US Bridges

Sierra HWY over Solemint Oh Sptco

Good

Los Angeles County, California · 0.5MI S/O Soledad Cyn RD · Structure no. 53C1776

Built
1968
57 years old, rebuilt 2008
Condition
Good
inspected February 2022
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
226 ft
4 main spans
Daily traffic
35,700
2014 count
Owner
County
County Highway Agency

About this bridge

Sierra HWY over Solemint Oh Sptco is a concrete continuous box beam or girders - multiple carrying Sierra HWY over Solemint Oh Sptco in Los Angeles County, California. It was built in 1968 and reconstructed in 2008, so it is 57 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 35,700 vehicles a day, roughly 10% of them trucks, projected to reach 36,000 by 2042. The structure is 226 ft (69 m) long and 108 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSierra HWY
CrossesSolemint Oh Sptco
Location0.5MI S/O Soledad Cyn RD
RouteCity Street OL639
Coordinates34.40894, -118.46003
Functional classUrban Other Principal Arterial

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.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionFebruary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42.1 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length226 ft (69 m)
Longest span66 ft (20.1 m)
Deck width108 ft (32.8 m)
Roadway width74 ft (22.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic35,700 (2014)
Projected traffic36,000 by 2042
Trucks10%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad and waterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sierra HWY over Solemint Oh Sptco built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2008.

What condition is Sierra HWY over Solemint Oh Sptco 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 February 2022.

How much traffic does Sierra HWY over Solemint Oh Sptco carry?

About 35,700 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is Sierra HWY over Solemint Oh Sptco?

The structure is 226 ft (69 m) long with a longest span of 66 ft (20.1 m) and a deck 108 ft wide.

Who owns Sierra HWY over Solemint Oh Sptco?

It is owned by the County Highway Agency.