US Bridges

Interstate 680 SB over Dept of Water Resources

Poor

Alameda County, California · 04-ALA-680-M0.79-FMT · Structure no. 33 0438L

Built
1971
54 years old, rebuilt 2010
Condition
Poor
inspected March 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
230 ft
3 main spans
Daily traffic
60,500
2018 count
Owner
State
State Highway Agency

About this bridge

Interstate 680 SB over Dept of Water Resources is a concrete continuous box beam or girders - multiple carrying Interstate 680 SB over Dept of Water Resources in Alameda County, California. It was built in 1971 and reconstructed in 2010, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 60,500 vehicles a day, roughly 8% of them trucks, projected to reach 92,633 by 2042. The structure is 230 ft (70 m) long and 84 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesInterstate 680 SB
CrossesDept of Water Resources
Location04-ALA-680-M0.79-FMT
RouteInterstate 680
Coordinates37.47461, -121.91102
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating94.9 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length230 ft (70 m)
Longest span95 ft (29 m)
Deck width84 ft (25.5 m)
Roadway width81 ft (24.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60,500 (2018)
Projected traffic92,633 by 2042
Trucks8%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Interstate 680 SB over Dept of Water Resources built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2010.

What condition is Interstate 680 SB over Dept of Water Resources in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does Interstate 680 SB over Dept of Water Resources carry?

About 60,500 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is Interstate 680 SB over Dept of Water Resources?

The structure is 230 ft (70 m) long with a longest span of 95 ft (29 m) and a deck 84 ft wide.

Who owns Interstate 680 SB over Dept of Water Resources?

It is owned by the State Highway Agency.