US Bridges

Stevens CR Blvd over Calabazas Creek

Poor

Santa Clara County, California · At Vallco Pkwy · Structure no. 37C0012

Built
1978
47 years old
Condition
Poor
inspected May 2024
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
27,600
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Stevens CR Blvd over Calabazas Creek is a concrete continuous culvert carrying Stevens CR Blvd over Calabazas Creek in Santa Clara County, California. It was built in 1978, so it is 47 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 27,600 vehicles a day, roughly 2% of them trucks, projected to reach 27,810 by 2045. The structure is 24 ft (7.4 m) long and 134 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesStevens CR Blvd
CrossesCalabazas Creek
LocationAt Vallco Pkwy
RouteCity Street 0
CountySanta Clara County
StateCalifornia
Coordinates37.32281, -122.01113
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length24 ft (7.4 m)
Longest span12 ft (3.6 m)
Deck width134 ft (40.8 m)
Roadway width100 ft (30.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,600 (2020)
Projected traffic27,810 by 2045
Trucks2%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.7 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Stevens CR Blvd over Calabazas Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is Stevens CR Blvd over Calabazas Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does Stevens CR Blvd over Calabazas Creek carry?

About 27,600 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Stevens CR Blvd over Calabazas Creek?

The structure is 24 ft (7.4 m) long with a longest span of 12 ft (3.6 m) and a deck 134 ft wide.

Who owns Stevens CR Blvd over Calabazas Creek?

It is owned by the City or Municipal Highway Agency.