04. Updated Forest Mitigation Agreement with the Metro Flood Diversion Authority
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04. Updated Forest Mitigation Agreement with the Metro Flood Diversion Authority
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<br />7 <br />not allowed within 20 feet from the toe of the levee to allow for the minimum 15-foot Vegetation- <br />Free Zone. Other areas on the site are intended to provide wetland mitigation and were planted <br />with wetland seed mixes. <br /> <br />Site 1 – OIN 1222: <br />This site is located immediately adjacent to the Red River of the North and measures <br />approximately 12.9 acres. It is currently in agricultural production and a cursory review of aerial <br />imagery shows agriculture use for at least the last 30 years. The majority of this site, <br />approximately 80% is located within the 10-year flood inundation boundary. It is comprised <br />entirely of Cashel silty clay (I293B), which is found in 0-6% slopes and occasionally flooded. <br />The major soil component (80%) is Cashel, a loamy overflow that is non-hydric, but somewhat <br />poorly drained. This is a high priority site for floodplain forest re-establishment, and after <br />reforestation, would expand existing riparian buffer habitat in the Red River system. This site <br />would be reforested using the Floodplain Forest strategy (green polygon) across the entire site. <br />June 2022 Site Visit notes described the site as currently in agricultural production with <br />soybeans the present crop. Ash, Elm, Box Elder, Willow, and a few scattered Bur Oaks were <br />observed in the surrounding forested area. Some reed canary grass was observed around the <br />south and southwestern perimeter that would need to be addressed should this site be utilized. <br /> <br />Site 5 - OIN 922: <br />This site is located adjacent to the Maple River and measures approximately 2.8 acres. A <br />cursory review of aerial imagery shows that this site has been in agricultural production for at <br />least several decades. The portion of the site identified for bank stabilization falls within the 10- <br />year flood inundation boundary, and the majority of the site is comprised of Wahpeton silty clay <br />(I248A), which is described as being found on 0-2% slopes and occasionally flooded. The major <br />component (70%) is listed as Wahpeton, which is a moderately well drained, non-hydric clayey <br />soil. The site does show a swale with Fargo silty clay (I235A), that is typically depressional in 0- <br />1% slopes, with Fargo being its major component (75%). Fargo is described as a clayey, poorly <br />drained, hydric soil. Although this is a smaller property, it would provide additional riparian buffer <br />benefits to the Maple River. This site would be planted similar to Site 6 in which the sloped <br />areas adjacent to the river would be planted using the Bank Stabilization strategy (orange <br />polygon, approx. 0.5 acres) and transition into Floodplain Forest strategy (green polygon, <br />approx. 2.2 acres) as the elevation rises, farther from the river. <br /> <br />Site 6 – OIN 923Y: <br />This site is located adjacent to the Maple River and measures approximately 21.3 acres. A <br />cursory review of aerial imagery shows that this site has been in agricultural production for at <br />least several decades. The majority of the site is comprised of Wahpeton silty clay (I248A), <br />which is described as being found on 0-2% slopes and occasionally flooded. The major <br />component (70%) is listed as Wahpeton, which is a moderately well drained, non-hydric clayey <br />soil. The northern portion of the site shows Fargo silty clay (I229A), found on 0-1% slopes, with <br />Fargo being its major component (80%). Fargo is described as a clayey, poorly drained, hydric <br />soil. This is a larger site and would provide much needed riparian buffer benefits to the Maple <br />River. The entire site would be planted with the Floodplain Forest strategy (green polygon).
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