US Bridges

State Route 237 over Calabazas Creek

Good

Santa Clara County, California · 04-SCL-237-M5.28-SUNV · Structure no. 37 0171

Built
1994
31 years old
Condition
Good
inspected April 2021
Type
Slab
Concrete Continuous
Length
129 ft
3 main spans
Daily traffic
125,000
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 237 over Calabazas Creek is a concrete continuous slab carrying State Route 237 over Calabazas Creek in Santa Clara County, California. It was built in 1994, so it is 31 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 125,000 vehicles a day, roughly 8% of them trucks, projected to reach 156,111 by 2039. The structure is 129 ft (39.3 m) long and 141 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Route 237
CrossesCalabazas Creek
Location04-SCL-237-M5.28-SUNV
RouteState Highway 237
Coordinates37.41176, -121.98689
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length129 ft (39.3 m)
Longest span43 ft (13.1 m)
Deck width141 ft (43.1 m)
Roadway width136 ft (41.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125,000 (2009)
Projected traffic156,111 by 2039
Trucks8%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 237 over Calabazas Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is State Route 237 over Calabazas Creek 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 2021.

How much traffic does State Route 237 over Calabazas Creek carry?

About 125,000 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is State Route 237 over Calabazas Creek?

The structure is 129 ft (39.3 m) long with a longest span of 43 ft (13.1 m) and a deck 141 ft wide.

Who owns State Route 237 over Calabazas Creek?

It is owned by the State Highway Agency.