US Bridges

Hyperion Ave over Glendale Bl SB LA Riv

Fair

Los Angeles County, California · On Glendale Blvd · Structure no. 53C1881

Built
1929
96 years old
Condition
Fair
inspected April 2024
Type
Arch - Deck
Concrete
Length
518 ft
9 main spans
Daily traffic
35,874
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Hyperion Ave over Glendale Bl SB LA Riv is a concrete arch - deck carrying Hyperion Ave over Glendale Bl SB LA Riv in Los Angeles County, California. It was built in 1929, so it is 96 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 6 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 35,874 vehicles a day, roughly 4% of them trucks, projected to reach 39,024 by 2042. The structure is 518 ft (157.9 m) long and 68 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesHyperion Ave
CrossesGlendale Bl SB LA Riv
LocationOn Glendale Blvd
RouteCity Street 0
CountyLos Angeles County
StateCalifornia
Coordinates34.11304, -118.26579
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans9
Design loadH 20
Structure length518 ft (157.9 m)
Longest span68 ft (20.7 m)
Deck width68 ft (20.8 m)
Roadway width55 ft (16.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35,874 (2016)
Projected traffic39,024 by 2042
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and waterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Hyperion Ave over Glendale Bl SB LA Riv built?

It was built in 1929, making it 96 years old in 2025.

What condition is Hyperion Ave over Glendale Bl SB LA Riv 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 2024.

How much traffic does Hyperion Ave over Glendale Bl SB LA Riv carry?

About 35,874 vehicles per day (2016 count), of which roughly 4% are trucks.

How long is Hyperion Ave over Glendale Bl SB LA Riv?

The structure is 518 ft (157.9 m) long with a longest span of 68 ft (20.7 m) and a deck 68 ft wide.

Who owns Hyperion Ave over Glendale Bl SB LA Riv?

It is owned by the City or Municipal Highway Agency.