US Bridges

Almaden Expressway over State Route 87

Good

Santa Clara County, California · 04-SCL-087-3.38-SJS · Structure no. 37 0419

Built
1990
35 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
250 ft
2 main spans
Daily traffic
12,000
1998 count
Owner
State
State Highway Agency

About this bridge

Almaden Expressway over State Route 87 is a prestressed concrete continuous box beam or girders - multiple carrying Almaden Expressway over State Route 87 in Santa Clara County, California. It was built in 1990, so it is 35 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 12,000 vehicles a day, roughly 1% of them trucks, projected to reach 32,712 by 2041. The structure is 250 ft (76.2 m) long and 87 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesAlmaden Expressway
CrossesState Route 87
Location04-SCL-087-3.38-SJS
RouteCounty Highway 0
Coordinates37.30132, -121.87689
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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length250 ft (76.2 m)
Longest span124 ft (37.7 m)
Deck width87 ft (26.6 m)
Roadway width82 ft (25 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,000 (1998)
Projected traffic32,712 by 2041
Trucks1%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 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 Almaden Expressway over State Route 87 built?

It was built in 1990, making it 35 years old in 2025.

What condition is Almaden Expressway over State Route 87 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 April 2023.

How much traffic does Almaden Expressway over State Route 87 carry?

About 12,000 vehicles per day (1998 count), of which roughly 1% are trucks.

How long is Almaden Expressway over State Route 87?

The structure is 250 ft (76.2 m) long with a longest span of 124 ft (37.7 m) and a deck 87 ft wide.

Who owns Almaden Expressway over State Route 87?

It is owned by the State Highway Agency.