US Bridges

Gage Ave over Los Angeles Riv

Poor

Los Angeles County, California · 0.1MI W/O I-710 Fwy · Structure no. 53C0159

Built
1940
85 years old
Condition
Poor
inspected December 2023
Type
Tee Beam
Concrete Continuous
Length
476 ft
5 main spans
Daily traffic
27,454
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Gage Ave over Los Angeles Riv is a concrete continuous tee beam carrying Gage Ave over Los Angeles Riv in Los Angeles County, California. It was built in 1940, so it is 85 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 27,454 vehicles a day, roughly 5% of them trucks, projected to reach 32,945 by 2041. The structure is 476 ft (145.1 m) long and 56 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesGage Ave
CrossesLos Angeles Riv
Location0.1MI W/O I-710 Fwy
RouteCity Street 0L123
Coordinates33.97617, -118.17004
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating37.5 US tons
Inventory rating22.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadUnknown
Structure length476 ft (145.1 m)
Longest span100 ft (30.5 m)
Deck width56 ft (17 m)
Roadway width44 ft (13.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,454 (2017)
Projected traffic32,945 by 2041
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$6.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Gage Ave over Los Angeles Riv built?

It was built in 1940, making it 85 years old in 2025.

What condition is Gage Ave over Los Angeles Riv in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2023.

How much traffic does Gage Ave over Los Angeles Riv carry?

About 27,454 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Gage Ave over Los Angeles Riv?

The structure is 476 ft (145.1 m) long with a longest span of 100 ft (30.5 m) and a deck 56 ft wide.

Who owns Gage Ave over Los Angeles Riv?

It is owned by the City or Municipal Highway Agency.