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HomeMy WebLinkAboutas-built drainage plan Ker�per � ,4sso�'s����, l��. i��� ,^�N�� ; ,-=� _ 721 Old Hwy. 8 NW =;:.- -- _. New Brighton, MN 55112 -,��,?t �i � ;;_;1,;,;� Telephone: (651) 631-0351 � FaX: (651) 631-8805 �.s��,' ,�j� ;J;.-;-;,;�,r,; email: kemper@pro-ns.net '�'�`�' July 14 , 2003 Bruce Vang (612/201-7259 cell) City Building Inspector City of Orono P.O. Box 66 Crystal Bay, MN 55323 Phone: 952/249-4600 RE: Nystrom/Olson Property Lots 13 & 14 , Coffee's Addition to Shadywood Concordia Street, Orono, Minnesota Dear Mr. Vang: As per your request, we have reviewed the asbuilt swale at the Nustrom/Olson property at 1725 Concordia Street in Orono. It is our opinion that this swale, approximately 2 . 5 - 4 feet wide and + 4 - 6" in depth, will be able to handle tl-ie 100 year storm (or 5 . 9" rainfall in 24 hours) . The addition of an area of riprap as shown on our survey and photo will prevent erosion to the swale and keep the water from entering the neighbor' s property to the north. I hope the enclosed information will document this swale to your satisfaction. 'lf y0U P1aV2 any questions� �i�ciS2 Cjl�'� Gi;'t Gi.iiC_: ._:. call . Sincerely, � _.� -�.�� f�_ ` � �, � �� Mark D. Kemper, PLS A fred B. Kemper, PE Professional Lanc1 S�_�rveyors & Engineers � �� O O .� � CITY of ORONO �, Municipal Offices ti Street Address: Mailing Address: ��'9x' p�'�G 2750 Kelley Parkway P.O. Box 66 E3H Orono, MN 55356 Crystal Bay, MN 55323-0066 July 16, 2004 Mr. Donald Belwaski 3819 Colorado Ave n Crystal MN 55422 Dear Mr. Belawski; Subject: 1695 Concordia Avenue Drainage Enclosed you will find an as built drainage plan for the property at 1725 Concordia Avenue. A new house was constructed on this property in 1993 which was in conformance with the City of Orono hardcover regulations. These regulations are inplace to liinit the amount of stormwater runoff froin building projects. A drainage swale was coizstructed on the north side of this property to drain the water from the new house towards Lake Miiuletonka. The City's position is that reasonable steps have been taken to limit stortn water drainage impacts from this project. The area between Concordia Avenue and Lake Miruietoi-ilca in which your property is located is very low and flat with ground elevations only a few feet higher than Lalce Miruletoi�lca, so it is likely that there could be drainage problems such as ponded water in this area especially cluring wet periods, and when the lalce elevation is high. The attached map, with 2' elevation contours clearly shows the flat topography in this area. In suminary, our positioti is that fhe City 17as taken adequate and reasonable steps to limit drainage impacts related to the new house construction at 1725 Concordia Avenue and has no fiirther legal responsibility in regards to tl�is issue. Thank you for your assistance iii this matter. � . . _ .. _ :. _. _ Sincerely;. _ . . . . , �� _�_ , � , ���`" �.�C.