US Bridges

State Route 110 over 1st Street

Good

Los Angeles County, California · 07-LA-110-23.34-LA · Structure no. 53 0682

Built
1950
75 years old, rebuilt 1979
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
132 ft
1 main span
Daily traffic
270,000
2022 count
Owner
State
State Highway Agency

About this bridge

State Route 110 over 1st Street is a concrete box beam or girders - multiple carrying State Route 110 over 1st Street in Los Angeles County, California. It was built in 1950 and reconstructed in 1979, so it is 75 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 270,000 vehicles a day, roughly 3% of them trucks, projected to reach 297,777 by 2044. The structure is 132 ft (40.2 m) long and 169 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Route 110
Crosses1st Street
Location07-LA-110-23.34-LA
RouteState Highway 110
Coordinates34.05844, -118.25329
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment9: Superior to present desirable criteria
Operating rating101.7 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length132 ft (40.2 m)
Longest span123 ft (37.5 m)
Deck width169 ft (51.4 m)
Roadway width166 ft (50.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic270,000 (2022)
Projected traffic297,777 by 2044
Trucks3%
Lanes on structure13
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 State Route 110 over 1st Street built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1979.

What condition is State Route 110 over 1st 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 October 2024.

How much traffic does State Route 110 over 1st Street carry?

About 270,000 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is State Route 110 over 1st Street?

The structure is 132 ft (40.2 m) long with a longest span of 123 ft (37.5 m) and a deck 169 ft wide.

Who owns State Route 110 over 1st Street?

It is owned by the State Highway Agency.