US Bridges

El SEGUNDO-S405 on over UP RR

Fair

Los Angeles County, California · 07-LA-405-20.16-HAW · Structure no. 53 2387K

Built
1989
36 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
117 ft
1 main span
Daily traffic
10,000
2019 count
Owner
State
State Highway Agency

About this bridge

El SEGUNDO-S405 on over UP RR is a prestressed concrete box beam or girders - multiple carrying El SEGUNDO-S405 on over UP RR in Los Angeles County, California. It was built in 1989, so it is 36 years old, younger 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 10,000 vehicles a day, roughly 2% of them trucks, projected to reach 13,140 by 2041. The structure is 117 ft (35.7 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesEl SEGUNDO-S405 on
CrossesUP RR
Location07-LA-405-20.16-HAW
RouteInterstate 405
Coordinates33.9152, -118.37095
Functional classUrban Principal Arterial - Interstate

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length117 ft (35.7 m)
Longest span114 ft (34.7 m)
Deck width30 ft (9.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2019)
Projected traffic13,140 by 2041
Trucks2%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was El SEGUNDO-S405 on over UP RR built?

It was built in 1989, making it 36 years old in 2025.

What condition is El SEGUNDO-S405 on over UP RR 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 El SEGUNDO-S405 on over UP RR carry?

About 10,000 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is El SEGUNDO-S405 on over UP RR?

The structure is 117 ft (35.7 m) long with a longest span of 114 ft (34.7 m) and a deck 30 ft wide.

Who owns El SEGUNDO-S405 on over UP RR?

It is owned by the State Highway Agency.