Cowlitz County Headquarters Landfill
Castle Rock, Washington
Landfill details
3434 South Silver Lake Road
Castle Rock, WA 98611
Tipping fees
$62.50 per ton
Cowlitz County MSW tip fee reported to WA Ecology for 2024: $62.50/ton in county, $115.00/ton out of county. Charged at the Waste Control transfer station, 1150 3rd Ave, Longview, where all commercial and self haul waste is received before going to Headquarters.
Published rates · confirm current rates with the facility
For roll-off and dumpster haulers
| Operating status | Open, confirmed by Cowlitz County, Headquarters Landfill (accessed 2026-09-28) |
|---|---|
| Facility type | WA Municipal Solid Waste Landfill (351) (state classification) |
| Household trash (MSW) | Accepted |
| Construction and demolition debris | Accepted |
| Tires | Accepted |
| Hazardous waste | Household hazardous waste: Waste Control year round collection facility, Tuesdays and Saturdays 9:30 to 11:30 AM, plus local collection events. |
| Charges by | Weight (scale ticket) |
| Open to the public | No |
Before you send a truck: Headquarters Landfill (3434 S Silver Lake Rd, Castle Rock) is the only operating MSW landfill in Cowlitz County, owned by the county and permitted under WAC 173-351. Commercial and residential self haul loads do not go to the landfill: they go to the Waste Control Transfer Station, 1150 3rd Ave, Longview (360-425-4302), which accepts waste from any county and consolidates it for Headquarters.
At $62.50 per ton, a 2-ton roll-off load costs about $125.00 and a 4-ton load about $250.00 in disposal, before minimums and surcharges.
Facility profile (US EPA): Opened in 1993; public ownership, owned by Cowlitz County, WA; accepts about 787,914 tons a year (2022); about 11,186,328 tons of waste in place (2022); design capacity of 53,367,110 tons; expected to close in 2094.
Not verified yet: roll-off access, account rules. Call the facility before your first load.
Sources: US EPA Landfill Methane Outreach Program (LMOP) Landfill and LFG Energy Project Database (2024-09) · Cowlitz County, Headquarters Landfill (accessed 2026-09-28) · Washington Department of Ecology, List of solid waste facilities (Cowlitz County Headquarters Landfill: Municipal Solid Waste Landfill (351), Operating, Permitted, Cowlitz County) (accessed 2026-09-28) · Cowlitz County, Landfills (accessed 2026-09-28) · Cowlitz County Environmental Health, Solid Waste Facilities (accessed 2026-09-28) · Waste Control (Cowlitz County transfer station operator), Waste Disposal (accessed 2026-09-28) · Cowlitz County, Household Hazardous Waste (accessed 2026-09-28) · Washington Department of Ecology, county MSW tipping fees 2024 (2024) · US EPA Landfill Methane Outreach Program (LMOP) (2024-09)
Nearest landfills
- Land Recovery Landfill · Graham, 55.1 mi away
- Cedar Hills Regional LF · Maple Valley, 90.6 mi away
- Terrace Heights LF · Yakima, 116.1 mi away
- Ryegrass LF · Ellensburg, 117.8 mi away
- Cheyne Road LF · Zillah, 121.2 mi away
Related
Dumpster rental companies near Cowlitz County Headquarters Landfill
Local roll-off operators from the Dumpster Controls Company Directory, with sizes, published prices and phone numbers.
- NC Hauling Solutions, LLC · Vancouver, WA · 43 mi away
All dumpster companies in Washington · Dumpster Rental Company Directory
For dumpster rental & junk removal companies
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