Transfer stationEPA / OSM listing

Caltrans - Diamond Bar Maintenance Station

Caltrans - Diamond Bar Maintenance Station is a transfer station in Walnut, CA, in Los Angeles County. A private company runs it. Expect to pay at the scale house, and check whether they take small loads from residents. It is listed for household trash & bulky items. We list 278 other drop-off sites in Los Angeles County.

Address	21420 Golden Springs Rd, Walnut, CA 91789 Directions
County	Los Angeles County, CA
Hours	No hours on record. A quick call saves a wasted trip.
Fees	No published rate on file. Most dumps charge by weight or by load, often with a minimum.
Access	Privately owned, fees at the scale house
Accepts	Household trash & bulky items

Listed in the U.S. EPA Disaster Debris Recovery Tool (record from August 2025). Not yet verified by us. Price or hours wrong? Tell us.

Before you go

Gates at smaller sites often close early or on certain weekdays; call first.
Tarp the load; uncovered loads often cost more at the gate.
Tires, appliances with refrigerant and electronics often cost extra or go to a separate area.
Call to ask about minimum charges for a single car or pickup load.

Other transfer stations nearby

Road Division 417 Transfer station

19865 Walnut Drive, Walnut · 1.8 mi
Grand Central Recycling and Transfer Station Transfer station

999 Hatcher Avenue, South San Jose Hills · 4.9 mi · (626) 961-6291
Caltrans - Pomona Maintenance Station Transfer station

2650 South Garey Ave, Pomona · 5.3 mi
Cal Transfer Brea Maintenance Station Lvto Transfer station

13571 Central Ave, Brea · 5.8 mi
City of Brea Service Center Lvto Transfer station

545 North Berry Street, Brea · 6.5 mi

Hazardous waste drop-off nearby

Chino HHW Facility (Public Works Services Center) Hazardous waste drop-off Verified

5050 Schaefer Avenue, Chino · 8.2 mi · (909) 334-3266

Hours: Sat: 8 am to 1 pm

Household hazardous wasteElectronics
OC Household Hazardous Waste Collection Center - Anaheim Hazardous waste drop-off Verified

1071 N. Blue Gum Street, Anaheim · 11 mi · (714) 834-4000

Hours: Tue-Sat: 9 am to 3 pm

Household hazardous wasteElectronics

More in Los Angeles County

All 279 drop-off sites in Los Angeles County · Hazardous waste · Electronics · Tires · Yard waste · Construction debris · Scrap metal · California

Frequently asked questions

Where is Caltrans - Diamond Bar Maintenance Station?

21420 Golden Springs Rd, Walnut, CA 91789.

What can I drop off at Caltrans - Diamond Bar Maintenance Station?

Caltrans - Diamond Bar Maintenance Station is listed for household trash & bulky items. Confirm by phone before you load up.

Is Caltrans - Diamond Bar Maintenance Station open to the public?

As far as we know: privately owned, fees at the scale house.

What other transfer stations are near Caltrans - Diamond Bar Maintenance Station?

Road Division 417 in Walnut (1.8 mi), Grand Central Recycling and Transfer Station in South San Jose Hills (4.9 mi) and Caltrans - Pomona Maintenance Station in Pomona (5.3 mi).

Where can I take paint and chemicals near Walnut?

The closest household hazardous waste drop-off we list is Chino HHW Facility (Public Works Services Center), about 8.2 miles away.

Reviews

Be the first to review this site: was it easy to find, and how was the line?