US Bridges

Machado & Calabaza over Calabazas Creek

Poor

Santa Clara County, California · Intersection · Structure no. 37C0308

Built
1961
64 years old
Condition
Poor
inspected June 2023
Type
Slab
Concrete
Length
40 ft
1 main span
Daily traffic
500
2011 count
Owner
City
City or Municipal Highway Agency

About this bridge

Machado & Calabaza over Calabazas Creek is a concrete slab carrying Machado & Calabaza over Calabazas Creek in Santa Clara County, California. It was built in 1961, so it is 64 years old, older 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 500 vehicles a day, roughly 1% of them trucks, projected to reach 571 by 2043. The structure is 40 ft (12.2 m) long and 50 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesMachado & Calabaza
CrossesCalabazas Creek
LocationIntersection
RouteCity Street 0
CountySanta Clara County
StateCalifornia
Coordinates37.36201, -121.98636
Functional classUrban Local

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
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 geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.7 US tons
Inventory rating33.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length40 ft (12.2 m)
Longest span37 ft (11.3 m)
Deck width50 ft (15.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2011)
Projected traffic571 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$312,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Machado & Calabaza over Calabazas Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is Machado & Calabaza 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 June 2023.

How much traffic does Machado & Calabaza over Calabazas Creek carry?

About 500 vehicles per day (2011 count), of which roughly 1% are trucks.

How long is Machado & Calabaza over Calabazas Creek?

The structure is 40 ft (12.2 m) long with a longest span of 37 ft (11.3 m) and a deck 50 ft wide.

Who owns Machado & Calabaza over Calabazas Creek?

It is owned by the City or Municipal Highway Agency.