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Penobscot River Cross Section Data pre- and post-Dam Removal

July 29, 2021

The Great Works (20 feet high) and Veazie (30 feet high) dams on the lower section of the Penobscot River in Maine were removed during the summers of 2012 and 2013, respectively. Channel cross sections upstream and downstream of these dams from just below the Milford Dam to the head‐of‐tide at Eddington Bend just below the former Veazie Dam were surveyed before and after the dams were removed in order to assess changes in the channel as a result of the dam removals. Cross sections were referenced to stable monuments set on the left and right banks of each cross section to ensure consistent cross section locations. Data for each cross section include total station theodolite survey data integrated with Acoustic Doppler Current Profiler (ADCP) depth data referenced from the water surface at the time of the survey to make up integrated cross sections.