US Bridges

S280-S87 Connector over Minor Avenue

Good

Santa Clara County, California · 04-SCL-280-R2.63-SJS · Structure no. 37 0321F

Built
1972
53 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
92 ft
1 main span
Daily traffic
19,600
1999 count
Owner
State
State Highway Agency

About this bridge

S280-S87 Connector over Minor Avenue is a prestressed concrete box beam or girders - multiple carrying S280-S87 Connector over Minor Avenue in Santa Clara County, California. It was built in 1972, so it is 53 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 19,600 vehicles a day, roughly 5% of them trucks, projected to reach 31,633 by 2045. The structure is 92 ft (28 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesS280-S87 Connector
CrossesMinor Avenue
Location04-SCL-280-R2.63-SJS
RouteInterstate 280
Coordinates37.3227, -121.8938
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.3 US tons
Inventory rating31.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length92 ft (28 m)
Longest span90 ft (27.4 m)
Deck width29 ft (8.8 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,600 (1999)
Projected traffic31,633 by 2045
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed5 mi (8 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was S280-S87 Connector over Minor Avenue built?

It was built in 1972, making it 53 years old in 2025.

What condition is S280-S87 Connector over Minor Avenue 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 2025.

How much traffic does S280-S87 Connector over Minor Avenue carry?

About 19,600 vehicles per day (1999 count), of which roughly 5% are trucks.

How long is S280-S87 Connector over Minor Avenue?

The structure is 92 ft (28 m) long with a longest span of 90 ft (27.4 m) and a deck 29 ft wide.

Who owns S280-S87 Connector over Minor Avenue?

It is owned by the State Highway Agency.