflow?
The structure is 55 ft (16.8 m) long with a longest span of 13 ft (4 m) and a deck 23 ft wide.
Who owns Nelson RD over Edgar Slough Overflow?
It is owned by the County Highway Agency.