2018.06.04 CC Packet - Laserfiche WebLink

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1.0 INTRODUCTION Oneka Place Hugo, MN 45.183* N., 93.010*W. Section 17, T.31 N., R.21 W. Washington County, Minnesota As authorized by CPDC-Pratt-Oakwood LLC, Earth Science Associates, Inc. (ESA) has performed a Wetlands Functional Assessment on a 117.5 acre parcel consisting of agricultural land, woods, and wetlands. The site is located north of the terminus of Oneka Parkway North (See Site Locator Map). On the agricultural portion of the site, the western two-thirds, the developer plans to construct 177 single-family lots (142 single family and 35 villa homes) in four phases. Oneka Parkway North will be extended to join with 165th Street North. The eastern one-third, which contains high quality sedge meadow (Type 2) and shallow marsh (Type 3) wetland plant communities, will be dedicated to the City of Hugo for preservation and a passive trail system, and possible use for on -site wetland mitigation. MNRAM, an acronym for Minnesota Routine Assessment Method for Evaluating Wetland Functions, was originally devised after passage of the Minnesota Wetland Conservation Act (WCA) in 1991 in order to fill the need for a practical assessment tool that would help local authorities make sound wetland management decisions as they assumed responsibility for regulating wetland impacts. Wetland Management Classification within MNRAM applies the results of wetland functions and values in order to determine the various management classifications. For each management classification level, management strategies can then be applied to meet the general goals of wetland protection. Our focus is on those wetlands which will be unavoidably impacted by the planned development. A wetlands functional assessment has also been completed for the on -site replacement wetland in order to provide assurance that the functions and values of the replacement wetland will exceed the functions and values of those wetlands unavoidably impacted. 2.0 METHODS Following completion of a wetland delineation and report of the subject property, the results were entered into MNRAM version 3.4, the current edition of the program. The program asks 72 questions based on the physical setting and field observations relating to the subject wetland. For each wetland evaluated, the program creates Wetland Functional Assessment Summary for 12 wetland functions/value characteristics, a Wetland Community Summary, and a Management Classification Report for each wetland evaluated. The current grading plan (See #4 Current Preliminary Grading Plan 3-19-18) will unavoidably fill or drain portions of seven (7) wetland areas. That is, wetland B, BB, D-E, F, I, L, and K (See Wetland Delineation Site Diagram). A description of each wetland has been summarized in the wetland delineation report previously prepared for this site. Information from the delineation report is entered into the MNRAM program. Two summary reports are then generated by the program, 1) A Wetland Functional Assessment & Community Summary, and 2) a Management Classification Report.