US Bridges

Avenue 26 over ST RTE 110 & Arroyo Seco

Fair

Los Angeles County, California · 07-LA-110-25.91-LA · Structure no. 53 0372

Built
1925
100 years old, rebuilt 1939
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete
Length
88 ft
2 main spans
Daily traffic
20,000
2020 count
Owner
State
State Highway Agency

About this bridge

Avenue 26 over ST RTE 110 & Arroyo Seco is a concrete tee beam carrying Avenue 26 over ST RTE 110 & Arroyo Seco in Los Angeles County, California. It was built in 1925 and reconstructed in 1939, so it is 100 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 20,000 vehicles a day, roughly 1% of them trucks, projected to reach 24,593 by 2046. The structure is 88 ft (26.8 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesAvenue 26
CrossesST RTE 110 & Arroyo Seco
Location07-LA-110-25.91-LA
RouteCity Street 0
CountyLos Angeles County
StateCalifornia
Coordinates34.08337, -118.22194
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating66.8 US tons
Inventory rating40 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 15
Structure length88 ft (26.8 m)
Longest span43 ft (13.1 m)
Deck width55 ft (16.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,000 (2020)
Projected traffic24,593 by 2046
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Avenue 26 over ST RTE 110 & Arroyo Seco built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1939.

What condition is Avenue 26 over ST RTE 110 & Arroyo Seco in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does Avenue 26 over ST RTE 110 & Arroyo Seco carry?

About 20,000 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Avenue 26 over ST RTE 110 & Arroyo Seco?

The structure is 88 ft (26.8 m) long with a longest span of 43 ft (13.1 m) and a deck 55 ft wide.

Who owns Avenue 26 over ST RTE 110 & Arroyo Seco?

It is owned by the State Highway Agency.