 The Chase Brass Dam, between Waterbury and Thomaston, was removed in 2004.A fish bypass channel, the first of its kind in New England, now permits fish to migrate past the Tingue Dam and opens an additional of the river to anadromous fish migration.The installation of the fish bypass on the Tingue Dam in Seymour leaves only the Plume and Atwood Dam in Thomaston as the last barrier on the river to fish migration.