Best Management Practices for Low-Volume Forest Roads in the Piedmont Region

Abstract

Forest roads provide important access for forest management activities, yet those roads, skid trails, and stream crossings have repeatedly been reported as major sources of sediment. The passage of the Federal Water Pollution Control Act of 1972 focused considerable research on the development of forestry best management practices (BMPs) for reducing sediment input from forest roads. Recent litigation in the U.S. Supreme Court has reemphasized the importance of enhancing BMPs for forest roads. This paper synthesizes and interprets two decades of applied research on BMPs for low-volume forest roads, with emphasis on research conducted on forest operations in the Virginia Piedmont region. BMP interpretations include (a) current BMP status for forest roads, skid trails, and stream crossings; (b) advantages of preharvest planning; (c) forest road design; (d) forest road closure; (e) recommended BMPs for legacy roads; (f) guidelines for minimizing area of forest roads; (g) deck and skid trail rehabilitation; (h) closure of bladed and overland skid trails; (i) alternative harvest systems; (j) permanent and temporary closure of the stream crossing; (k) selection of stream crossing types; and (l) recommendations for streamside management zones. Major conclusions from this synthesis are that forest roads, skid trails, and stream crossings continue to be ranked as problem sources of sediment, but forestry BMPs can be used to reduce sediment inputs from such areas. Problems with road and skid trails can generally be attributed to poor planning and insufficient quantity or quality of BMPs.