US Bridges

Arroyo Drive over State Route 110

Good

Los Angeles County, California · 07-LA-110-30.30-SPAS · Structure no. 53 0433

Built
1938
87 years old
Condition
Good
inspected January 2025
Type
Tee Beam
Concrete Continuous
Length
143 ft
3 main spans
Daily traffic
4,000
2021 count
Owner
State
State Highway Agency

About this bridge

Arroyo Drive over State Route 110 is a concrete continuous tee beam carrying Arroyo Drive over State Route 110 in Los Angeles County, California. It was built in 1938, so it is 87 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 4,000 vehicles a day, roughly 1% of them trucks, projected to reach 4,672 by 2047. The structure is 143 ft (43.6 m) long and 53 ft wide.

CarriesArroyo Drive
CrossesState Route 110
Location07-LA-110-30.30-SPAS
RouteCity Street 0
Coordinates34.11862, -118.16551
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 inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating63.2 US tons
Inventory rating37.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length143 ft (43.6 m)
Longest span93 ft (28.3 m)
Deck width53 ft (16.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,000 (2021)
Projected traffic4,672 by 2047
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Arroyo Drive over State Route 110 built?

It was built in 1938, making it 87 years old in 2025.

What condition is Arroyo Drive over State Route 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 January 2025.

How much traffic does Arroyo Drive over State Route 110 carry?

About 4,000 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Arroyo Drive over State Route 110?

The structure is 143 ft (43.6 m) long with a longest span of 93 ft (28.3 m) and a deck 53 ft wide.

Who owns Arroyo Drive over State Route 110?

It is owned by the State Highway Agency.