US Bridges

Spring ST over Route 101

Good

Los Angeles County, California · 07-LA-101-1.01-LA · Structure no. 53 0627

Built
1949
76 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
128 ft
2 main spans
Daily traffic
50,000
2021 count
Owner
State
State Highway Agency

About this bridge

Spring ST over Route 101 is a concrete continuous box beam or girders - multiple carrying Spring ST over Route 101 in Los Angeles County, California. It was built in 1949, so it is 76 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 50,000 vehicles a day, roughly 1% of them trucks, projected to reach 65,000 by 2040. The structure is 128 ft (39 m) long and 100 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSpring ST
CrossesRoute 101
Location07-LA-101-1.01-LA
RouteCity Street 0L330
Coordinates34.05611, -118.24134
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.6 US tons
Inventory rating25.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length128 ft (39 m)
Longest span62 ft (18.9 m)
Deck width100 ft (30.5 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50,000 (2021)
Projected traffic65,000 by 2040
Trucks1%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Spring ST over Route 101 built?

It was built in 1949, making it 76 years old in 2025.

What condition is Spring ST over Route 101 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 2023.

How much traffic does Spring ST over Route 101 carry?

About 50,000 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Spring ST over Route 101?

The structure is 128 ft (39 m) long with a longest span of 62 ft (18.9 m) and a deck 100 ft wide.

Who owns Spring ST over Route 101?

It is owned by the State Highway Agency.