US Bridges

Oak Glen Ave over Llagas Creek

Good

Santa Clara County, California · 3.19 MI SE Uvas RD · Structure no. 37C0164

Built
1940
85 years old
Condition
Good
inspected April 2021
Type
Tee Beam
Concrete Continuous
Length
73 ft
2 main spans
Daily traffic
1,710
2014 count
Owner
County
County Highway Agency

About this bridge

Oak Glen Ave over Llagas Creek is a concrete continuous tee beam carrying Oak Glen Ave over Llagas Creek in Santa Clara County, California. It was built in 1940, so it is 85 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 1,710 vehicles a day, roughly 5% of them trucks, projected to reach 3,558 by 2038. The structure is 73 ft (22.1 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesOak Glen Ave
CrossesLlagas Creek
Location3.19 MI SE Uvas RD
RouteCounty Highway 0
Coordinates37.11463, -121.68837
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating50 US tons
Inventory rating38.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length73 ft (22.1 m)
Longest span36 ft (11 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,710 (2014)
Projected traffic3,558 by 2038
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Oak Glen Ave over Llagas Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is Oak Glen Ave over Llagas 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 April 2021.

How much traffic does Oak Glen Ave over Llagas Creek carry?

About 1,710 vehicles per day (2014 count), of which roughly 5% are trucks.

How long is Oak Glen Ave over Llagas Creek?

The structure is 73 ft (22.1 m) long with a longest span of 36 ft (11 m) and a deck 25 ft wide.

Who owns Oak Glen Ave over Llagas Creek?

It is owned by the County Highway Agency.