State Route 140 over North Branch Mud Slough
FairMerced County, California · 10-MER-140-11.32 · Structure no. 39 0091
- Built
- 1992
- 33 years old
- Condition
- Fair
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 113 ft
- 1 main span
- Daily traffic
- 3,650
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 140 over North Branch Mud Slough is a prestressed concrete stringer/multi-beam or girder carrying State Route 140 over North Branch Mud Slough in Merced County, California. It was built in 1992, so it is 33 years old, younger 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 3,650 vehicles a day, roughly 11% of them trucks, projected to reach 4,247 by 2045. The structure is 113 ft (34.4 m) long and 44 ft wide. If it were closed, the detour would be 29.8 mi (48 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 | 8 Very Good | No problems noted. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 140 over North Branch Mud Slough built?
It was built in 1992, making it 33 years old in 2025.
What condition is State Route 140 over North Branch Mud 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 State Route 140 over North Branch Mud Slough carry?
About 3,650 vehicles per day (2009 count), of which roughly 11% are trucks.
How long is State Route 140 over North Branch Mud Slough?
The structure is 113 ft (34.4 m) long with a longest span of 112 ft (34.1 m) and a deck 44 ft wide.
Who owns State Route 140 over North Branch Mud Slough?
It is owned by the State Highway Agency.