Methods to Save Construction Materials

After all the options to prevent waste, salvage and reuse materials have been incorporated into the project, the next step is to recycle as much of the remaining debris as possible. Recycling construction materials saves money by cutting disposal costs. It reduces waste going to the landfill, facilitates a cleaner and safer construction site, and improves community relations.

There are four types of facilities where CDL waste is processed:

Landfills – The least desirable method of waste disposal is at a landfill, where waste is buried. Transfer stations – A transfer station is a facility where waste is moved from collection vehicles to larger trucks for longer distance transport to a landfill, source-separated recycling facility or material recovery facility.

Contractors can self-haul their waste to the City of Seattle’s transfer stations in South Park and Wallingford. Source-separated wood, metal, cardboard and land-clearing are transferred to larger trucks for transport to recyclers.

Material recovery facilities (MRFs) — “Material recovery facility” (MRF) is the general term used to describe a waste-sorting facility where a variety of co-mingled CDL materials are sorted for recycling. At a MRF, a combination of mechanical and hand-separation procedures are used to sort co-mingled recyclables such as wood, cardboard and metals. We have three MRFs in the Puget Sound area. Recovery 1 in Tacoma is a locally owned MRF that only sorts co-mingled CDL.

Source-separated recycling facilities – These recycling facilities take a wide variety of materials that have been separated at the job site for recycling (i.e., cardboard, wood, metal, drywall). They are the most inexpensive disposal option. Depending on the type and quantity, some may even pay for the material. The majority of companies listed in the Construction Recycling Directory are source-separated recycling facilities.

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