US Bridges

State Route 87 over Skyport Drive

Fair

Santa Clara County, California · 04-SCL-087-8.25-SJS · Structure no. 37 0605

Built
2003
22 years old
Condition
Fair
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
659 ft
3 main spans
Daily traffic
93,000
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 87 over Skyport Drive is a prestressed concrete continuous box beam or girders - multiple carrying State Route 87 over Skyport Drive in Santa Clara County, California. It was built in 2003, so it is 22 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 93,000 vehicles a day, roughly 9% of them trucks, projected to reach 97,366 by 2046. The structure is 659 ft (201 m) long and 124 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesState Route 87
CrossesSkyport Drive
Location04-SCL-087-8.25-SJS
RouteState Highway 87
CountySanta Clara County
StateCalifornia
Coordinates37.36374, -121.91821
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
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 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

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length659 ft (201 m)
Longest span262 ft (80 m)
Deck width124 ft (37.7 m)
Roadway width118 ft (36 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic93,000 (2009)
Projected traffic97,366 by 2046
Trucks9%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
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 State Route 87 over Skyport Drive built?

It was built in 2003, making it 22 years old in 2025.

What condition is State Route 87 over Skyport Drive 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 January 2024.

How much traffic does State Route 87 over Skyport Drive carry?

About 93,000 vehicles per day (2009 count), of which roughly 9% are trucks.

How long is State Route 87 over Skyport Drive?

The structure is 659 ft (201 m) long with a longest span of 262 ft (80 m) and a deck 124 ft wide.

Who owns State Route 87 over Skyport Drive?

It is owned by the State Highway Agency.