Mackville Road over Mokelumne River
PoorSan Joaquin County, California · 0.1 MI S Jahant RD · Structure no. 29C0061
- Built
- 1976
- 49 years old
- Condition
- Poor
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 363 ft
- 3 main spans
- Daily traffic
- 1,202
- 2016 count
- Owner
- County
- County Highway Agency
About this bridge
Mackville Road over Mokelumne River is a prestressed concrete continuous stringer/multi-beam or girder carrying Mackville Road over Mokelumne River in San Joaquin County, California. It was built in 1976, so it is 49 years old, younger 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.
It carries about 1,202 vehicles a day, roughly 15% of them trucks, projected to reach 878 by 2046. The structure is 363 ft (110.6 m) long and 41 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mackville Road over Mokelumne River built?
It was built in 1976, making it 49 years old in 2025.
What condition is Mackville Road over Mokelumne River 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 January 2024.
How much traffic does Mackville Road over Mokelumne River carry?
About 1,202 vehicles per day (2016 count), of which roughly 15% are trucks.
How long is Mackville Road over Mokelumne River?
The structure is 363 ft (110.6 m) long with a longest span of 120 ft (36.6 m) and a deck 41 ft wide.
Who owns Mackville Road over Mokelumne River?
It is owned by the County Highway Agency.