US Bridges

Interstate 680 over SR 238 (mission Blvd)

Fair

Alameda County, California · 04-ALA-680-R6.38-FMT · Structure no. 33 0294

Built
1963
62 years old, rebuilt 2010
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
178 ft
3 main spans
Daily traffic
140,000
2018 count
Owner
State
State Highway Agency

About this bridge

Interstate 680 over SR 238 (mission Blvd) is a concrete continuous box beam or girders - multiple carrying Interstate 680 over SR 238 (mission Blvd) in Alameda County, California. It was built in 1963 and reconstructed in 2010, so it is 62 years old, older 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 140,000 vehicles a day, roughly 9% of them trucks, projected to reach 241,101 by 2042. The structure is 178 ft (54.3 m) long and 149 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesInterstate 680
CrossesSR 238 (mission Blvd)
Location04-ALA-680-R6.38-FMT
RouteInterstate 680
CountyAlameda County
StateCalifornia
Coordinates37.54031, -121.92455
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating52.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length178 ft (54.3 m)
Longest span91 ft (27.7 m)
Deck width149 ft (45.3 m)
Roadway width141 ft (43.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140,000 (2018)
Projected traffic241,101 by 2042
Trucks9%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.8 mi (11 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 over SR 238 (mission Blvd) built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2010.

What condition is Interstate 680 over SR 238 (mission Blvd) 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 2024.

How much traffic does Interstate 680 over SR 238 (mission Blvd) carry?

About 140,000 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is Interstate 680 over SR 238 (mission Blvd)?

The structure is 178 ft (54.3 m) long with a longest span of 91 ft (27.7 m) and a deck 149 ft wide.

Who owns Interstate 680 over SR 238 (mission Blvd)?

It is owned by the State Highway Agency.