US Bridges

Interstate 280 over Mclaughlin Avenue

Good

Santa Clara County, California · 04-SCL-280-R0.36-SJS · Structure no. 37 0284

Built
1972
53 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
117 ft
1 main span
Daily traffic
157,000
2009 count
Owner
State
State Highway Agency

About this bridge

Interstate 280 over Mclaughlin Avenue is a prestressed concrete box beam or girders - multiple carrying Interstate 280 over Mclaughlin 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 157,000 vehicles a day, roughly 4% of them trucks, projected to reach 191,643 by 2045. The structure is 117 ft (35.7 m) long and 240 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 280
CrossesMclaughlin Avenue
Location04-SCL-280-R0.36-SJS
RouteInterstate 280
Coordinates37.3368, -121.85744
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 evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating26.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length117 ft (35.7 m)
Longest span115 ft (35.1 m)
Deck width240 ft (73.2 m)
Roadway width233 ft (71.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic157,000 (2009)
Projected traffic191,643 by 2045
Trucks4%
Lanes on structure12
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 Interstate 280 over Mclaughlin Avenue built?

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

What condition is Interstate 280 over Mclaughlin 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 Interstate 280 over Mclaughlin Avenue carry?

About 157,000 vehicles per day (2009 count), of which roughly 4% are trucks.

How long is Interstate 280 over Mclaughlin Avenue?

The structure is 117 ft (35.7 m) long with a longest span of 115 ft (35.1 m) and a deck 240 ft wide.

Who owns Interstate 280 over Mclaughlin Avenue?

It is owned by the State Highway Agency.