US Bridges

IMPERIAL-S110 Onrp over S110-W105 Connector Ramp

Good

Los Angeles County, California · 07-LA-110-13.89-LA · Structure no. 53 2683K

Built
1987
38 years old
Condition
Good
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
282 ft
3 main spans
Daily traffic
14,700
2022 count
Owner
State
State Highway Agency

About this bridge

IMPERIAL-S110 Onrp over S110-W105 Connector Ramp is a prestressed concrete continuous box beam or girders - multiple carrying IMPERIAL-S110 Onrp over S110-W105 Connector Ramp in Los Angeles County, California. It was built in 1987, so it is 38 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 14,700 vehicles a day, roughly 1% of them trucks, projected to reach 16,394 by 2044. The structure is 282 ft (86 m) long and 35 ft wide.

CarriesIMPERIAL-S110 Onrp
CrossesS110-W105 Connector Ramp
Location07-LA-110-13.89-LA
RouteInterstate 110
Coordinates33.93004, -118.28154
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length282 ft (86 m)
Longest span125 ft (38.1 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,700 (2022)
Projected traffic16,394 by 2044
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 IMPERIAL-S110 Onrp over S110-W105 Connector Ramp built?

It was built in 1987, making it 38 years old in 2025.

What condition is IMPERIAL-S110 Onrp over S110-W105 Connector Ramp in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.

How much traffic does IMPERIAL-S110 Onrp over S110-W105 Connector Ramp carry?

About 14,700 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is IMPERIAL-S110 Onrp over S110-W105 Connector Ramp?

The structure is 282 ft (86 m) long with a longest span of 125 ft (38.1 m) and a deck 35 ft wide.

Who owns IMPERIAL-S110 Onrp over S110-W105 Connector Ramp?

It is owned by the State Highway Agency.