Golden Gate Avenue over Mormon Slough
GoodSan Joaquin County, California · 1/2 MI N/W of S.H. 99 · Structure no. 29C0087
- Built
- 1966
- 59 years old, rebuilt 2015
- Condition
- Good
- inspected January 2023
- Type
- Slab
- Concrete Continuous
- Length
- 120 ft
- 4 main spans
- Daily traffic
- 2,469
- 2017 count
- Owner
- County
- County Highway Agency
About this bridge
Golden Gate Avenue over Mormon Slough is a concrete continuous slab carrying Golden Gate Avenue over Mormon Slough in San Joaquin County, California. It was built in 1966 and reconstructed in 2015, so it is 59 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 2,469 vehicles a day, roughly 2% of them trucks, projected to reach 3,673 by 2045. The structure is 120 ft (36.6 m) long and 70 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 Golden Gate Avenue over Mormon Slough built?
It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2015.
What condition is Golden Gate Avenue over Mormon Slough in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2023.
How much traffic does Golden Gate Avenue over Mormon Slough carry?
About 2,469 vehicles per day (2017 count), of which roughly 2% are trucks.
How long is Golden Gate Avenue over Mormon Slough?
The structure is 120 ft (36.6 m) long with a longest span of 30 ft (9.1 m) and a deck 70 ft wide.
Who owns Golden Gate Avenue over Mormon Slough?
It is owned by the County Highway Agency.