US Bridges

Wilmington Ave over Compton Crk

PoorPosted for load

Los Angeles County, California · 0.5MI S/O Rosecrans Ave · Structure no. 53C0907

Built
1938
87 years old
Condition
Poor
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
109 ft
2 main spans
Daily traffic
29,520
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Wilmington Ave over Compton Crk is a steel stringer/multi-beam or girder carrying Wilmington Ave over Compton Crk 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 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. Its operating status is: posted for load restriction.

It carries about 29,520 vehicles a day, roughly 4% of them trucks, projected to reach 35,420 by 2044. The structure is 109 ft (33.3 m) long and 90 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesWilmington Ave
CrossesCompton Crk
Location0.5MI S/O Rosecrans Ave
RouteCity Street 0
Coordinates33.89719, -118.23754
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 6 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.3 US tons
Inventory rating13.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length109 ft (33.3 m)
Longest span58 ft (17.7 m)
Deck width90 ft (27.5 m)
Roadway width65 ft (19.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,520 (2016)
Projected traffic35,420 by 2044
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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$3.5 million (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Wilmington Ave over Compton Crk built?

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

What condition is Wilmington Ave over Compton Crk 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 February 2025.

How much traffic does Wilmington Ave over Compton Crk carry?

About 29,520 vehicles per day (2016 count), of which roughly 4% are trucks.

How long is Wilmington Ave over Compton Crk?

The structure is 109 ft (33.3 m) long with a longest span of 58 ft (17.7 m) and a deck 90 ft wide.

Who owns Wilmington Ave over Compton Crk?

It is owned by the City or Municipal Highway Agency.