US Bridges

Interstate 680 over Berryessa Creek

Fair

Santa Clara County, California · 04-SCL-680-M5.81-SJS · Structure no. 37 0299

Built
1974
51 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
83 ft
1 main span
Daily traffic
175,000
2009 count
Owner
State
State Highway Agency

About this bridge

Interstate 680 over Berryessa Creek is a prestressed concrete box beam or girders - multiple carrying Interstate 680 over Berryessa Creek in Santa Clara County, California. It was built in 1974, so it is 51 years old, younger 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 6 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 175,000 vehicles a day, roughly 5% of them trucks, projected to reach 263,735 by 2045. The structure is 83 ft (25.3 m) long and 161 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesInterstate 680
CrossesBerryessa Creek
Location04-SCL-680-M5.81-SJS
RouteInterstate 680
Coordinates37.40913, -121.87851
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating22.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length83 ft (25.3 m)
Longest span80 ft (24.4 m)
Deck width161 ft (49.1 m)
Roadway width157 ft (47.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175,000 (2009)
Projected traffic263,735 by 2045
Trucks5%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Interstate 680 over Berryessa Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Interstate 680 over Berryessa Creek 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 July 2023.

How much traffic does Interstate 680 over Berryessa Creek carry?

About 175,000 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is Interstate 680 over Berryessa Creek?

The structure is 83 ft (25.3 m) long with a longest span of 80 ft (24.4 m) and a deck 161 ft wide.

Who owns Interstate 680 over Berryessa Creek?

It is owned by the State Highway Agency.