US Bridges

Interstate 210 EB over Altadena DR

Fair

Los Angeles County, California · 07-LA-210-R28.25-PAS · Structure no. 53 2278R

Built
1976
49 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
190 ft
2 main spans
Daily traffic
282,000
2021 count
Owner
State
State Highway Agency

About this bridge

Interstate 210 EB over Altadena DR is a concrete continuous box beam or girders - multiple carrying Interstate 210 EB over Altadena DR in Los Angeles County, California. It was built in 1976, so it is 49 years old, younger 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 282,000 vehicles a day, roughly 5% of them trucks, projected to reach 345,000 by 2045. The structure is 190 ft (57.9 m) long and 102 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 210 EB
CrossesAltadena DR
Location07-LA-210-R28.25-PAS
RouteInterstate 210
Coordinates34.15222, -118.09886
Functional classUrban Principal Arterial - Interstate

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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating48.9 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length190 ft (57.9 m)
Longest span95 ft (29 m)
Deck width102 ft (31.1 m)
Roadway width99 ft (30.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic282,000 (2021)
Projected traffic345,000 by 2045
Trucks5%
Lanes on structure7
Traffic directionOne-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 Interstate 210 EB over Altadena DR built?

It was built in 1976, making it 49 years old in 2025.

What condition is Interstate 210 EB over Altadena DR 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 August 2023.

How much traffic does Interstate 210 EB over Altadena DR carry?

About 282,000 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Interstate 210 EB over Altadena DR?

The structure is 190 ft (57.9 m) long with a longest span of 95 ft (29 m) and a deck 102 ft wide.

Who owns Interstate 210 EB over Altadena DR?

It is owned by the State Highway Agency.