As the use of Oregon's transportation system increases, so does the need for good quality aggregates, the rock materials used in construction. Research Group is studying aggregate needs and supplies to help ODOT plan ahead and prevent future shortfalls.
Aggregate supplies are already limited in some areas of the state.
In addition, land use rules may impact mining operations at current sites and affect new site development. Aggregate sources near developing areas may need early protection from possible land use conflicts. The research team is using Global Positioning System coordinates to locate and catalog sites. The study will identify sites with potential land use conflicts, so ODOT can protect these sites from encroachment by other land uses. The study will also forecast aggregate needs to meet ODOT's future maintenance and construction requirements.