US Bridges

Southwest Expwy over Meridian Avenue

Good

Santa Clara County, California · S/O I-280 Intchng · Structure no. 37C0052L

Built
1972
53 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
211 ft
2 main spans
Daily traffic
10,100
1999 count
Owner
City
City or Municipal Highway Agency

About this bridge

Southwest Expwy over Meridian Avenue is a prestressed concrete continuous box beam or girders - multiple carrying Southwest Expwy over Meridian 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 10,100 vehicles a day, roughly 5% of them trucks, projected to reach 13,009 by 2042. The structure is 211 ft (64.3 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSouthwest Expwy
CrossesMeridian Avenue
LocationS/O I-280 Intchng
RouteCounty Highway 0
Coordinates37.31287, -121.91511
Functional classUrban Other Principal Arterial

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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating46.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length211 ft (64.3 m)
Longest span109 ft (33.2 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,100 (1999)
Projected traffic13,009 by 2042
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Southwest Expwy over Meridian Avenue built?

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

What condition is Southwest Expwy over Meridian 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 March 2024.

How much traffic does Southwest Expwy over Meridian Avenue carry?

About 10,100 vehicles per day (1999 count), of which roughly 5% are trucks.

How long is Southwest Expwy over Meridian Avenue?

The structure is 211 ft (64.3 m) long with a longest span of 109 ft (33.2 m) and a deck 38 ft wide.

Who owns Southwest Expwy over Meridian Avenue?

It is owned by the City or Municipal Highway Agency.