US Bridges

Parkway Calabasas over US 101

Good

Los Angeles County, California · 07-LA-101-28.29-LA · Structure no. 53 1680

Built
1965
60 years old, rebuilt 1996
Condition
Good
inspected May 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
271 ft
3 main spans
Daily traffic
15,000
2018 count
Owner
State
State Highway Agency

About this bridge

Parkway Calabasas over US 101 is a prestressed concrete continuous box beam or girders - multiple carrying Parkway Calabasas over US 101 in Los Angeles County, California. It was built in 1965 and reconstructed in 1996, so it is 60 years old, older 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 15,000 vehicles a day, roughly 1% of them trucks, projected to reach 22,001 by 2040. The structure is 271 ft (82.6 m) long and 76 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesParkway Calabasas
CrossesUS 101
Location07-LA-101-28.29-LA
RouteCity Street 0
Coordinates34.15316, -118.65182
Functional classUrban Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating78.3 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20 + Mod
Structure length271 ft (82.6 m)
Longest span84 ft (25.6 m)
Deck width76 ft (23.1 m)
Roadway width76 ft (23.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,000 (2018)
Projected traffic22,001 by 2040
Trucks1%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 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 Parkway Calabasas over US 101 built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1996.

What condition is Parkway Calabasas over US 101 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 May 2022.

How much traffic does Parkway Calabasas over US 101 carry?

About 15,000 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Parkway Calabasas over US 101?

The structure is 271 ft (82.6 m) long with a longest span of 84 ft (25.6 m) and a deck 76 ft wide.

Who owns Parkway Calabasas over US 101?

It is owned by the State Highway Agency.