In this photo: remnants of the oldest man-made canal in the USA and Holyoke hydro electric power plant and fish-way in the background, with significant dam overflow. © 2018 ; Art Style; photojournalism; Tags: historic, dam, water,overflow,hydroelectric,fishway; Media: digital; Materials: 42MP sony a99II. Original ID: q_l42plwV6pkKh7p