Constituent proportions of materials culled and sorted in the construction and demolition waste stream shows a high degree of correlation with local priorities and economic trends at a given time. For example, communities with a preponderance of 19th century buildings and undergoing gentrification tend to have a larger proportion of masonry waste as contrasted with a suburban neighborhood undergoing renovations and additions to lightly-built wood frame structures. Diversion performance over a two year period (2009-10) processing 20,000 tons of construction and demolition waste generated in an urban area in the US (2010) demonstrates the following proportions:
As of January 2015, there are 85 permitted C&D debris processing facilities and 291 registered C&D debris processing facilities. Not included in these numbers are facilities that receive and process only land clearing debris and/or unadulterated wood, wood chips, or bark from logging operations, pulp and paper production, and wood products manufacturing. These facilities are exempt from regulation under Part 360. Registered C&D debris processing facilities receive and process uncontaminated and unadulterated wood, recognizable uncontaminated concrete and other masonry waste (including steel or fiberglass reinforcing embedded in concrete), asphalt pavement, brick, soil or rock that has not been in contact with a spill from petroleum product, hazardous waste, or industrial waste, and that is not commingled with other solid waste. A model waste control plan (PDF, 59KB) has been developed for registered C&D debris processing facilities to help ensure that only authorized wastes are processed at these facilities. All other C&D debris processing facilities must be permitted. Both permitted and registered C&D debris processing facilities are required to submit annual operating reports.
Disposal of public fill at public filling areas and mixed construction waste at sorting facilities or landfills has been the major approach for construction waste management. For sustainable development, we can no longer rely solely on reclamation to accept most of the inert construction waste. As such, the government is examining ways to reduce and also to promote the reuse and recycling of construction waste. Nevertheless, there will still be a substantial amount of materials that require disposal, either at public fill reception facilities or at landfills.