San Joaquin ST over Mormon Slough
FairSan Joaquin County, California · 0.1 MI S Hazleton Ave · Structure no. 29C0237
- Built
- 1958
- 67 years old
- Condition
- Fair
- inspected January 2025
- Type
- Slab
- Concrete Continuous
- Length
- 117 ft
- 4 main spans
- Daily traffic
- 2,700
- 2017 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
San Joaquin ST over Mormon Slough is a concrete continuous slab carrying San Joaquin ST over Mormon Slough in San Joaquin County, California. It was built in 1958, so it is 67 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 2,700 vehicles a day, roughly 7% of them trucks, projected to reach 3,239 by 2045. The structure is 117 ft (35.7 m) long and 66 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was San Joaquin ST over Mormon Slough built?
It was built in 1958, making it 67 years old in 2025.
What condition is San Joaquin ST over Mormon Slough 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 San Joaquin ST over Mormon Slough carry?
About 2,700 vehicles per day (2017 count), of which roughly 7% are trucks.
How long is San Joaquin ST over Mormon Slough?
The structure is 117 ft (35.7 m) long with a longest span of 33 ft (10.1 m) and a deck 66 ft wide.
Who owns San Joaquin ST over Mormon Slough?
It is owned by the City or Municipal Highway Agency.