US Bridges

Interstate 680 SB over SR 262 (mission Blvd)

Poor

Alameda County, California · 04-ALA-680-M2.38-FMT · Structure no. 33 0428L

Built
1971
54 years old, rebuilt 1997
Condition
Poor
inspected March 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
176 ft
2 main spans
Daily traffic
61,000
2018 count
Owner
State
State Highway Agency

About this bridge

Interstate 680 SB over SR 262 (mission Blvd) is a concrete continuous box beam or girders - multiple carrying Interstate 680 SB over SR 262 (mission Blvd) in Alameda County, California. It was built in 1971 and reconstructed in 1997, 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 61,000 vehicles a day, roughly 7% of them trucks, projected to reach 110,923 by 2042. The structure is 176 ft (53.6 m) long and 115 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesInterstate 680 SB
CrossesSR 262 (mission Blvd)
Location04-ALA-680-M2.38-FMT
RouteInterstate 680
Coordinates37.49514, -121.92331
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length176 ft (53.6 m)
Longest span87 ft (26.5 m)
Deck width115 ft (35.2 m)
Roadway width103 ft (31.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic61,000 (2018)
Projected traffic110,923 by 2042
Trucks7%
Lanes on structure6
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.8 million (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Interstate 680 SB over SR 262 (mission Blvd) built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 1997.

What condition is Interstate 680 SB over SR 262 (mission Blvd) 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 SR 262 (mission Blvd) carry?

About 61,000 vehicles per day (2018 count), of which roughly 7% are trucks.

How long is Interstate 680 SB over SR 262 (mission Blvd)?

The structure is 176 ft (53.6 m) long with a longest span of 87 ft (26.5 m) and a deck 115 ft wide.

Who owns Interstate 680 SB over SR 262 (mission Blvd)?

It is owned by the State Highway Agency.