Lower Sacramento R over Mokelumne River Overflow
FairSan Joaquin County, California · 0.7 MI N Turner RD · Structure no. 29C0008
- Built
- 1969
- 56 years old
- Condition
- Fair
- inspected January 2024
- Type
- Slab
- Concrete Continuous
- Length
- 158 ft
- 6 main spans
- Daily traffic
- 9,943
- 2008 count
- Owner
- County
- County Highway Agency
About this bridge
Lower Sacramento R over Mokelumne River Overflow is a concrete continuous slab carrying Lower Sacramento R over Mokelumne River Overflow in San Joaquin County, California. It was built in 1969, so it is 56 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 9,943 vehicles a day, roughly 10% of them trucks, projected to reach 17,969 by 2042. The structure is 158 ft (48.2 m) long and 40 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Lower Sacramento R over Mokelumne River Overflow built?
It was built in 1969, making it 56 years old in 2025.
What condition is Lower Sacramento R over Mokelumne River 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 2024.
How much traffic does Lower Sacramento R over Mokelumne River Overflow carry?
About 9,943 vehicles per day (2008 count), of which roughly 10% are trucks.
How long is Lower Sacramento R over Mokelumne River Overflow?
The structure is 158 ft (48.2 m) long with a longest span of 26 ft (7.9 m) and a deck 40 ft wide.
Who owns Lower Sacramento R over Mokelumne River Overflow?
It is owned by the County Highway Agency.