US Bridges

ATWOOD-E105 Onrp over Imperial HWY EB

Fair

Los Angeles County, California · 07-LA-105-R1.20-LA · Structure no. 53 2738S

Built
1996
29 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
573 ft
3 main spans
Daily traffic
2,091
2016 count
Owner
State
State Highway Agency

About this bridge

ATWOOD-E105 Onrp over Imperial HWY EB is a prestressed concrete continuous box beam or girders - multiple carrying ATWOOD-E105 Onrp over Imperial HWY EB in Los Angeles County, California. It was built in 1996, so it is 29 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 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 2,091 vehicles a day, roughly 1% of them trucks, projected to reach 2,384 by 2042. The structure is 573 ft (174.7 m) long and 35 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesATWOOD-E105 Onrp
CrossesImperial HWY EB
Location07-LA-105-R1.20-LA
RouteInterstate 105
CountyLos Angeles County
StateCalifornia
Coordinates33.92943, -118.38517
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 inspectionApril 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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+3 approach)
Design loadHS 20 + Mod
Structure length573 ft (174.7 m)
Longest span160 ft (48.8 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,091 (2016)
Projected traffic2,384 by 2042
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was ATWOOD-E105 Onrp over Imperial HWY EB built?

It was built in 1996, making it 29 years old in 2025.

What condition is ATWOOD-E105 Onrp over Imperial HWY EB 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 April 2024.

How much traffic does ATWOOD-E105 Onrp over Imperial HWY EB carry?

About 2,091 vehicles per day (2016 count), of which roughly 1% are trucks.

How long is ATWOOD-E105 Onrp over Imperial HWY EB?

The structure is 573 ft (174.7 m) long with a longest span of 160 ft (48.8 m) and a deck 35 ft wide.

Who owns ATWOOD-E105 Onrp over Imperial HWY EB?

It is owned by the State Highway Agency.