US Bridges

Walnut ST over N710-E210 Connector Ramp

Fair

Los Angeles County, California · 07-LA-710-R32.69-PAS · Structure no. 53 2258

Built
1975
50 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
152 ft
1 main span
Daily traffic
8,900
2019 count
Owner
State
State Highway Agency

About this bridge

Walnut ST over N710-E210 Connector Ramp is a prestressed concrete box beam or girders - multiple carrying Walnut ST over N710-E210 Connector Ramp in Los Angeles County, California. It was built in 1975, so it is 50 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 8,900 vehicles a day, roughly 5% of them trucks, projected to reach 9,331 by 2042. The structure is 152 ft (46.4 m) long and 82 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesWalnut ST
CrossesN710-E210 Connector Ramp
Location07-LA-710-R32.69-PAS
RouteCity Street 0L727
CountyLos Angeles County
StateCalifornia
Coordinates34.14954, -118.15444
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.9 US tons
Inventory rating55 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length152 ft (46.4 m)
Longest span150 ft (45.7 m)
Deck width82 ft (25 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,900 (2019)
Projected traffic9,331 by 2042
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 Walnut ST over N710-E210 Connector Ramp built?

It was built in 1975, making it 50 years old in 2025.

What condition is Walnut ST over N710-E210 Connector Ramp 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 September 2024.

How much traffic does Walnut ST over N710-E210 Connector Ramp carry?

About 8,900 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Walnut ST over N710-E210 Connector Ramp?

The structure is 152 ft (46.4 m) long with a longest span of 150 ft (45.7 m) and a deck 82 ft wide.

Who owns Walnut ST over N710-E210 Connector Ramp?

It is owned by the State Highway Agency.