US Bridges

Mountain ST over SR 2

Good

Los Angeles County, California · 07-LA-002-R20.05-GNDL · Structure no. 53 1893

Built
1975
50 years old
Condition
Good
inspected January 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
232 ft
2 main spans
Daily traffic
4,000
2021 count
Owner
State
State Highway Agency

About this bridge

Mountain ST over SR 2 is a concrete continuous box beam or girders - multiple carrying Mountain ST over SR 2 in Los Angeles County, California. It was built in 1975, so it is 50 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 4,000 vehicles a day, roughly 2% of them trucks, projected to reach 6,167 by 2046. The structure is 232 ft (70.7 m) long and 94 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMountain ST
CrossesSR 2
Location07-LA-002-R20.05-GNDL
RouteCity Street 0Q288
CountyLos Angeles County
StateCalifornia
Coordinates34.16424, -118.22532
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 2024
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 alignment9: Superior to present desirable criteria
Operating rating87.2 US tons
Inventory rating67.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length232 ft (70.7 m)
Longest span125 ft (38.1 m)
Deck width94 ft (28.7 m)
Roadway width78 ft (23.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,000 (2021)
Projected traffic6,167 by 2046
Trucks2%
Lanes on structure6
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 ST over SR 2 built?

It was built in 1975, making it 50 years old in 2025.

What condition is Mountain ST over SR 2 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 Mountain ST over SR 2 carry?

About 4,000 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Mountain ST over SR 2?

The structure is 232 ft (70.7 m) long with a longest span of 125 ft (38.1 m) and a deck 94 ft wide.

Who owns Mountain ST over SR 2?

It is owned by the State Highway Agency.