US Bridges

State Route 71 SB over State Route 60 & Ramps

Good

Los Angeles County, California · 07-LA-071-R4.31-POM · Structure no. 53 2745R

Built
1997
28 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
869 ft
5 main spans
Daily traffic
44,000
2020 count
Owner
State
State Highway Agency

About this bridge

State Route 71 SB over State Route 60 & Ramps is a prestressed concrete continuous box beam or girders - single or spread carrying State Route 71 SB over State Route 60 & Ramps in Los Angeles County, California. It was built in 1997, so it is 28 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 44,000 vehicles a day, roughly 6% of them trucks, projected to reach 71,086 by 2043. The structure is 869 ft (265 m) long and 69 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesState Route 71 SB
CrossesState Route 60 & Ramps
Location07-LA-071-R4.31-POM
RouteState Highway 71
Coordinates34.02428, -117.75074
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionOctober 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 alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length869 ft (265 m)
Longest span182 ft (55.5 m)
Deck width69 ft (20.9 m)
Roadway width65 ft (19.9 m)
Vertical clearance over deck17 ft (5.3 m)

Traffic and service

Average daily traffic44,000 (2020)
Projected traffic71,086 by 2043
Trucks6%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed2.5 mi (4 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was State Route 71 SB over State Route 60 & Ramps built?

It was built in 1997, making it 28 years old in 2025.

What condition is State Route 71 SB over State Route 60 & Ramps 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 October 2024.

How much traffic does State Route 71 SB over State Route 60 & Ramps carry?

About 44,000 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is State Route 71 SB over State Route 60 & Ramps?

The structure is 869 ft (265 m) long with a longest span of 182 ft (55.5 m) and a deck 69 ft wide.

Who owns State Route 71 SB over State Route 60 & Ramps?

It is owned by the State Highway Agency.