US Bridges

Bonita Ave over Thompson Crk

Good

Los Angeles County, California · 0.5MI W/O Garey Ave · Structure no. 53C0788

Built
1965
60 years old
Condition
Good
inspected November 2021
Type
Culvert
Concrete
Length
29 ft
1 main span
Daily traffic
10,200
2013 count
Owner
City
City or Municipal Highway Agency

About this bridge

Bonita Ave over Thompson Crk is a concrete culvert carrying Bonita Ave over Thompson Crk in Los Angeles County, California. It was built in 1965, so it is 60 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 10,200 vehicles a day, roughly 2% of them trucks, projected to reach 16,551 by 2041. The structure is 29 ft (8.8 m) long and 79 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesBonita Ave
CrossesThompson Crk
Location0.5MI W/O Garey Ave
RouteCity Street 0L709
Coordinates34.09779, -117.756
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 protection9 ExcellentNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior 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
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span26 ft (7.9 m)
Deck width79 ft (24.1 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,200 (2013)
Projected traffic16,551 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Bonita Ave over Thompson Crk built?

It was built in 1965, making it 60 years old in 2025.

What condition is Bonita Ave over Thompson 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 November 2021.

How much traffic does Bonita Ave over Thompson Crk carry?

About 10,200 vehicles per day (2013 count), of which roughly 2% are trucks.

How long is Bonita Ave over Thompson Crk?

The structure is 29 ft (8.8 m) long with a longest span of 26 ft (7.9 m) and a deck 79 ft wide.

Who owns Bonita Ave over Thompson Crk?

It is owned by the City or Municipal Highway Agency.