US Bridges

West Saint John over Guadalupe River

Good

Santa Clara County, California · Btwn Autumn ST & River ST · Structure no. 37C0742

Built
1935
90 years old
Condition
Good
inspected March 2023
Type
Tee Beam
Concrete Continuous
Length
131 ft
3 main spans
Daily traffic
2,140
1977 count
Owner
City
City or Municipal Highway Agency

About this bridge

West Saint John over Guadalupe River is a concrete continuous tee beam carrying West Saint John over Guadalupe River in Santa Clara County, California. It was built in 1935, so it is 90 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 2,140 vehicles a day, roughly 2% of them trucks, projected to reach 3,544 by 2041. The structure is 131 ft (39.9 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWest Saint John
CrossesGuadalupe River
LocationBtwn Autumn ST & River ST
RouteCity Street 0
Coordinates37.33441, -121.89963
Functional classUrban Local

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 protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.8 US tons
Inventory rating16.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length131 ft (39.9 m)
Longest span45 ft (13.7 m)
Deck width60 ft (18.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,140 (1977)
Projected traffic3,544 by 2041
Trucks2%
Lanes on structure2
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 West Saint John over Guadalupe River built?

It was built in 1935, making it 90 years old in 2025.

What condition is West Saint John over Guadalupe River 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 2023.

How much traffic does West Saint John over Guadalupe River carry?

About 2,140 vehicles per day (1977 count), of which roughly 2% are trucks.

How long is West Saint John over Guadalupe River?

The structure is 131 ft (39.9 m) long with a longest span of 45 ft (13.7 m) and a deck 60 ft wide.

Who owns West Saint John over Guadalupe River?

It is owned by the City or Municipal Highway Agency.