US Bridges

U.S. Highway 101 over Medea Creek

Fair

Los Angeles County, California · 07-LA-101-34.82-AGRH · Structure no. 53 0002

Built
1949
76 years old, rebuilt 2007
Condition
Fair
inspected May 2024
Type
Slab
Concrete Continuous
Length
107 ft
4 main spans
Daily traffic
160,000
2018 count
Owner
State
State Highway Agency

About this bridge

U.S. Highway 101 over Medea Creek is a concrete continuous slab carrying U.S. Highway 101 over Medea Creek in Los Angeles County, California. It was built in 1949 and reconstructed in 2007, so it is 76 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 160,000 vehicles a day, roughly 10% of them trucks, projected to reach 207,078 by 2045. The structure is 107 ft (32.6 m) long and 178 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesU.S. Highway 101
CrossesMedea Creek
Location07-LA-101-34.82-AGRH
RouteU.S. Route 101
Coordinates34.1458, -118.75742
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 alignment8: Equal to present desirable criteria
Operating rating67.1 US tons
Inventory rating40.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length107 ft (32.6 m)
Longest span26 ft (7.9 m)
Deck width178 ft (54.3 m)
Roadway width174 ft (53 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160,000 (2018)
Projected traffic207,078 by 2045
Trucks10%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was U.S. Highway 101 over Medea Creek built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 2007.

What condition is U.S. Highway 101 over Medea 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 May 2024.

How much traffic does U.S. Highway 101 over Medea Creek carry?

About 160,000 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is U.S. Highway 101 over Medea Creek?

The structure is 107 ft (32.6 m) long with a longest span of 26 ft (7.9 m) and a deck 178 ft wide.

Who owns U.S. Highway 101 over Medea Creek?

It is owned by the State Highway Agency.