ITEM 2.2_attachmentReview No. 2
�Hakanson
1llAnderson
Submitted to:
ENGINEERING REVIEW
Commercial Lot
for the City of Otsego
by
Hakanson Anderson
Honorable Mayor and City Council
cc: Lori Johnson, Administrator
Tami Loff, City Clerk
Dan Licht, City Planner
Andy MacArthur, City Attorney
Casey Darkenwald, Darkenwald Corporation
Todd W. McLouth, P.E., Loucks Associates
Reviewed by:
Ronald J. Wagner, P.E.
Brent M. Larson, P.E.
Date:
May 15, 2015
Proposed
Development:
Riverbend South
Street Location
A portion of the SE 1/4 of the SW 1/4 of Section 26, T121, R23
of Property:
East of State Highway 101 and North of CSAH 37/70' Street
Applicant:
Casey Darkenwald
Darkenwald Corporation
7535 River Road NE
Otsego, MN 55330
Developer:
Darkenwald Corporation
Owners of Record: Darkenwald Corporation
Purpose: Riverbend South is a proposed 17.9+ retail, commercial, and office
development in the City of Otsego, Wright County, Minnesota.
The proposed development will be served with municipal water,
sanitary sewer, storm sewer, and public streets typical of an urban
commercial setting.
Jurisdictional Agencies: City of Otsego, Wright County, MnDOT, Minnesota Department
(but not limited to) of Health, Minnesota Department of Natural Resources, Minnesota
Pollution Control Agency, Wright Soil and Water Conservation
District.
Permits Required: Wright County Right -of -Way Permit, NPDES, Minnesota
(but not limited to) Department of Health (water), and Minnesota Pollution Control
Agency (sanitary sewer)
TABLE OF CONTENTS
INFORMATION AVAILIBLE
PRELIMINARY/FINAL PLAT
CONSTRUCTION AND GRADING PLANS
COVER SHEET (CO -1)
EXISTING CONDITIONS (C1.1)
SITE PLAN (C2.1)
GRADING AND DRAINAGE PLAN (C3.1)
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) (C3.2)
STREET AND STORM SEWER PLAN AND PROFILE (C4.1 - C4.2)
SANITARY SEWER AND WATERMAIN PLANS (C5.1)
GRADING DETAILS AND SWPPP NOTES (C8.1)
CIVIL DETAIL SHEETS (C9.1- C9.3)
STORMWATER MANAGEMENT
OTHER CONSIDERATIONS
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INFORMATION AVAILABLE
Preliminary Plat for Riverbend South, dated 5/11/15, by Loucks Associates, Inc.
Final Plat for Riverbend South, received 5/11/15, by Loucks Associates, Inc.
Construction and Grading Plans for Riverbend South, 5/11/15 by Loucks Associates, Inc.
Original Riverbend South Information
Alta/ACSM Land Title Survey for Darkenwald Real Estate of Schwab Site, 8/01/05 revision, by
RLK, Inc.
Riverbend South Preliminary Plat, 8/15/06 revision, by RLK, Inc.
Wetland Determination and Delineation for Outlots B, C, & D, dated 6/23/06, by Pinnacle
Engineering, Inc.
Environmental Site Assessment for Rottlund Homes, dated 2/04/04, by Braun Intertec
Preliminary Geotechnical Report for Riverbend South, dated 7/11/05, by Braun Intertec
Septic Tank Demolition and Well Sealing Records for Darkenwald's Riverbend Company II
LLP, received 11/7/07
Storm Water Management Plans for Wildflower Meadows, dated 10/30/06, by Pioneer
Engineering
Storm Sewer Design for Wildflower Meadows, 4/10/07 revision, by Pioneer Engineering
Additional Information
Minnesota Rules, Chapter 4410 — EAW Requirement
Trunk Stormwater Facilities Study for Portions of the Otsego Creek Watershed
City of Otsego Engineering Manual
City of Otsego Zoning and Subdivision Ordinances
National Wetland Inventory Map
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PRELIMINARY PLAT
1) 72nd Street is to be renamed as Quantrelle Avenue changing to 72nd Street at the east plat
line.
