US Bridges

149th ST over Interstate 110

Good

Los Angeles County, California · 07-LA-110-11.52-LA · Structure no. 53 0952

Built
1995
30 years old
Condition
Good
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
228 ft
2 main spans
Daily traffic
2,770
2022 count
Owner
State
State Highway Agency

About this bridge

149th ST over Interstate 110 is a prestressed concrete continuous box beam or girders - multiple carrying 149th ST over Interstate 110 in Los Angeles County, California. It was built in 1995, so it is 30 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 2,770 vehicles a day, roughly 1% of them trucks, projected to reach 3,342 by 2044. The structure is 228 ft (69.4 m) long and 66 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Carries149th ST
CrossesInterstate 110
Location07-LA-110-11.52-LA
RouteCity Street 0
Coordinates33.89634, -118.2866
Functional classUrban Collector

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 2024
Inspection intervalevery 24 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 spans2
Design loadHS 20 + Mod
Structure length228 ft (69.4 m)
Longest span114 ft (34.8 m)
Deck width66 ft (20.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,770 (2022)
Projected traffic3,342 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed0.6 mi (1 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 149th ST over Interstate 110 built?

It was built in 1995, making it 30 years old in 2025.

What condition is 149th ST over Interstate 110 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 2024.

How much traffic does 149th ST over Interstate 110 carry?

About 2,770 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is 149th ST over Interstate 110?

The structure is 228 ft (69.4 m) long with a longest span of 114 ft (34.8 m) and a deck 66 ft wide.

Who owns 149th ST over Interstate 110?

It is owned by the State Highway Agency.