US Bridges

Quimby RD over Thompson Creek

Good

Santa Clara County, California · Nr Capitol Expressway · Structure no. 37C0143

Built
1970
55 years old
Condition
Good
inspected November 2021
Type
Culvert
Concrete Continuous
Length
39 ft
3 main spans
Daily traffic
11,800
2005 count
Owner
City
City or Municipal Highway Agency

About this bridge

Quimby RD over Thompson Creek is a concrete continuous culvert carrying Quimby RD over Thompson Creek in Santa Clara County, California. It was built in 1970, so it is 55 years old, older 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 11,800 vehicles a day, roughly 4% of them trucks, projected to reach 18,982 by 2043. The structure is 39 ft (11.9 m) long and 100 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesQuimby RD
CrossesThompson Creek
LocationNr Capitol Expressway
RouteCounty Highway 0
Coordinates37.32388, -121.80785
Functional classUrban Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length39 ft (11.9 m)
Longest span13 ft (4 m)
Deck width100 ft (30.5 m)
Roadway width77 ft (23.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,800 (2005)
Projected traffic18,982 by 2043
Trucks4%
Lanes on structure6
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Quimby RD over Thompson Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Quimby RD over Thompson 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 November 2021.

How much traffic does Quimby RD over Thompson Creek carry?

About 11,800 vehicles per day (2005 count), of which roughly 4% are trucks.

How long is Quimby RD over Thompson Creek?

The structure is 39 ft (11.9 m) long with a longest span of 13 ft (4 m) and a deck 100 ft wide.

Who owns Quimby RD over Thompson Creek?

It is owned by the City or Municipal Highway Agency.