2) Label the existing zoning classification for the land within the development as well.
3) Show and label the existing gas easement line north of 72nd/Quantrelle Avenue.
4) The drainage and utility easement within Outlot A is mislabeled Outlot B.
5) There have been discussions with the developer of Riverbend South regarding expanding
Outlot B to cover the entire delineated wetland and buffer area and possibly the existing
watermain and sanitary sewer. This would help "clean up" the various required drainage,
utility, and conservation easements required by covering the entire Outlot B with the
necessary easements.
FINAL PLAT
1) 72nd Street is to be renamed as Quantrelle Avenue changing to 72nd Street at the east plat
line.
2) Outlot A, covering the storm water basin/infiltration area, and all easements within Outlot A
and B shall be dedicated to the City of Otsego.
3) Show the delineated wetland.
CONSTRUCTION AND GRADING PLANS
Cover Sheet (Sheet C0.1)
1) No Comments.
Site Plan (Sheet C2.1)
1) See final plat comments.
2) The minimum spacing between intersections is 200'. The southern entrance to Outlot C shall
be eliminated or shall be a right in/right-out entrance only.
3) At this time, from approximate station 2+50 to 10+50 shall only be striped with 4" double
yellow centerline and 4" solid white fog lines. The need for turn lanes or center islands will
be reviewed in the future when Outlot C develops.
4) 72nd Street/Quantrelle Avenue shall be 46' wide back of curb to back of curb the agree with
Otsego Standard Plate 115 for a Local Commercial Urban street before it tapers down to a
28' wide street to connect to the existing street to the east. The typical section detail on sheet
C9.3 shows the width to be 41.34'.
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5) Typical lane detail/sections shall be provided. (see Std Plate 115 and/or 103) These details
shall dimension the median, lane and shoulder widths near the intersection of CSAH 37 and
lane and shoulder widths.
6) The property line showing the "wedge" that separates the Otsego owned property to the north
and the Wildflower Meadows 4t' Addition should be show on all sheets. There is proposed
grading and storm sewer to be placed on this property and this will aid in reviewing the
plans.
Grading Plan (Sheet C3.1)
1) The EOF at approximate station 11+50 is illegible. EOF labels and elevations shall be
legible and clearly visible.
2) The grading and the storm sewer outlet north of the property line near the NE corner of the
site requires permission from the adjacent property owner. The developer has already had
discussions with the adjacent land owner regarding this issue.
3) The striping should be removed from the grading plan to "unclutter" it.
SWPP Plan (Sheet C3.2)
1) No comments.
Street and Storm Sewer Plan and Profile (C4.1)
1) The centerline horizontal curve information shall be provided.
2) The vertical curve information at station 0+50 shall be provided.
3) The insulation is misplaced in the profile near STMH 107. Also, the insulation at the
crossings near CBMH 105 and CBMH 104 should be shown in the profile.
4) The storm sewer runoff from the Kwik Trip site has some unique requirements per the
NPDES permit since it is runoff from a fueling station and therefor some of the water is not
allowed to infiltrate into the soil. The runoff from the areas where fueling is to occur must
bypass all infiltration practices. We have provided both developers engineers' of Riverbend
South and Kwik Trip with a sketch (see attached) of a potential option to re-route the storm
sewer in the area near Outlot A to meet these requirements. The inverts and pipe sizes are
subject to change and are just starting points. The storm sewer routing will continue to be
coordinated between both sites.
Utility Plan (Sheet C5.1)
1) We believe that a water valve should be placed on the stub to Outlot C to avoid needing to
shut off water to the Kwik trip site to make the connection in the future.
PAGE 5
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Details (Sheet C8.1 & 9.1 — 9.3)
1) See Site Plan comment #4.
STORMWATER MANAGEMENT
1) See Street and Storm Plan comment #4.
OTHER COMMENTS
1) No Comments.
SUMMARY AND/OR RECOMMENDATION
We recommend approval contingent upon the above comments being addressed.
PAGE 6
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