US Bridges

U.S. Highway 101 over Silver Lake Blvd

Good

Los Angeles County, California · 07-LA-101-3.76-LA · Structure no. 53 0613

Built
1948
77 years old
Condition
Good
inspected January 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
310 ft
4 main spans
Daily traffic
265,000
2020 count
Owner
State
State Highway Agency

About this bridge

U.S. Highway 101 over Silver Lake Blvd is a concrete continuous box beam or girders - multiple carrying U.S. Highway 101 over Silver Lake Blvd 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 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 265,000 vehicles a day, roughly 8% of them trucks, projected to reach 335,444 by 2042. The structure is 310 ft (94.5 m) long and 111 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesU.S. Highway 101
CrossesSilver Lake Blvd
Location07-LA-101-3.76-LA
RouteU.S. Route 101
Coordinates34.07716, -118.28093
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionJanuary 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 rating96.8 US tons
Inventory rating57.9 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length310 ft (94.5 m)
Longest span83 ft (25.3 m)
Deck width111 ft (33.7 m)
Roadway width96 ft (29.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic265,000 (2020)
Projected traffic335,444 by 2042
Trucks8%
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 Silver Lake Blvd built?

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

What condition is U.S. Highway 101 over Silver Lake Blvd 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 January 2024.

How much traffic does U.S. Highway 101 over Silver Lake Blvd carry?

About 265,000 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is U.S. Highway 101 over Silver Lake Blvd?

The structure is 310 ft (94.5 m) long with a longest span of 83 ft (25.3 m) and a deck 111 ft wide.

Who owns U.S. Highway 101 over Silver Lake Blvd?

It is owned by the State Highway Agency.