US Bridges

State Route 85 over Calabazas Creek

Fair

Santa Clara County, California · 04-SCL-085-R15.40-SJS · Structure no. 37 0527R

Built
1993
32 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
156 ft
2 main spans
Daily traffic
50,000
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 85 over Calabazas Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying State Route 85 over Calabazas Creek in Santa Clara County, California. It was built in 1993, so it is 32 years old, younger 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 6 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 50,000 vehicles a day, roughly 4% of them trucks, projected to reach 72,705 by 2046. The structure is 156 ft (47.5 m) long and 59 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesState Route 85
CrossesCalabazas Creek
Location04-SCL-085-R15.40-SJS
RouteState Highway 85
Coordinates37.29792, -122.02884
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
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 rating76.8 US tons
Inventory rating50.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length156 ft (47.5 m)
Longest span78 ft (23.8 m)
Deck width59 ft (18.1 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50,000 (2009)
Projected traffic72,705 by 2046
Trucks4%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 85 over Calabazas Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is State Route 85 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 August 2024.

How much traffic does State Route 85 over Calabazas Creek carry?

About 50,000 vehicles per day (2009 count), of which roughly 4% are trucks.

How long is State Route 85 over Calabazas Creek?

The structure is 156 ft (47.5 m) long with a longest span of 78 ft (23.8 m) and a deck 59 ft wide.

Who owns State Route 85 over Calabazas Creek?

It is owned by the State Highway Agency.