US Bridges

E10-N405 Conn over 10 405 Sts Metro RR

Fair

Los Angeles County, California · 07-LA-010-R5.28-LA · Structure no. 53 1627G

Built
1963
62 years old
Condition
Fair
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
2,596 ft
6 main spans
Daily traffic
24,110
2014 count
Owner
State
State Highway Agency

About this bridge

E10-N405 Conn over 10 405 Sts Metro RR is a prestressed concrete continuous box beam or girders - multiple carrying E10-N405 Conn over 10 405 Sts Metro RR in Los Angeles County, California. It was built in 1963, so it is 62 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 5 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 24,110 vehicles a day, roughly 2% of them trucks, projected to reach 35,445 by 2044. The structure is 2,596 ft (791.4 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesE10-N405 Conn
Crosses10 405 Sts Metro RR
Location07-LA-010-R5.28-LA
RouteInterstate 10
CountyLos Angeles County
StateCalifornia
Coordinates34.03025, -118.43792
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating61 US tons
Inventory rating35.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6 (+19 approach)
Design loadHS 20
Structure length2,596 ft (791.4 m)
Longest span180 ft (55 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,110 (2014)
Projected traffic35,445 by 2044
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway and railroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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 E10-N405 Conn over 10 405 Sts Metro RR built?

It was built in 1963, making it 62 years old in 2025.

What condition is E10-N405 Conn over 10 405 Sts Metro 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 February 2024.

How much traffic does E10-N405 Conn over 10 405 Sts Metro RR carry?

About 24,110 vehicles per day (2014 count), of which roughly 2% are trucks.

How long is E10-N405 Conn over 10 405 Sts Metro RR?

The structure is 2,596 ft (791.4 m) long with a longest span of 180 ft (55 m) and a deck 34 ft wide.

Who owns E10-N405 Conn over 10 405 Sts Metro RR?

It is owned by the State Highway Agency.