US Bridges

Rainbow Drive over Calabazas Creek

Good

Santa Clara County, California · 100 M E/O S Blaney Ave · Structure no. 37C0404

Built
1992
33 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete Continuous
Length
31 ft
2 main spans
Daily traffic
6,000
2004 count
Owner
City
City or Municipal Highway Agency

About this bridge

Rainbow Drive over Calabazas Creek is a concrete continuous culvert carrying Rainbow Drive over Calabazas Creek in Santa Clara County, California. It was built in 1992, so it is 33 years old, younger 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 6,000 vehicles a day, roughly 5% of them trucks, projected to reach 9,683 by 2046. The structure is 31 ft (9.3 m) long and 79 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRainbow Drive
CrossesCalabazas Creek
Location100 M E/O S Blaney Ave
RouteCity Street 0
CountySanta Clara County
StateCalifornia
Coordinates37.30087, -122.02677
Functional classUrban Collector

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 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 adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length31 ft (9.3 m)
Longest span11 ft (3.5 m)
Deck width79 ft (24 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,000 (2004)
Projected traffic9,683 by 2046
Trucks5%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Rainbow Drive over Calabazas Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Rainbow Drive 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 March 2024.

How much traffic does Rainbow Drive over Calabazas Creek carry?

About 6,000 vehicles per day (2004 count), of which roughly 5% are trucks.

How long is Rainbow Drive over Calabazas Creek?

The structure is 31 ft (9.3 m) long with a longest span of 11 ft (3.5 m) and a deck 79 ft wide.

Who owns Rainbow Drive over Calabazas Creek?

It is owned by the City or Municipal Highway Agency.