US Bridges

Interstate 110 over 138th Street Storm Drain

Good

Los Angeles County, California · 07-LA-110-12.17-LA · Structure no. 53 1575M

Built
1960
65 years old, rebuilt 1995
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
47 ft
4 main spans
Daily traffic
253,000
2024 count
Owner
State
State Highway Agency

About this bridge

Interstate 110 over 138th Street Storm Drain is a concrete culvert carrying Interstate 110 over 138th Street Storm Drain in Los Angeles County, California. It was built in 1960 and reconstructed in 1995, so it is 65 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 253,000 vehicles a day, roughly 7% of them trucks, projected to reach 249,233 by 2042. The structure is 47 ft (14.3 m) long and 184 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 110
Crosses138th Street Storm Drain
Location07-LA-110-12.17-LA
RouteInterstate 110
Coordinates33.90604, -118.28619
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
Channel and channel protection9 ExcellentNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
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
DeckNot applicable
Main spans4
Design loadHS 20
Structure length47 ft (14.3 m)
Longest span12 ft (3.7 m)
Deck width184 ft (56.1 m)
Roadway width184 ft (56.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic253,000 (2024)
Projected traffic249,233 by 2042
Trucks7%
Lanes on structure13
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Interstate 110 over 138th Street Storm Drain built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1995.

What condition is Interstate 110 over 138th Street Storm Drain 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 May 2024.

How much traffic does Interstate 110 over 138th Street Storm Drain carry?

About 253,000 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Interstate 110 over 138th Street Storm Drain?

The structure is 47 ft (14.3 m) long with a longest span of 12 ft (3.7 m) and a deck 184 ft wide.

Who owns Interstate 110 over 138th Street Storm Drain?

It is owned by the State Highway Agency.