Weyerhaeuser Regional Landfill

Weyerhaeuser Regional Landfill is the big County landfill just south of Castle Rock that handles household and commercial loads. Locals use it for bulky trash and for things that can’t be left at the transfer stations. It’s a working disposal site, not a transfer yard-plan for tipping and scale traffic.

Drive up to a weigh scale when entering; tipping fees are charged based on weight and commercial trucks are accepted. There’s an entrance booth and a scale house to stop at, then pull through to the active tipping area and follow staff or signage for where to dump. The site is large with mounded dirt and compacted cells visible from the drop-off, and recycling/yard-waste separation rules in Washington mean some materials may need to be set aside. Weekends and spring cleanup times tend to be the busiest, so expect a line at the scale or entrance.