US Bridges

Lelong ST over By-Pass Channel

Good

Santa Clara County, California · At Alma Ave · Structure no. 37C0381

Built
1991
34 years old
Condition
Good
inspected November 2021
Type
Culvert
Concrete Continuous
Length
30 ft
3 main spans
Daily traffic
3,000
1998 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lelong ST over By-Pass Channel is a concrete continuous culvert carrying Lelong ST over By-Pass Channel in Santa Clara County, California. It was built in 1991, so it is 34 years old, younger 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 3,000 vehicles a day, roughly 1% of them trucks, projected to reach 6,763 by 2043. The structure is 30 ft (9.1 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLelong ST
CrossesBy-Pass Channel
LocationAt Alma Ave
RouteCity Street 0
Coordinates37.30981, -121.88471
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
Channel and channel protection7 GoodSome minor problems.
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 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 Continuous
DeckNot applicable
Main spans3
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span10 ft (3.1 m)
Deck width52 ft (15.7 m)
Roadway width47 ft (14.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,000 (1998)
Projected traffic6,763 by 2043
Trucks1%
Lanes on structure3
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 Lelong ST over By-Pass Channel built?

It was built in 1991, making it 34 years old in 2025.

What condition is Lelong ST over By-Pass Channel 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 Lelong ST over By-Pass Channel carry?

About 3,000 vehicles per day (1998 count), of which roughly 1% are trucks.

How long is Lelong ST over By-Pass Channel?

The structure is 30 ft (9.1 m) long with a longest span of 10 ft (3.1 m) and a deck 52 ft wide.

Who owns Lelong ST over By-Pass Channel?

It is owned by the City or Municipal Highway Agency.