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Rohlf, Steve <br />From: Dale Homuth [dale.homuth@dnr.state.mn.us] <br />Sent: Monday, April 25, 2005 3:30 PM <br />To: Rebecca Haug; srohlf@ci.elk-river.mn.us <br />Cc: Roger Stradal <br />Subject: River Park -Trott Brook <br />Steve and Rebecca; <br />I talked to Terry Jeffery of Schnell & Madsen about their wetland restoration project for <br />the River Park development. I told him I really liked the wetland restoration, but that <br />because they were proposing earthmoving within the designed floodway area it will be <br />necessary to run the Corps of Engineers HEC2 model for Trott Brook to determine whether <br />the project will impact flood levels in any way. I also noted that if flood levels were <br />impacted, they would have to go through a Map Revision process with FEMA to amend the Elk <br />River Flood Plain Maps. <br />Terry had sent some alleged floodplain data to Roger on April 21st, but he only used a <br />model (HydroCad) to estimate the 100 year level of the proposed ponds. This is not <br />adequate to determine whether the project will impact flood elevations as determined by <br />the FEMA flood study. <br />I pointed him in the direction he needs to go and he will explain to his client the <br />additional analysis needed. It was obvious to me that his office has no experience with <br />this type of matter. They know how to restore wetlands, not analyze floodway impacts. <br />Let me know if you have questions or concerns. <br />-Dale <br />Jale Homuth <br />Regional Hydrologist <br />Central Region Waters <br />1200 Warner Road <br />St. Paul, MN 55106 <br />phone: 651-772-7922 <br />fax: 651-772-7977 <br />email: dale.homuth@dnr.state.mn.us <br />1 <br />