This spring, OARS staff went to see if the “fish lift” at Lawrence’s 33-foot-high Essex hydroelectric dam really works. It does! Thousands of fish are lifted from below this large dam on the Merrimack River to continue upstream to spawn, including in the Concord River.
In 2021, 257,564 river herring and 31,458 American shad were counted using the fish lift, with 9,559 river herring and 1,915 shad in 2022 (a drought year). Data from 2023 will be available by the end of this year.
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