US Bridges

Central Expressway over Calabazas Creek

Good

Santa Clara County, California · 0.5 MI E Lawrence Expwy · Structure no. 37C0324

Built
1968
57 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete Continuous
Length
31 ft
3 main spans
Daily traffic
1,750
2013 count
Owner
County
County Highway Agency

About this bridge

Central Expressway over Calabazas Creek is a concrete continuous culvert carrying Central Expressway over Calabazas Creek in Santa Clara County, California. It was built in 1968, so it is 57 years old, older 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 1,750 vehicles a day, roughly 5% of them trucks, projected to reach 5,250 by 2044. The structure is 31 ft (9.4 m) long and 138 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCentral Expressway
CrossesCalabazas Creek
Location0.5 MI E Lawrence Expwy
RouteCity Street 0
Coordinates37.37754, -121.98691
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span9 ft (2.7 m)
Deck width138 ft (42.2 m)
Roadway width100 ft (30.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,750 (2013)
Projected traffic5,250 by 2044
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Central Expressway over Calabazas Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is Central Expressway 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 October 2024.

How much traffic does Central Expressway over Calabazas Creek carry?

About 1,750 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is Central Expressway over Calabazas Creek?

The structure is 31 ft (9.4 m) long with a longest span of 9 ft (2.7 m) and a deck 138 ft wide.

Who owns Central Expressway over Calabazas Creek?

It is owned by the County Highway Agency.