US Bridges

Leadora Ave over Little Dalton Wash

Fair

Los Angeles County, California · 1.3MI E/O Grand Ave · Structure no. 53C0706

Built
1961
64 years old
Condition
Fair
inspected January 2023
Type
Culvert
Concrete
Length
25 ft
1 main span
Daily traffic
1,849
2013 count
Owner
City
City or Municipal Highway Agency

About this bridge

Leadora Ave over Little Dalton Wash is a concrete culvert carrying Leadora Ave over Little Dalton Wash in Los Angeles County, California. It was built in 1961, so it is 64 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 1,849 vehicles a day, roughly 2% of them trucks, projected to reach 2,075 by 2045. The structure is 25 ft (7.6 m) long and 51 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesLeadora Ave
CrossesLittle Dalton Wash
Location1.3MI E/O Grand Ave
RouteCity Street 0
CountyLos Angeles County
StateCalifornia
Coordinates34.14328, -117.85102
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span22 ft (6.8 m)
Deck width51 ft (15.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,849 (2013)
Projected traffic2,075 by 2045
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Leadora Ave over Little Dalton Wash built?

It was built in 1961, making it 64 years old in 2025.

What condition is Leadora Ave over Little Dalton Wash 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 January 2023.

How much traffic does Leadora Ave over Little Dalton Wash carry?

About 1,849 vehicles per day (2013 count), of which roughly 2% are trucks.

How long is Leadora Ave over Little Dalton Wash?

The structure is 25 ft (7.6 m) long with a longest span of 22 ft (6.8 m) and a deck 51 ft wide.

Who owns Leadora Ave over Little Dalton Wash?

It is owned by the City or Municipal Highway Agency.