US Bridges

U.S. Highway 101 over Fallbrook Ave

Fair

Los Angeles County, California · 07-LA-101-26.45-LA · Structure no. 53 1066

Built
1957
68 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
97 ft
1 main span
Daily traffic
202,000
2018 count
Owner
State
State Highway Agency

About this bridge

U.S. Highway 101 over Fallbrook Ave is a concrete box beam or girders - multiple carrying U.S. Highway 101 over Fallbrook Ave in Los Angeles County, California. It was built in 1957, so it is 68 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 202,000 vehicles a day, roughly 10% of them trucks, projected to reach 234,306 by 2046. The structure is 97 ft (29.6 m) long and 115 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesU.S. Highway 101
CrossesFallbrook Ave
Location07-LA-101-26.45-LA
RouteU.S. Route 101
CountyLos Angeles County
StateCalifornia
Coordinates34.16475, -118.62317
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating63.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length97 ft (29.6 m)
Longest span94 ft (28.7 m)
Deck width115 ft (35.2 m)
Roadway width111 ft (33.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic202,000 (2018)
Projected traffic234,306 by 2046
Trucks10%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was U.S. Highway 101 over Fallbrook Ave built?

It was built in 1957, making it 68 years old in 2025.

What condition is U.S. Highway 101 over Fallbrook Ave 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 Fallbrook Ave carry?

About 202,000 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is U.S. Highway 101 over Fallbrook Ave?

The structure is 97 ft (29.6 m) long with a longest span of 94 ft (28.7 m) and a deck 115 ft wide.

Who owns U.S. Highway 101 over Fallbrook Ave?

It is owned by the State Highway Agency.