04. Updated Forest Mitigation Agreement with the Metro Flood Diversion Authority

12 Site 38 – OIN 1893, 9420, 9422, 9462, 9670, 9671: This larger site is an abandoned tree nursery located immediately adjacent to the Red River of the North that measures approximately 38.3 acres in size, and there are some erosional issues in multiple locations along the river. Much of the site along the river falls within the 10-year flood inundation boundary. The site is comprised of three primary soil types, with the majority being mapped as Fargo silty clay (I229A), found on 0-1% slopes, with Fargo being its major component (80%). Fargo is described as a clayey, poorly drained, hydric soil. The second most abundant soil type is Cashel silty clay (I293B), which is found in 0-6% slopes and occasionally flooded. The major soil component (80%) is Cashel, a loamy overflow that is non-hydric, but somewhat poorly drained. Third most abundant, found primarily along the riverbank is mapped as Wahpeton silty clay (I451D), which is described as being found on 1-15% slopes and occasionally flooded. The major components are listed as Wahpeton (35%), which is a moderately well drained, non-hydric clayey soil, and Cashel (25%), a somewhat poorly drained, non-hydric loamy overflow soil. This is a unique site that has some trees already in place, but with additional plantings, the site would increase riparian buffer benefits to the Red River system and would allow for the erosional issues onsite to be addressed. The sloped areas adjacent to the river would be supplemented with the Bank Stabilization strategy (orange polygon, approx. 0.8 acres) and transition into Floodplain Forest strategy (green polygon, approx. 37.5 acres) on the higher elevations, farther from the river. There is a plant species list of remaining trees on the nursery property (Appendix C), of which several species of Lilac (highlighted yellow in Appendix C) have been identified as potentially harmful due to their invasive nature and would need to be removed or girdled in place at the time of planting. Existing fencing and concrete driveway/entrance would also require removal. Site 39 – OIN 1200 This site is located immediately adjacent to the Sheyenne River and measures approximately 0.34 acres. There are significant erosional issues on the western end along the river. The entire site lies outside of the 10-year flood inundation boundary, and the majority of the site is comprised of Fairdale silt loam (I480A), which is described as being a clayey substratum found on 0-3% slopes and rarely flooded. The major components are listed as Fairdale (78%), which is a moderately well drained, non-hydric loamy overflow, and LaDelle (10%), a moderately well drained, non-hydric loamy soil. Although this is a smaller property, it would provide additional riparian buffer benefits to the Sheyenne River and would allow for the erosional issues onsite to be addressed. The sloped areas adjacent to the river would be planted using the Bank Stabilization strategy (orange polygon, approx. 0.2 acres) and transition into Floodplain Forest strategy (green polygon, approx. 0.13 acres) farther from the river. Site 41 – OIN 1885, 9416 This site is a former homesite/flood buyout property, located adjacent to the Red River of the North and measures approximately 8 acres. Much of the eastern side of the site falls within the 10-year flood inundation boundary, and the majority of the site is comprised of Wahpeton silty clay (I248A), which is described as being found on 0-2% slopes and occasionally flooded. The major component (70%) is listed as Wahpeton, which is a moderately well drained, non-hydric,