US Bridges

Three Palms ST over Hacienda Crk

Good

Los Angeles County, California · 0.2MI W/O Hacienda Blvd · Structure no. 53C1524

Built
1968
57 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete
Length
26 ft
1 main span
Daily traffic
29,157
2017 count
Owner
County
County Highway Agency

About this bridge

Three Palms ST over Hacienda Crk is a concrete culvert carrying Three Palms ST over Hacienda Crk in Los Angeles County, California. It was built in 1968, 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 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 29,157 vehicles a day, roughly 1% of them trucks, projected to reach 34,989 by 2043. The structure is 26 ft (7.9 m) long and 58 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesThree Palms ST
CrossesHacienda Crk
Location0.2MI W/O Hacienda Blvd
RouteCounty Highway 0QS99
Coordinates34.00637, -117.96878
Functional classUrban Collector

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 protection9 ExcellentNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionDecember 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width58 ft (17.7 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,157 (2017)
Projected traffic34,989 by 2043
Trucks1%
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 Three Palms ST over Hacienda Crk built?

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

What condition is Three Palms ST over Hacienda 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 December 2024.

How much traffic does Three Palms ST over Hacienda Crk carry?

About 29,157 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Three Palms ST over Hacienda Crk?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 58 ft wide.

Who owns Three Palms ST over Hacienda Crk?

It is owned by the County Highway Agency.