Interstate 5 NB over Walnut Grove Road
FairSan Joaquin County, California · 10-SJ-005-47.60 · Structure no. 29 0250R
- Built
- 1979
- 46 years old
- Condition
- Fair
- inspected March 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 148 ft
- 1 main span
- Daily traffic
- 25,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 5 NB over Walnut Grove Road is a prestressed concrete box beam or girders - multiple carrying Interstate 5 NB over Walnut Grove Road in San Joaquin County, California. It was built in 1979, so it is 46 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 25,000 vehicles a day, roughly 24% of them trucks, projected to reach 59,843 by 2041. The structure is 148 ft (45.1 m) long and 43 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 5 NB over Walnut Grove Road built?
It was built in 1979, making it 46 years old in 2025.
What condition is Interstate 5 NB over Walnut Grove Road 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 March 2023.
How much traffic does Interstate 5 NB over Walnut Grove Road carry?
About 25,000 vehicles per day (2009 count), of which roughly 24% are trucks.
How long is Interstate 5 NB over Walnut Grove Road?
The structure is 148 ft (45.1 m) long with a longest span of 146 ft (44.5 m) and a deck 43 ft wide.
Who owns Interstate 5 NB over Walnut Grove Road?
It is owned by the State Highway Agency.