US Bridges

North 1st Street over State Route 237

Fair

Santa Clara County, California · 04-SCL-237-6.87-SJS · Structure no. 37 0485

Built
1995
30 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
361 ft
2 main spans
Daily traffic
14,500
2003 count
Owner
State
State Highway Agency

About this bridge

North 1st Street over State Route 237 is a prestressed concrete continuous box beam or girders - multiple carrying North 1st Street over State Route 237 in Santa Clara County, California. It was built in 1995, so it is 30 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 14,500 vehicles a day, roughly 4% of them trucks, projected to reach 23,426 by 2042. The structure is 361 ft (110 m) long and 89 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNorth 1st Street
CrossesState Route 237
Location04-SCL-237-6.87-SJS
RouteCity Street 0
Coordinates37.41953, -121.9601
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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum 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 length361 ft (110 m)
Longest span183 ft (55.8 m)
Deck width89 ft (27.1 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,500 (2003)
Projected traffic23,426 by 2042
Trucks4%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 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 North 1st Street over State Route 237 built?

It was built in 1995, making it 30 years old in 2025.

What condition is North 1st Street over State Route 237 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 April 2024.

How much traffic does North 1st Street over State Route 237 carry?

About 14,500 vehicles per day (2003 count), of which roughly 4% are trucks.

How long is North 1st Street over State Route 237?

The structure is 361 ft (110 m) long with a longest span of 183 ft (55.8 m) and a deck 89 ft wide.

Who owns North 1st Street over State Route 237?

It is owned by the State Highway Agency.