US Bridges

Mountain Ave over Interstate 210

Good

Los Angeles County, California · 07-LA-210-R49.96-CLA · Structure no. 53 2872

Built
2001
24 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
241 ft
2 main spans
Daily traffic
2,000
2015 count
Owner
State
State Highway Agency

About this bridge

Mountain Ave over Interstate 210 is a concrete continuous box beam or girders - multiple carrying Mountain Ave over Interstate 210 in Los Angeles County, California. It was built in 2001, so it is 24 years old, younger 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 2,000 vehicles a day, roughly 2% of them trucks, projected to reach 2,628 by 2042. The structure is 241 ft (73.6 m) long and 68 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesMountain Ave
CrossesInterstate 210
Location07-LA-210-R49.96-CLA
RouteCity Street L0681
CountyLos Angeles County
StateCalifornia
Coordinates34.12058, -117.72908
Functional classUrban Local

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 2025
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 rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length241 ft (73.6 m)
Longest span122 ft (37.2 m)
Deck width68 ft (20.6 m)
Roadway width56 ft (17 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2015)
Projected traffic2,628 by 2042
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 Mountain Ave over Interstate 210 built?

It was built in 2001, making it 24 years old in 2025.

What condition is Mountain Ave over Interstate 210 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 2025.

How much traffic does Mountain Ave over Interstate 210 carry?

About 2,000 vehicles per day (2015 count), of which roughly 2% are trucks.

How long is Mountain Ave over Interstate 210?

The structure is 241 ft (73.6 m) long with a longest span of 122 ft (37.2 m) and a deck 68 ft wide.

Who owns Mountain Ave over Interstate 210?

It is owned by the State Highway Agency.