US Bridges

Interstate 110 over 37th Street

Good

Los Angeles County, California · 07-LA-110-19.93-LA · Structure no. 53 0899

Built
1996
29 years old
Condition
Good
inspected June 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
326 ft
4 main spans
Daily traffic
300,000
2022 count
Owner
State
State Highway Agency

About this bridge

Interstate 110 over 37th Street is a prestressed concrete continuous box beam or girders - multiple carrying Interstate 110 over 37th Street in Los Angeles County, California. It was built in 1996, so it is 29 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 300,000 vehicles a day, roughly 5% of them trucks, projected to reach 332,200 by 2042. The structure is 326 ft (99.3 m) long and 275 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesInterstate 110
Crosses37th Street
Location07-LA-110-19.93-LA
RouteInterstate 110
Coordinates34.01716, -118.27992
Functional classUrban Principal Arterial - Interstate

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 inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length326 ft (99.3 m)
Longest span95 ft (29 m)
Deck width275 ft (83.8 m)
Roadway width203 ft (62 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300,000 (2022)
Projected traffic332,200 by 2042
Trucks5%
Lanes on structure15
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 Interstate 110 over 37th Street built?

It was built in 1996, making it 29 years old in 2025.

What condition is Interstate 110 over 37th Street 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 June 2022.

How much traffic does Interstate 110 over 37th Street carry?

About 300,000 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Interstate 110 over 37th Street?

The structure is 326 ft (99.3 m) long with a longest span of 95 ft (29 m) and a deck 275 ft wide.

Who owns Interstate 110 over 37th Street?

It is owned by the State Highway Agency.