Interstate 680 SB over Grimmer Blvd
GoodAlameda County, California · 04-ALA-680-M3.35-FMT · Structure no. 33 0429L
- Built
- 1971
- 54 years old, rebuilt 2001
- Condition
- Good
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 147 ft
- 1 main span
- Daily traffic
- 70,000
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 680 SB over Grimmer Blvd is a prestressed concrete box beam or girders - multiple carrying Interstate 680 SB over Grimmer Blvd in Alameda County, California. It was built in 1971 and reconstructed in 2001, so it is 54 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 70,000 vehicles a day, roughly 9% of them trucks, projected to reach 117,710 by 2042. The structure is 147 ft (44.8 m) long and 82 ft wide. If it were closed, the detour would be 3.7 mi (6 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 680 SB over Grimmer Blvd built?
It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2001.
What condition is Interstate 680 SB over Grimmer Blvd 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 March 2024.
How much traffic does Interstate 680 SB over Grimmer Blvd carry?
About 70,000 vehicles per day (2018 count), of which roughly 9% are trucks.
How long is Interstate 680 SB over Grimmer Blvd?
The structure is 147 ft (44.8 m) long with a longest span of 147 ft (44.8 m) and a deck 82 ft wide.
Who owns Interstate 680 SB over Grimmer Blvd?
It is owned by the State Highway Agency.