US Bridges

Barranca ST over Walnut Crk

Fair

Los Angeles County, California · 100FT S/O I-10 Fwy · Structure no. 53C0191

Built
1975
50 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
67 ft
1 main span
Daily traffic
15,526
2013 count
Owner
City
City or Municipal Highway Agency

About this bridge

Barranca ST over Walnut Crk is a prestressed concrete stringer/multi-beam or girder carrying Barranca ST over Walnut Crk 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 15,526 vehicles a day, roughly 1% of them trucks, projected to reach 18,631 by 2043. The structure is 67 ft (20.4 m) long and 76 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesBarranca ST
CrossesWalnut Crk
Location100FT S/O I-10 Fwy
RouteCity Street 0L380
CountyLos Angeles County
StateCalifornia
Coordinates34.07075, -117.88117
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating41.1 US tons
Inventory rating22.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length67 ft (20.4 m)
Longest span65 ft (19.8 m)
Deck width76 ft (23.1 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,526 (2013)
Projected traffic18,631 by 2043
Trucks1%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Barranca ST over Walnut Crk built?

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

What condition is Barranca ST over Walnut Crk 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 November 2023.

How much traffic does Barranca ST over Walnut Crk carry?

About 15,526 vehicles per day (2013 count), of which roughly 1% are trucks.

How long is Barranca ST over Walnut Crk?

The structure is 67 ft (20.4 m) long with a longest span of 65 ft (19.8 m) and a deck 76 ft wide.

Who owns Barranca ST over Walnut Crk?

It is owned by the City or Municipal Highway Agency.