US Bridges

10th ST W over Amargosa Crk

Good

Los Angeles County, California · 0.1MI S/O Rncho Vsta Bl · Structure no. 53C1817

Built
1991
34 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
47 ft
2 main spans
Daily traffic
38,480
2014 count
Owner
City
City or Municipal Highway Agency

About this bridge

10th ST W over Amargosa Crk is a concrete culvert carrying 10th ST W over Amargosa Crk in Los Angeles County, California. It was built in 1991, so it is 34 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 38,480 vehicles a day, roughly 4% of them trucks, projected to reach 46,176 by 2044. The structure is 47 ft (14.4 m) long and 95 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries10th ST W
CrossesAmargosa Crk
Location0.1MI S/O Rncho Vsta Bl
RouteCity Street 0Q002
Coordinates34.60089, -118.14752
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
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length47 ft (14.4 m)
Longest span16 ft (4.8 m)
Deck width95 ft (29.1 m)
Roadway width81 ft (24.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,480 (2014)
Projected traffic46,176 by 2044
Trucks4%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 10th ST W over Amargosa Crk built?

It was built in 1991, making it 34 years old in 2025.

What condition is 10th ST W over Amargosa Crk 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 June 2024.

How much traffic does 10th ST W over Amargosa Crk carry?

About 38,480 vehicles per day (2014 count), of which roughly 4% are trucks.

How long is 10th ST W over Amargosa Crk?

The structure is 47 ft (14.4 m) long with a longest span of 16 ft (4.8 m) and a deck 95 ft wide.

Who owns 10th ST W over Amargosa Crk?

It is owned by the City or Municipal Highway Agency.