US Bridges

Meridian Road (nb) over Interstate 280

Fair

Santa Clara County, California · 04-SCL-280-R3.99 · Structure no. 37 0257R

Built
1972
53 years old
Condition
Fair
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
277 ft
2 main spans
Daily traffic
16,740
1999 count
Owner
State
State Highway Agency

About this bridge

Meridian Road (nb) over Interstate 280 is a prestressed concrete continuous box beam or girders - multiple carrying Meridian Road (nb) over Interstate 280 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 fair condition with a lowest component rating of 6 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 16,740 vehicles a day, roughly 2% of them trucks, projected to reach 21,491 by 2043. The structure is 277 ft (84.4 m) long and 51 ft wide.

Location

Open in Google Maps
CarriesMeridian Road (nb)
CrossesInterstate 280
Location04-SCL-280-R3.99
RouteCounty Highway 6009
CountySanta Clara County
StateCalifornia
Coordinates37.31492, -121.91492
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2025
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 alignment7: Better than present minimum criteria
Operating rating46.1 US tons
Inventory rating33.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length277 ft (84.4 m)
Longest span136 ft (41.5 m)
Deck width51 ft (15.5 m)
Roadway width49 ft (14.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,740 (1999)
Projected traffic21,491 by 2043
Trucks2%
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 Meridian Road (nb) over Interstate 280 built?

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

What condition is Meridian Road (nb) over Interstate 280 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 February 2025.

How much traffic does Meridian Road (nb) over Interstate 280 carry?

About 16,740 vehicles per day (1999 count), of which roughly 2% are trucks.

How long is Meridian Road (nb) over Interstate 280?

The structure is 277 ft (84.4 m) long with a longest span of 136 ft (41.5 m) and a deck 51 ft wide.

Who owns Meridian Road (nb) over Interstate 280?

It is owned by the State Highway Agency.