US Bridges

NB Route 87 & Ramp over N87-N280 Con & Auzerais

Good

Santa Clara County, California · 04-SCL-087-5.21-SJS · Structure no. 37 0273R

Built
1970
55 years old, rebuilt 2007
Condition
Good
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
821 ft
1 main span
Daily traffic
65,000
2009 count
Owner
State
State Highway Agency

About this bridge

NB Route 87 & Ramp over N87-N280 Con & Auzerais is a prestressed concrete box beam or girders - multiple carrying NB Route 87 & Ramp over N87-N280 Con & Auzerais in Santa Clara County, California. It was built in 1970 and reconstructed in 2007, so it is 55 years old, older 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 65,000 vehicles a day, roughly 3% of them trucks, projected to reach 94,064 by 2046. The structure is 821 ft (250.2 m) long and 52 ft wide.

CarriesNB Route 87 & Ramp
CrossesN87-N280 Con & Auzerais
Location04-SCL-087-5.21-SJS
RouteState Highway 87
Coordinates37.32456, -121.89228
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+12 approach)
Design loadHS 20 + Mod
Structure length821 ft (250.2 m)
Longest span99 ft (30.2 m)
Deck width52 ft (15.8 m)
Roadway width49 ft (15 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65,000 (2009)
Projected traffic94,064 by 2046
Trucks3%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
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 NB Route 87 & Ramp over N87-N280 Con & Auzerais built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2007.

What condition is NB Route 87 & Ramp over N87-N280 Con & Auzerais 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 January 2024.

How much traffic does NB Route 87 & Ramp over N87-N280 Con & Auzerais carry?

About 65,000 vehicles per day (2009 count), of which roughly 3% are trucks.

How long is NB Route 87 & Ramp over N87-N280 Con & Auzerais?

The structure is 821 ft (250.2 m) long with a longest span of 99 ft (30.2 m) and a deck 52 ft wide.

Who owns NB Route 87 & Ramp over N87-N280 Con & Auzerais?

It is owned by the State Highway Agency.