Ellis RD over Simmerly Slough
PoorPosted for loadYuba County, California · 1.0 MI E of SR 70 · Structure no. 16C0075
- Built
- 1928
- 97 years old
- Condition
- Poor
- inspected August 2024
- Type
- Slab
- Concrete Continuous
- Length
- 45 ft
- 3 main spans
- Daily traffic
- 40
- 2013 count
- Owner
- County
- County Highway Agency
About this bridge
Ellis RD over Simmerly Slough is a concrete continuous slab carrying Ellis RD over Simmerly Slough in Yuba County, California. It was built in 1928, so it is 97 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 40 vehicles a day, roughly 1% of them trucks, projected to reach 84 by 2046. The structure is 45 ft (13.7 m) long and 23 ft wide. If it were closed, the detour would be 6.2 mi (10 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ellis RD over Simmerly Slough built?
It was built in 1928, making it 97 years old in 2025.
What condition is Ellis RD over Simmerly Slough in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.
How much traffic does Ellis RD over Simmerly Slough carry?
About 40 vehicles per day (2013 count), of which roughly 1% are trucks.
How long is Ellis RD over Simmerly Slough?
The structure is 45 ft (13.7 m) long with a longest span of 15 ft (4.6 m) and a deck 23 ft wide.
Who owns Ellis RD over Simmerly Slough?
It is owned by the County Highway Agency.