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Home My WebLink About2016-03-17 BCWD Preliminary Comments memo Project Name Pizza Ranch—Oak Park Heights Date 3/17/2016 To/Contact info Karen Kill, BCWD Administrator Cc/Contact info Camilla Correll, PE, EOR From/Contact info j Ryan Fleming, PE, EOR Regarding BCWD Preliminary Project Comments Karen, As requested,below are our preliminary comments on the submittal materials by the I+S Group. Please let us know if you have any questions or comments. Submitted Materials: • 18332 2016-02-09 Pizza Ranch OPH Civil Set.pdf; Signed 01/12/2016 by Lynn A.Bruns • 18332 Stormwater Calculations.pdf; 02/09/2016 Memorandum by Kristopher Roppe Background: - Site is located in the Kern Center Commercial Area and is therefore exempt from Rule 2.0. - Post construction impervious area is 1.23 acres and total project size is 1.8 acres or 68% imperviousness (less than the 80%threshold allowed under the Kern Center Agreement). - All stormwater being routed to drainage swales located along the eastern,western and southern edges of the property via storm outlet curb cuts. Permit Requirements: - The proposed project triggers the application of Rule 3.0 Erosion Control because the proposed development activity will result in grading,construction of stormwater infrastructure,installation of utilities and an access road which in total will disturb more than 3 acres of a 5.1-acre site. - The proposed project triggers Rule 7.0 Floodplain and Drainage Alterations because commercial building is proposed adjacent to stormwater management facilities (vegetated swales and sedimentation area)that must be evaluated to ensure drainage alterations comply with the requirements defined in Rule 7.0. The proposed project does not include floodplain filling. Stormwater Management Plan: - Existing Drainage and Utility Easement(along western edge of property)to be relocated to accommodate proposed drainage swales. This drainage easement discharges to a swale on the Indoor Shooting Range property which runs along the eastern edge of an infiltration basin before discharging to the Kern Center Pond. The construction plans show the contours tying into the 937 and 936 foot contours identified on the Indoor Shooting Range plans. - Drainage from the northern portion of the site drains east through a curb cut to a drainage swale along County Road 5. - FFE building of 940 feet meets the 2'freeboard requirement measured from the pond HWL of 937.9 feet. - Include offsite drainage to the swale as applicable to evaluate sizing of drainage swales, ability to convey runoff for design events and proper erosion and sediment control measures specified. - Parking lot notched corners will need to be graded to provide positive drainage to curb cuts or additional curb cuts installed to break up the catchment area. _- r,r. r Emmons&Olivier Resources,Inc. 651 Hale Ave N. Oakdale.MN 55128 17 651 770 8448 Fl 651 770 2552 www.eorinc.com memo X13 2 - Typical curb cut opening of 4'is shown in the design details. Modeled curb cut openings (12'wide at 0.5'depth)are wider than the typical shown. Curb cut width should be sized to accommodate the amount of flow and minimize surface ponding. The plans need to include the design width. - Providing an electronic version of the stormwater model file will expedite the District's review of stormwater calculations. - Provide landscaping plans to ensure plant selection can withstand frequent periods of inundation and drought and swales are vegetated prior to being brought on-line(to prevent erosion and sediment control issues to downstream property and the Kern Center Pond which is an infiltration facility). Erosion Control Plan: - Turf reinforcement mat is proposed down gradient of the curb cut openings. This mat should extend all the way down the slope to the ditch/swale bottom - Category 3 Erosion Control Blanket is specified for ditch/swales. Wood fiber is recommended for placement in areas of concentrated flow. - Additional turf reinforcement or armor is recommended at the western corner where the swale turns 90 degrees. - Turf reinforcement or additional stapling/check slots are recommended in V-style ditch bottoms and at corners of trapezoidal ditch bottoms. - Bioroll frequency in the swales should be spaced such that"Point B" (Shown in Bioroll Staking Detail) is at the same elevation of the bottom of the up-gradient bioroll-additional biorolls should be proposed in the western ditch where the current spacing is 130'@ 0.76%. - Temporary protection should be provided at curb cuts during the interim construction period. - Inconsistencies of mulch vs blanket should be avoided in the plan set or specified what measures are intended for temporary vs.permanent turf establishment. - Temporary sediment control practices are recommended in the existing ditch south of the property. - Construction phasing of swale turf establishment and connection of pavement areas should be indicated in the plans. - Indicate soil stock pile location on the plans. Emmons & Olivier Resources. Inc. 65g Hale Ave N. Oakdale, MN 55128 p: 651 770 8448 f 651-7'0.2552 www.eorinc.corn Julie Hultman From: Eric Johnson Sent: Tuesday, April 19, 2016 2:31 PM To: Julie Hultman Subject: FW: Pizza Ranch Oak Park Heights Attachments: B[VVD_Pizza_Ranch_Pne|iminary_[omments_160317.pd/ Follow Up Flag: Follow up Flag Status: Flagged 3aWb \ � o/v\n-i^��v[� -- From: Karen Kill [mailto:KKill@mnwcd.org] Sent: Monday, March 28, 2016 4:22 PM To: Kris Roppe<kris.roppe@is-grp.com> Cc: Eric Johnson<eajohnson@cityofoakparkheights.com> Subject: RE: Pizza Ranch Oak Park Heights Kris, neglected to send preliminary comments over to you. I've had some requests for permit information from Washington County and the City of Oak Park Heights. Is there a plan to submit the permit application soon? Thanks, Karen Karen Kill Administrator Brown's Creek Watershed District 455 Hayward Ave N Oakdale, MN 55128 651-330-8220 x26 Cell: 651-331-8316 FAX: 651-330-7747 Karen.kill@mnwcd.org From: Kris Roppe is'g Sent: TuesdayFebruary 09, 2016 4:44 PM To: Karen Kill Subject: RE: Pizza Ranch - Oak Park Heights Karen, Please see attached site plans and stormwater calculations. Regards, � From: Karen Kill [mailto:KKil[ rrnwcd.,org] Sent:Tuesday, February 09, 2016 4:03 PM To: Kris Roppe Subject: RE: Pizza Ranch -Oak Park Heights Kris, Send it over and will take a preliminary look. Karen From: Kris Roppe [r a lto.ekris.roppe@ is-grp.corn] Sent: Tuesday, February 09, 2016 4:02 PM To: Karen Kill Subject: Pizza Ranch - Oak Park Heights Good afternoon Karen, I called and left you a message a few weeks back regarding the proposed Pizza Ranch restaurant located in the Kern Center in Oak Park Heights. Unfortunately I missed your return call but did listen to the voice message and was able to find the information you described online. We are currently working through the City review process and have prepared plans and stormwater calculations for the site. At this time, we have not been authorized by the client to submit for the Erosion Control permit but would like to provide the watershed district with the information sent to the city. Would it be possible to send you a copy the plans and calculations for a preliminary review so we can address any questions or comments you may have? Thank you, Kristopher Roppe Designer Civil Engineering Group 201 Main Street, Suite 710 Architecture La Crosse, WI 54601 Engineering P: 608.789.2034 Environmental C: 507.951.1407 planning kris.roppe. is-grrp.corn. • in wW is r .corn 2