US Bridges

State Route 1 over Corral Creek

Fair

Los Angeles County, California · 07-LA-001-49.89 · Structure no. 53 0031

Built
1926
99 years old, rebuilt 1938
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
62 ft
2 main spans
Daily traffic
32,700
2017 count
Owner
State
State Highway Agency

About this bridge

State Route 1 over Corral Creek is a concrete slab carrying State Route 1 over Corral Creek in Los Angeles County, California. It was built in 1926 and reconstructed in 1938, so it is 99 years old, older 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 32,700 vehicles a day, roughly 3% of them trucks, projected to reach 43,200 by 2040. The structure is 62 ft (18.9 m) long and 84 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesState Route 1
CrossesCorral Creek
Location07-LA-001-49.89
RouteState Highway 1
CountyLos Angeles County
StateCalifornia
Coordinates34.03351, -118.73411
Functional classUrban Other Principal 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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 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 geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating53.9 US tons
Inventory rating32.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2 (+1 approach)
Design loadHS 15
Structure length62 ft (18.9 m)
Longest span30 ft (9.1 m)
Deck width84 ft (25.6 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,700 (2017)
Projected traffic43,200 by 2040
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed14.3 mi (23 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 1 over Corral Creek built?

It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1938.

What condition is State Route 1 over Corral Creek 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 August 2023.

How much traffic does State Route 1 over Corral Creek carry?

About 32,700 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is State Route 1 over Corral Creek?

The structure is 62 ft (18.9 m) long with a longest span of 30 ft (9.1 m) and a deck 84 ft wide.

Who owns State Route 1 over Corral Creek?

It is owned by the State Highway Agency.