US Bridges

Bollinger RD over Calabazas Creek

Fair

Santa Clara County, California · 0.2 MI E Sunnyvale RD · Structure no. 37C0291

Built
2008
17 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete
Length
67 ft
1 main span
Daily traffic
24,000
2004 count
Owner
City
City or Municipal Highway Agency

About this bridge

Bollinger RD over Calabazas Creek is a concrete culvert carrying Bollinger RD over Calabazas Creek in Santa Clara County, California. It was built in 2008, so it is 17 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 24,000 vehicles a day, roughly 2% of them trucks, projected to reach 38,222 by 2042. The structure is 67 ft (20.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBollinger RD
CrossesCalabazas Creek
Location0.2 MI E Sunnyvale RD
RouteCity Street 0
Coordinates37.30983, -122.01984
Functional classUrban Minor 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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length67 ft (20.5 m)
Longest span24 ft (7.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,000 (2004)
Projected traffic38,222 by 2042
Trucks2%
Lanes on structure4
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 Bollinger RD over Calabazas Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is Bollinger 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 March 2024.

How much traffic does Bollinger RD over Calabazas Creek carry?

About 24,000 vehicles per day (2004 count), of which roughly 2% are trucks.

How long is Bollinger RD over Calabazas Creek?

The structure is 67 ft (20.5 m) long with a longest span of 24 ft (7.4 m).

Who owns Bollinger RD over Calabazas Creek?

It is owned by the City or Municipal Highway Agency.