Complete question: Even when Horseshoe Dam was functioning, I have seen large storms overwhelm the culvert where Doan Brook crosses South Park Blvd. With Horseshoe Dam removed, this culvert will see more intense unmoderated peak flows. Does it need to be reevaluated or modified, and by whom? (Similar question for the Lee Road culvert.)
Answer: NEORSD is aware of the conveyance issues related to the South Park Blvd culvert. NEORSD will be developing alternatives to address this conveyance issue as part of the Horseshoe Lake dam removal engineering design study. The Doan Brook subwatershed model indicates that the Lee Road culvert, immediately downstream of Horseshoe Lake dam, does not overtop.
Posted August 6 in response to question to submitted for August 9 public meeting.