US Bridges

Stoneridge DR over I 680 So San Ramon Crk

Good

Alameda County, California · 04-ALA-680-R19.30-PLE · Structure no. 33 0507

Built
1980
45 years old, rebuilt 1991
Condition
Good
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
495 ft
4 main spans
Daily traffic
27,000
2010 count
Owner
State
State Highway Agency

About this bridge

Stoneridge DR over I 680 So San Ramon Crk is a prestressed concrete continuous box beam or girders - multiple carrying Stoneridge DR over I 680 So San Ramon Crk in Alameda County, California. It was built in 1980 and reconstructed in 1991, so it is 45 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 27,000 vehicles a day, roughly 2% of them trucks, projected to reach 39,419 by 2042. The structure is 495 ft (150.9 m) long and 85 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesStoneridge DR
CrossesI 680 So San Ramon Crk
Location04-ALA-680-R19.30-PLE
RouteCity Street 0
Coordinates37.6904, -121.91896
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length495 ft (150.9 m)
Longest span130 ft (39.7 m)
Deck width85 ft (25.9 m)
Roadway width69 ft (21 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,000 (2010)
Projected traffic39,419 by 2042
Trucks2%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway and waterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Stoneridge DR over I 680 So San Ramon Crk built?

It was built in 1980, making it 45 years old in 2025. It was reconstructed in 1991.

What condition is Stoneridge DR over I 680 So San Ramon Crk 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 April 2024.

How much traffic does Stoneridge DR over I 680 So San Ramon Crk carry?

About 27,000 vehicles per day (2010 count), of which roughly 2% are trucks.

How long is Stoneridge DR over I 680 So San Ramon Crk?

The structure is 495 ft (150.9 m) long with a longest span of 130 ft (39.7 m) and a deck 85 ft wide.

Who owns Stoneridge DR over I 680 So San Ramon Crk?

It is owned by the State Highway Agency.