US Bridges

Pierce RD over Calabazas Creek

Fair

Santa Clara County, California · 0.4 MI S/W Surrey LN · Structure no. 37C0376

Built
1935
90 years old, rebuilt 1990
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
1,529
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Pierce RD over Calabazas Creek is a concrete slab carrying Pierce RD over Calabazas Creek in Santa Clara County, California. It was built in 1935 and reconstructed in 1990, so it is 90 years old, older 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 5 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 1,529 vehicles a day, roughly 2% of them trucks, projected to reach 2,969 by 2045. The structure is 23 ft (7 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesPierce RD
CrossesCalabazas Creek
Location0.4 MI S/W Surrey LN
RouteCity Street 0
Coordinates37.27241, -122.04422
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30.8 US tons
Inventory rating18.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length23 ft (7 m)
Longest span22 ft (6.6 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,529 (2020)
Projected traffic2,969 by 2045
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Pierce RD over Calabazas Creek built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1990.

What condition is Pierce RD over Calabazas Creek 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 May 2024.

How much traffic does Pierce RD over Calabazas Creek carry?

About 1,529 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Pierce RD over Calabazas Creek?

The structure is 23 ft (7 m) long with a longest span of 22 ft (6.6 m) and a deck 33 ft wide.

Who owns Pierce RD over Calabazas Creek?

It is owned by the City or Municipal Highway Agency.