US Bridges

San Tomas Expwy over Winchester Blvd & UP RR

Fair

Santa Clara County, California · At Winchester Blvd · Structure no. 37C0083

Built
1968
57 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
307 ft
6 main spans
Daily traffic
62,140
2014 count
Owner
County
County Highway Agency

About this bridge

San Tomas Expwy over Winchester Blvd & UP RR is a steel stringer/multi-beam or girder carrying San Tomas Expwy over Winchester Blvd & UP RR in Santa Clara County, California. It was built in 1968, so it is 57 years old, older 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 5 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 62,140 vehicles a day, roughly 7% of them trucks, projected to reach 53,263 by 2044. The structure is 307 ft (93.6 m) long and 94 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSan Tomas Expwy
CrossesWinchester Blvd & UP RR
LocationAt Winchester Blvd
RouteCounty Highway 0
CountySanta Clara County
StateCalifornia
Coordinates37.27375, -121.95321
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.7 US tons
Inventory rating41.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length307 ft (93.6 m)
Longest span60 ft (18.2 m)
Deck width94 ft (28.6 m)
Roadway width85 ft (25.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic62,140 (2014)
Projected traffic53,263 by 2044
Trucks7%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed5 mi (8 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was San Tomas Expwy over Winchester Blvd & UP RR built?

It was built in 1968, making it 57 years old in 2025.

What condition is San Tomas Expwy over Winchester Blvd & UP RR 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 February 2024.

How much traffic does San Tomas Expwy over Winchester Blvd & UP RR carry?

About 62,140 vehicles per day (2014 count), of which roughly 7% are trucks.

How long is San Tomas Expwy over Winchester Blvd & UP RR?

The structure is 307 ft (93.6 m) long with a longest span of 60 ft (18.2 m) and a deck 94 ft wide.

Who owns San Tomas Expwy over Winchester Blvd & UP RR?

It is owned by the County Highway Agency.