Energy & Environmental Protection - CT
Seymour No. 4 Dam Improvements - Replace the existing spillway with a concrete drop inlet strucure with 48- inchdischarge pipe and energy dissipator at the downstream end. A new 16- inch outlet pipe controlled by astainless steel slide gate will be installed in the drop inlet spillway structure. Installation of a new valve andextension stem on the existing low level outlet upstream of the dam at the bottom of the reservoir. Treeswill be cleared from the embankments and the downstream slope will be filled in
Dam improvements Replace existing spillway with a concrete drop inlet structure with 48- inch discharge pipe and energy dissipator. Install a new 16- inch outlet pipe controlled by a stainless steel slide gate in the drop inlet spillway structure. Install a new valve and extension stem on the existing low level outlet. Clear trees from embankments and fill in the downstream slope. Repair eroded areas on the crest and raise it one foot. Place riprap on the upstream slope. Construct a 100- foot long auxiliary spillway with a concrete core wall. Clear trees and stumps from the left dike and topsoil and seed with grass.
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