CR J18 over Merced River
GoodMerced County, California · Kelley Road · Structure no. 39C0354
- Built
- 1981
- 44 years old
- Condition
- Good
- inspected October 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 368 ft
- 2 main spans
- Daily traffic
- 1,196
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
CR J18 over Merced River is a prestressed concrete continuous box beam or girders - multiple carrying CR J18 over Merced River in Merced County, California. It was built in 1981, so it is 44 years old, younger 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 1,196 vehicles a day, roughly 5% of them trucks, projected to reach 1,799 by 2041. The structure is 368 ft (112.2 m) long and 35 ft wide. If it were closed, the detour would be 14.9 mi (24 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 CR J18 over Merced River built?
It was built in 1981, making it 44 years old in 2025.
What condition is CR J18 over Merced River 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 October 2023.
How much traffic does CR J18 over Merced River carry?
About 1,196 vehicles per day (2019 count), of which roughly 5% are trucks.
How long is CR J18 over Merced River?
The structure is 368 ft (112.2 m) long with a longest span of 184 ft (56.1 m) and a deck 35 ft wide.
Who owns CR J18 over Merced River?
It is owned by the County Highway Agency.