US Bridges

N680-E&W130 over Capitol Exp CAPITOL-N680

Good

Santa Clara County, California · 04-SCL-680-M1.41-SJS · Structure no. 37 0288G

Built
1974
51 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
380 ft
4 main spans
Daily traffic
10,600
2009 count
Owner
State
State Highway Agency

About this bridge

N680-E&W130 over Capitol Exp CAPITOL-N680 is a prestressed concrete continuous box beam or girders - multiple carrying N680-E&W130 over Capitol Exp CAPITOL-N680 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,600 vehicles a day, roughly 3% of them trucks, projected to reach 21,808 by 2041. The structure is 380 ft (115.8 m) long and 26 ft wide.

CarriesN680-E&W130
CrossesCapitol Exp CAPITOL-N680
Location04-SCL-680-M1.41-SJS
RouteInterstate 680
Coordinates37.35535, -121.83805
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
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 alignment6: Equal to present minimum criteria
Operating rating48.9 US tons
Inventory rating37.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length380 ft (115.8 m)
Longest span96 ft (29.3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,600 (2009)
Projected traffic21,808 by 2041
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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 N680-E&W130 over Capitol Exp CAPITOL-N680 built?

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

What condition is N680-E&W130 over Capitol Exp CAPITOL-N680 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does N680-E&W130 over Capitol Exp CAPITOL-N680 carry?

About 10,600 vehicles per day (2009 count), of which roughly 3% are trucks.

How long is N680-E&W130 over Capitol Exp CAPITOL-N680?

The structure is 380 ft (115.8 m) long with a longest span of 96 ft (29.3 m) and a deck 26 ft wide.

Who owns N680-E&W130 over Capitol Exp CAPITOL-N680?

It is owned by the State Highway Agency.