ITEM 2.3_attachmentReview No. 2
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I—JoAnd-e-rson
ENGINEERING REVIEW
Commercial Lot
for the City of Otsego
by
Hakanson Anderson
Submitted to: Honorable Mayor and City Council
cc: Lori Johnson, Administrator
Tami Loff, City Clerk
Dan Licht, City Planner
Andy MacArthur, City Attorney
Kwik Trip, Inc.
Joseph T. Radach, P.E., Carlson McCain
Reviewed by:
Ronald J. Wagner, P.E.
Brent M. Larson, P.E.
Date:
May 15, 2015
Proposed
Development:
Lot 1, Block 1 of Riverbend South — Kwik Trip
Street Location
A portion of the SE 1/4 of the SW 1/4 of Section 26, T12IN,
of Property:
R23W, East of Highway 101 & North of CSAH 37
Applicant:
Kwik Trip, Inc.
P.O. Box 2107
1626 Oak Street
La Crosse, WI 54602-2107
Developer:
Kwik Trip, Inc.
Owners of Record: Kwik Trip, Inc.
Purpose: Riverbend South Addition — Kwik Trip is a proposed 7,396 gross
square foot convenient store located on 8.26 acres of Block 1 of
Otsego Riverbend South and Lot 1, Block 1 Otsego 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, 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 Health (water), Wright County
(but not limited to) Highway Permit, and Minnesota Pollution Control Agency
(sanitary sewer)
TABLE OF CONTENTS
INFORMATION AVAILIBLE
CIVIL PLANS
EXISTING CONDITIONS & REMOVALS PLAN (SP1)
SITE LAYOUT PLAN (SP2 - SP2.1)
GRADING & EROSION CONTROL PLAN (SP3)
UTILITY PLAN (SP4 - SP4.1)
STORM WATER POLLUTION PREVENTION PLAN (SWPPP) (SP5)
DETAILS (SP6 - SP8)
LANDSCAPE PLAN (L1 - L2)
PHOTOMETRIC SITE PLAN (E1)
HYDROLOGY/S TORMWATER
OTHER COMMENTS
SUMMARY AND/OR RECOMMENDATION
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INFORMATION AVAILABLE
Final Plans for Kwik Trip Convenience Store #162, 5/12/15 revision, by Carlson McCain Inc.
Preliminary Plans for Kwik Trip Convenience Store # 162, 4 /20/15, by Carlson McCain Inc.
Orijzinal Otsego River Bend South Information
Final Plat for Otsego Riverbend South, Dated 4/17/15 by Loucks Associates
Riverbend South Sanitary Sewer, Watermain, Storm Sewer, & Street Improvement Plans, Dated
4/17/15 by Loucks Associates
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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CIVIL PLANS
Existing Conditions & Removals Plan (Sheet SP1)
1) Provide a signature line for Ronald J. Wagner, City Engineer on the cover sheet. Plans will
be signed upon approval.
2) 72nd Street is to be renamed as Quantrelle Avenue changing to 72nd Street at the east plat
line. (All sheets)
Site Plan (Sheet SP2 - SP2.1)
1) 72nd Street is to be renamed as Quantrelle Avenue changing to 72nd Street at the east plat
line. (All sheets)
2) Call out the concrete valley gutter (see detail 702) at the eastern entrance.
3) 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.
4) Per Wright County comments dated 515115
a. The entrance off of CSAH 37 shall be a right in only entrance.
b. A right turn lane shall be constructed along CSAH 37 for this entrance. (Plans shall
be submitted for review of the proposed turn lane.)
c. At the time of construction a Right -of -Way permit is required when the above work is
to be done.
Grading & Erosion Control Plan (Sheet SP3)
1) City of Otsego requires articulated block (or "Flexmat" as an approved equal inmost cases)
to be used instead of riprap on all public improvements. The overflow from the infiltration
area shall be changed to articulated block.
Utility Plan (Sheet SP4 - SP4.1)
1) Label the size and type of material of all utility stubs being used along 72nd Street/Quantrelle
Avenue.
2) The storm sewer runoff from the Kwik Trip site has some unique requirements per the
NPDES permit. Since the site is a proposed fueling station, 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
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change and are just starting points. The storm sewer routing will continue to be coordinated
between both sites.
3) We recommend placing a sanitary manhole in lieu of the cleanout at the end of the sanitary
service line near the carwash.
SWPP Plan (Sheet SP5)
1) Provide silt fence on the east side of the southern entrance off of CSAH 37.
Details (Sheet SP6 — SP8)
1) No comments
Landscape Plan (Sheet L1 — L2)
1) No comments
Photometric Site Plan (Sheet EI)
1) No comments
STORMWATER MANAGEMENT
1) Provide hydrology model calculations of the infiltration basin including calculations
regarding the sizing and draw down times in accordance with the NPDES permit.
2) Provide storm sewer sizing calculations using the Rational Method for the internal storm
sewer. A minimum time of concentration = 10 minutes and a 10 -yr, 10 -minute intensity of
5.8 in/hr should be used.
OTHER COMMENTS
1) No comments.
SUMMARY AND/OR RECOMMENDATION
We recommend approval contingent upon the above comments being addressed.
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