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ITEM 2.2 attachmentReview No. 1 �Hal<anson Anderson ENGINEERING REVIEW Residential Subdivision for the City of Otsego by Hakanson Anderson Submitted to: Honorable Mayor and City Council cc: Lori Johnson, City Administrator Tami Loff, City Clerk Dan Licht, City Planner Andy MacArthur, City Attorney Bill Gleason, Essay Holdings, LLC Reviewed by: Ronald J. Wagner, P.E. Brent M. Larson, P.E. Date: September 15, 2015 Proposed Development: Kittredge Crossings 12th Addition Street Location A portion of the S %2 of the SW 1/4 of S26, T121, R24. of Property: North of North of 70th Street and West of Kittredge Parkway. Applicant: Bill Gleason Developer: Essay Holding LLC 16135 55th Avenue N Plymouth, MN 55446 Owners of Record: Shelard Capital Investment Inc Purpose: Kittredge Crossings 12th Addition (formerly Kittredge Crossings 9th Addition) is a proposed 25 unit detached townhome residential development on 12.2 acres in the City of Otsego, Wright County, Minnesota. The proposed development will be served with municipal water and sanitary sewer but will have municipal storm sewer and public streets typical of an urban setting. Jurisdictional Agencies: City of Otsego, Wright County, Minnesota Department of (but not limited to) Health, Minnesota Department of Natural Resources, Minnesota Pollution Control Agency, Wright Soil and Water Conservation District. Permits Required: NPDES, Minnesota Department of Natural Resources, BWSR, and (but not limited to) Minnesota Pollution Control Agency (independent sewer systems) TABLE OF CONTENTS INFORMATION AVAILABLE PRELIMINARY PLAT EXISTING CONDITIONS SUBDIVISION CONFIGURATION, LOT SIZE, DENSITY STREET/TRAFFIC/ACCESS CONSTRUCTION PLANS COVER SHEET FINAL GRADING PLAN AND REMOVALS FINAL CONSTRUCTION AND GRADING PLAN FINAL CONSTRUCTION AND GRADING PLAN DETAILS SURFACE WATER MANAGEMENT/STORM SEWER SYSTEM FINAL PLAT ENVIRONMENTAL OTHER CONSIDERATIONS SUMMARY AND/OR RECOMMENDATION PAGE 2 C:\Users\Tami\Documents\Planning Commission\2015\Packets\09-21-15 PC\ot2330.12 RVW1.doc INFORMATION AVAILABLE PUD Development Plan, Preliminary Plat & Final Plat, 8/25/15, by Westwood Professional Service, Inc. As -built Construction Plans for Odean Avenue Project, 8/15/00, by Hakanson Anderson Associates Previous Development Plans (Kittredge Crossings 9th Addition) Kittredge Crossings Phase II As -built Construction Plans, dated 1/11/08, by Westwood Professional Service, Inc. Kittredge Crossings Phase II As -built Grading Plans, dated 8/29/05, by Westwood Professional Service, Inc. Storm Sewer Design Calculations for Kittredge Crossings Phase II, sent 3/18/05, by Westwood Professional Services, Inc. Hydrology Report for Kittredge Crossings, 12/12/03 revision, by McCombs Frank Roos Associates, Inc Revised Hydrology Report for Kittredge Crossings Pond 7, 1/22/04 revision, by McCombs Frank Roos Associates, Inc Revised Hydrology Report for Kittredge Crossings Il, 8/10/04 revision, by McCombs Frank Roos Associates, Inc. Revised Hydrology Report for Kittredge Crossings II Pond 2 and 2A, 10/11/04 revision by Westwood Professional Services, Inc. Additional Information Minnesota Rules, Chapter 4410 — EAW Requirement City of Otsego Engineering Manual City of Otsego Zoning and Subdivision Ordinances National Wetland Inventory Map PAGE 3 C:\Users\Tami\Documents\Planning Commission\2015\Packets\09-21-15 PC\ot2330.12 RVW1.doc PRELIMINARY PLAT EXISTING CONDITIONS The following information shall be shown in the existing conditions or preliminary plat: a) Existing zoning classifications for land in and abutting the subdivision. b) Show widths of existing Kittredge Parkway. C) Provide size and elevations of existing sewers, watermain, culverts, and other underground facilities within 150'. d) Adjoining unsubdivided or subdivided land shall be identified by name and ownership within 150'. e) The normal and HWL elevations shall be labeled for the adjacent ponds and wetlands. SUBDIVISION CONFIGURATION, LOT SIZE, DENSITY The existing and proposed zoning is P.U.D. Previous Kittredge Crossings 91h Addition included 44 Attached Townhomes (excluding the constructed twinhome). The proposed 12th Addition is for 25 detached townhomes. The total site area is 12.18 acres thus reducing the gross density to 2.05 units/acre. STREET/TRAFFIC/ACCESS Kittredge Cove NE was constructed with Kittredge Crossings Phase II. The street is to remain a private a street. CONSTRUCTION PLANS COVER SHEET Provide approval signature line for Ronald J. Wagner, P.E. City Engineer. 2. Provide Benchmark location and elevation. 1929 Adj. datum shall be used. FINAL GRADING PLAN AND REMOVALS The 100 -yr HWL elevation and Emergency Overflow elevation equal 957.8 and 956.6 respectively for existing Pond 6 and the 100 yr. A minimum of 1.5' freeboard shall be provided to the lowest opening elevation for Lot 10, Block 1 (currently listed as 959.0) from the higher of these two elevations. 2. All curb stops and sanitary sewer services shall be removed or cut off a minimum of 4' below finish grade. Indicate which services are to be removed (Final Grading Plan & Removals Plan) or are to remain (Final Utility Service Plan). FINAL CONSTRUCTION AND GRADING PLAN 1. Label all existing utility information (rim and invert elevations, pipe sizes, types, grades). PAGE 4 C:\Users\Tami\Documents\Planning Commission\2015\Packets\09-21-15 PC\ot2330.12 RVW1.doc FINAL CONSTRUCTION AND GRADING PLAN 2. Label all existing utility information (rim and invert elevations, pipe sizes, types, grades). DETAILS Show typical street section. FINAL PLAT 2. The wetlands shown on the plat were previously delineated with Kittredge Crossings final plat (in 2003). New wetland delineation will not be required as the proposed grading is very minimal and will not impact the wetlands. However, since the delineated wetland edges shown are beyond the 3 years allowed therefore the plat should note that this is not the delineated wetland edge. All wet lands and water boundaries and all public ways shall be shown and labeled as defined in Minnesota Statutes, Section 505.01, Subd. 3. SURFACE WATER MANAGEMENT/STORM SEWER SYSTEM All stormwater is accounted for with the original Kittredge Crossings stormwater management plans. No additional runoff of impervious area is proposed to be added. ENVIRONMENTAL 1. Statement certifying the environmental condition of the site including the presence of any hazardous substance as defined in Minnesota Statutes 11513.02, Subd 8. MISCELLANEOUS Provide geotechnical data. 2. All new developments will require postmaster approved locking cluster mailboxes to be installed. The location of these mailboxes shall be shown in the final construction plans for review by the City and Postmaster. SUMMARY AND/OR RECOMMENDATION We recommend approval contingent upon the above comment being addressed. PAGE 5 C:\Users\Tami\Documents\Planning Commission\2015\Packets\09-21-15 PC\ot2330.12 RVW1.doc