Alpha Ridge Landfill

Hours of Operation:
Mon-Sat, 8am to 4pm (residential)
Mon-Sat, 8am to 3:30pm (commercial)            
Sundays - Closed 
2350 Marriottsville Road,
Marriottsville, MD 21104

Dates to Remember

Labor Day
Monday, September 3
 Alpha Ridge Landfill will be CLOSED
Columbus Day
Monday, October 8
 Alpha Ridge Landfill will be OPEN 8am to 4pm
Thanksgiving Day
Thursday, November 22
 Alpha Ridge Landfill will be CLOSED

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Address Verification

Contractors and Howard County residents are permitted to use the Alpha Ridge Landfill and Residents’ Convenience Center. Traditionally staff have used Maryland Driver’s Licenses to confirm Howard County residency. Because the new Maryland Driver’s Licenses no longer indicate the county of residence, staff may enter your address into an address checker to confirm residency. The address checker is a publicly available app developed for DPW and the Health Department. It uses an address listing, maintained by Department of Fire and Rescue and the 911 Center. The application does not track number of visits, material type, date or weight.

General Information

Howard County residents can dispose of trash and recyclable items at the Alpha Ridge Landfill. Residents using the landfill are required to show their driver's licenses as proof of residence in Howard County each time they enter.

Hours of Operation:

Monday - Saturday, 8 am to 4:00 pm (residential)
Monday - Saturday, 8 am to 3:30 pm (commercial)
Sundays - Closed

The landfill will be closed on the following holidays:

New Year's Day
Memorial Day
Independence Day
Labor Day
Thanksgiving Day
Christmas Day


From Route 29 north, take Interstate 70 west to exit 83. Keep right onto Marriottsville Road, the entrance will be on the left. The address is 2350 Marriottsville Road, Marriottsville, MD 21104.


Residents' Convenience Center

Residents using the Convenience Center are required to show their driver's license as proof of residency in Howard County. The convenience center accepts many items for reuse, recycling and disposal. For special exceptions, click here.

NOTE: Residents disposing of construction, demolition and home improvement material (C&D waste) will be directed to weigh in at the scalehouse and will be charged $80/ton ($4 per 100 pounds) of waste. This includes deliveries mixed with household waste.

Wood Waste Area and Products For Sale

Material brought to the Alpha Ridge Landfill Wood Waste Area is processed on-site and made into compost ($23 per cubic yard), mulch ($21 per cubic yard) and a topsoil blend ($25 per cubic yard). Residents may purchase these products in bulk from the Alpha Ridge Landfill. Here are more details about dropping off yard trim and wood waste, as well as information about HoCoGro products.

Here is a list of contractors who will deliver HoCoGro compost, mulch or topsoil to residents’ homes. Prices vary by vendor. Please remember that the cost listed does not include the cost of the product.

Pilot Composting Facility

Details about the Alpha Ridge Landfill Pilot Composting Facility.

Landfill Gas to Energy Project

Details about the Alpha Ridge Landfill Gas to Energy project.

Prohibited Items

Commercial/Small Business Permit for Trash

Please follow the directions on the application for where to make payment. NOTE: Starting July 2017, businesses no longer need a free permit to drop-off recycling. Small businesses may only bring material that was generated within Howard County.

Goodwill truck

A Goodwill truck will be at the landfill on Mondays and the 2nd and 4th Saturday of each month from 9am to 3:30pm. Donate used clothes, toys, housewares and small appliances to keep those good items out of the trash. Note: Furniture will be accepted on limited basis and at the discretion of the Goodwill attendant. It's best to take furniture to one of their stores for donation. Visit for more information.