US Bridges

Seventh Street over Route 101

Fair

Los Angeles County, California · 07-LA-101-S0.02-LA · Structure no. 53 0596

Built
1948
77 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
209 ft
3 main spans
Daily traffic
50,000
2021 count
Owner
State
State Highway Agency

About this bridge

Seventh Street over Route 101 is a concrete continuous box beam or girders - multiple carrying Seventh Street over Route 101 in Los Angeles County, California. It was built in 1948, so it is 77 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 50,000 vehicles a day, roughly 5% of them trucks, projected to reach 65,000 by 2043. The structure is 209 ft (63.7 m) long and 82 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSeventh Street
CrossesRoute 101
Location07-LA-101-S0.02-LA
RouteCity Street 0L278
Coordinates34.03408, -118.22116
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.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.8 US tons
Inventory rating28.2 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length209 ft (63.7 m)
Longest span66 ft (20.1 m)
Deck width82 ft (25 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50,000 (2021)
Projected traffic65,000 by 2043
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Seventh Street over Route 101 built?

It was built in 1948, making it 77 years old in 2025.

What condition is Seventh Street over Route 101 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 April 2023.

How much traffic does Seventh Street over Route 101 carry?

About 50,000 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Seventh Street over Route 101?

The structure is 209 ft (63.7 m) long with a longest span of 66 ft (20.1 m) and a deck 82 ft wide.

Who owns Seventh Street over Route 101?

It is owned by the State Highway Agency.