US Bridges

Cropley Avenue over Interstate 680

Fair

Santa Clara County, California · 04-SCL-680-M5.54-SJS · Structure no. 37 0298

Built
1974
51 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
212 ft
2 main spans
Daily traffic
38,000
2009 count
Owner
State
State Highway Agency

About this bridge

Cropley Avenue over Interstate 680 is a concrete continuous box beam or girders - multiple carrying Cropley Avenue over Interstate 680 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 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 38,000 vehicles a day, roughly 1% of them trucks, projected to reach 43,614 by 2041. The structure is 212 ft (64.6 m) long and 80 ft wide.

CarriesCropley Avenue
CrossesInterstate 680
Location04-SCL-680-M5.54-SJS
RouteCity Street 0C384
Coordinates37.40526, -121.87793
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating42.5 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length212 ft (64.6 m)
Longest span105 ft (32 m)
Deck width80 ft (24.4 m)
Roadway width66 ft (20.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,000 (2009)
Projected traffic43,614 by 2041
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 Cropley Avenue over Interstate 680 built?

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

What condition is Cropley Avenue over Interstate 680 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 Cropley Avenue over Interstate 680 carry?

About 38,000 vehicles per day (2009 count), of which roughly 1% are trucks.

How long is Cropley Avenue over Interstate 680?

The structure is 212 ft (64.6 m) long with a longest span of 105 ft (32 m) and a deck 80 ft wide.

Who owns Cropley Avenue over Interstate 680?

It is owned by the State Highway Agency.