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1-35E Corridor AUAR Update MCE-2025-00105 Page 2 of 6 o FDs37: Southern Dry-Mesic Oak(Maple) Woodland—vulnerable to extirpation (S3) o MHs38c: Red Oak-Sugar Maple- Basswood - (Bitternut Hickory) Forest—vulnerable to extirpation (S3) o FPn73a: Alder- (Maple- Loosestrife)Swamp—secure and abundant(S5) o WMn82a: Willow- Dogwood Shrub Swamp—secure and abundant(S5) The DNR recommends that the project be designed to avoid impacts to these ecologically significant areas. Actions to avoid or minimize disturbance include, but are not limited to,the following recommendations: o As much as possible, operate within already-disturbed areas. o Avoid MBS Sites and rare NPCs (ranked S1, S2, or S3). o Retain a buffer between proposed activities and the MBS Site. o Conduct surveys to better document resource impact and designate areas to avoid. o Minimize vehicular disturbance in the MBS Site (allow only vehicles/equipment necessary for construction activities). o Do not park equipment or stockpile supplies in the MBS Site. o Do not place spoil in the MBS Site or other sensitive areas. o If possible, conduct the work under frozen ground conditions. o Use effective erosion prevention and sediment control measures. o Inspect and clean equipment prior to operation and follow recommendations to prevent the spread of invasive species. o Revegetate disturbed soil with native species suitable to the local habitat as soon after construction as possible. o Use only weed-free mulches, topsoils, and seed mixes. Of particular concern are birdsfoot trefoil (Lotus corniculatus) and crown vetch (Coronilla varia), two invasive species that are sold commercially and are problematic in prairies and disturbed open areas. MBS Sites of Biodiversity Significance and DNR Native Plant Communities can be viewed using the Explore page in Minnesota Conservation Explorer(MCE) or their GIS shapefiles can be downloaded from the MN Geospatial Commons. Reference the MBS Site Biodiversity Significance and Native Plant Community websites for information on interpreting the data.To receive a list of MBS Sites of Biodiversity Significance and DNR Native Plant Communities in the vicinity of your project, create a Conservation Planning Report using the Explore page in MCE. • If the Wetland Conservation Act (WCA) is applicable to this project, please note that native plant communities with a Conservation Status Rank of S1 through S3 or wetlands within High or Outstanding MBS Sites of Biodiversity Significance may qualify as Rare Natural Communities (RNC) under WCA. Minnesota Rules, part 8420.0515, subpart 3 states that a wetland replacement plan for activities that modify a RNC must be denied if the local government unit determines the proposed activities will permanently adversely affect the RNC. If the proposed project includes a wetland replacement plan under WCA, please contact your DNR Regional Ecologist for further evaluation. Please visit WCA Program Guidance and Information for additional information, including the RNC Technical Guidance. Page 145 of 240