US Bridges

Sierra Leone Ave over Private Drn #208

Good

Los Angeles County, California · 0.1MI S/O Colima RD · Structure no. 53C1703

Built
1961
64 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
2,666
2017 count
Owner
County
County Highway Agency

About this bridge

Sierra Leone Ave over Private Drn #208 is a concrete culvert carrying Sierra Leone Ave over Private Drn #208 in Los Angeles County, California. It was built in 1961, so it is 64 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 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 2,666 vehicles a day, roughly 2% of them trucks, projected to reach 2,933 by 2041. The structure is 22 ft (6.7 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSierra Leone Ave
CrossesPrivate Drn #208
Location0.1MI S/O Colima RD
RouteCounty Highway 0
Coordinates33.98687, -117.90128
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum 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 rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,666 (2017)
Projected traffic2,933 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 Leone Ave over Private Drn #208 built?

It was built in 1961, making it 64 years old in 2025.

What condition is Sierra Leone Ave over Private Drn #208 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 July 2024.

How much traffic does Sierra Leone Ave over Private Drn #208 carry?

About 2,666 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Sierra Leone Ave over Private Drn #208?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 43 ft wide.

Who owns Sierra Leone Ave over Private Drn #208?

It is owned by the County Highway Agency.