The purpose of the State Route (SR) 128 Corridor Valley Trail Feasibility Study (Study) is to evaluate the feasibility of a multi-use, non-motorized trail along SR 128 in Mendocino County (Study Corridor) from the Sonoma/Mendocino County line to the SR 128/SR 1 junction in Mendocino County and develop a plan that providesimplementable options leading to the eventual funding, planning, design, and construction of a shared-use trail in prioritized segments. The Study includes assessment of some parallel, off-highway alignments on State Parks land and Mendocino County roads; however, the Study emphasis is on potential facility improvements within California Department of Transportation (Caltrans) right-of-way (ROW). This project is funded through a Caltrans Community-Based Transportation Planning Grant and the Mendocino Council of Governments (MCOG).