US Bridges

State Route 103 over UP RR & N103-FORD Av Off

Poor

Los Angeles County, California · 07-LA-103-0.07-LA · Structure no. 53 2626

Built
1947
78 years old
Condition
Poor
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
1,098 ft
15 main spans
Daily traffic
14,427
2018 count
Owner
State
State Highway Agency

About this bridge

State Route 103 over UP RR & N103-FORD Av Off is a steel stringer/multi-beam or girder carrying State Route 103 over UP RR & N103-FORD Av Off in Los Angeles County, California. It was built in 1947, so it is 78 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 14,427 vehicles a day, roughly 56% of them trucks, projected to reach 15,288 by 2042. The structure is 1,098 ft (334.6 m) long and 80 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesState Route 103
CrossesUP RR & N103-FORD Av Off
Location07-LA-103-0.07-LA
RouteState Highway 103
CountyLos Angeles County
StateCalifornia
Coordinates33.77464, -118.24003
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating38.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans15
Design loadUnknown
Structure length1,098 ft (334.6 m)
Longest span74 ft (22.6 m)
Deck width80 ft (24.4 m)
Roadway width72 ft (21.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,427 (2018)
Projected traffic15,288 by 2042
Trucks56%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$31.5 million (2017 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was State Route 103 over UP RR & N103-FORD Av Off built?

It was built in 1947, making it 78 years old in 2025.

What condition is State Route 103 over UP RR & N103-FORD Av Off 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 2024.

How much traffic does State Route 103 over UP RR & N103-FORD Av Off carry?

About 14,427 vehicles per day (2018 count), of which roughly 56% are trucks.

How long is State Route 103 over UP RR & N103-FORD Av Off?

The structure is 1,098 ft (334.6 m) long with a longest span of 74 ft (22.6 m) and a deck 80 ft wide.

Who owns State Route 103 over UP RR & N103-FORD Av Off?

It is owned by the State Highway Agency.