�''��-�� _ _ C�re�CTaPpa ` Director of PubTic�ervices " " ' Telephone(952)249-4600 • Fax(952)249-4616 www.ci.orono.mn.us , SURiCIENTLY SILEO TO HAN�Il. py]{��-�I]-:3 2=0011 4PP 7HE 1W-'!F_AR�TORN(5.9"Itl . I ?5 HOUPS)FOF 1HE URAINACE Ili \ � n AREA SEflvEO r�J RIA1 9}5.52 fi DEEP�RPINPGE SWnI.E ����924,95 I 'II FOUND 3/4' � �� FlLLED WiH]"-�HOUNfJL� IRON PIPE � ROCK N1iN FRBftIC BASE s���ry SNEO SET SUR�EY MONUM[Nl ,,II EYiSTNG t�FP.OPOSF.O ELEV.93�.4 262.3(R) SIICD Y gC.00 TO CE�lTERIINE OF EASE�ENT I ' i C�FN54A�E n � P - MMNfO"KEMPER 1810]" S 89'24�4�" F 267.39 �- q � y E%ISiIN4 h FR(WOSED EIEV.938.fi o (PEN DOC No.86798�) , , ' � � _ �__-'_'_ -__-__-'_ �II �15.81 _._ ".. _ _. " . .. . ; . '. �_ _ -_ _ '. '_. _ '_-_ _ --___ -_ -_'-�� . __ .. _ ." "- _- _.-_ _'-. ...-__-�. .. . __ . . _ __ _"__. _ " - _151.58 -_ .. .. f`\�- "' " SWRLE CONPNUES TO LANOSCAPING r �/LRIP RAP / - i I �II BED NEAR LANE.SWAIF.FlLLEO � - �0'S�E SETBACK-UNE_ -'_ _��_ -'`/ SWALE - - -� - 1 1Nh1<'OP W000 MUICH . �.-y�� .7, . I.. � . . . � �,., � �s.on � �� r p � ��II W f'O5� \ 'I o�ERNANC `�!. 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P S ti' � '. �4'S��4 107.60 _ w3 I ' - 1 TOTAL LOT AR 4 �� G ���.l�F'I 1,� � 26 �� �i�yx 1 5�.y ' � W IIII ti \ PID/17-117-73 2P 0020 , � 2135 l J� <a I�� /51 - `<y� p WPLKS�'' ,'f�n I �� 4�h42- I b¢ I I O � : �)11� N � , ' L., cPn�c 4,�� �� � '' fr 4� �-I - 1 v� � va II i PARCEL AREA 1Il �� t� 65 1 ..�' / F�i -2 '� i'�` . , � 20,326 SWME FEET p { � �III � � Oft O.Ffi66 ACRES I� 11� 1 B . �OVEI7HPNC �o / `. �PqyER 0�/ � � 4 S'i.r� yS. `� S �' � > p��}� li ]5A0 7.5�, ` 1725 CONCORDIA ST�. I �W / �' .-�'-�EWAY �4 4S 4. }''�Y"�� �� FWND � �8`�"-r , m.91 2 SiOFiY FRAME RESIOMCE � / � �.t �4�.� y.��i 3/4 3 �i"�r��.� IIII � /3/4N0 � � �� BUUDING FOOTPRINT 325'. 4 . - " '- .. . .. . . '��� IRON PIPE � � i IRON PIPE i �� .'� MEA=3.60fi 50.R �i��1 lt i 4 I `��' r � i Nh � 4'vi _-i��j / w 101.00 IO CENTER�.INE OF E�SEIIENT(PFR OOf:S.No 96�985 h<(67991)___ . Q fy L� -__ _ _ _-' - _ lR. E�� � .� �� . I _ __ "__ _ ___. Y i'�c -__._ ... /. 1� l �+� ' " } ,+ 6.39 �Ev.9J766 �.i .___ -__ . . ._ __ _.. �� _ Ii -z I ,m���. kA1N��L }25 ,�'1 / I � W fr»Y� ��)I ~ �F . ELEV.936.S�i w � � L� ;, � �; � ' 1 � 6,5 �1 � � o N � ��I I w 3 �����I �106 �J I ! I� � � � _ �_ � � FR( I ; s�m\ ,�� ^' � � �� ^� ' 1}1 O�ERHANG I / I� I � n rv �LLo ( � 4 972V 1 � z �II a e PID 17-11]�23 22 0019 . 1t1�`t'��� , .. = / � I � O! \ � w 7 PARCEI MEA � {YI'.9,B' - m r ', / � I I e v Z 20.79 SOUARE FEET ' `l }���� � �c 1 � �2 ' �1 ` I _ 1 ��I� � ° � '� ��' ,1 t P �0°' F/� y m �i � "'� Oft�.46]2 ACRES I lll�Il��'� �to. I � I I� I 'S o OVERNANG .�TaIAC �i1 -_ � rm '�^ I MH t 5 a� ^ �n OINV 93]55 j�'. ��I I o+,1�i 2M y 75.00 O ' `�r�aP i Fi4-V� �/o � 1 R�u 94]90 "�S � � �������� i / � � �x �;�' � � II�� I/ � _ ��: \ , m o I � `NO I � PP � �.���� ��il � � �� � ��� � N � � ,f h � , �� .�, ��II - - - - --f � - _ . _ , _- � -7 I / 9.5'SDE SETBAp(UNE - ' - - ��I � _', _ _ . _"_ _'_ ' __ '. ..___ __ "--_' _ _ _ -'_ _ '_25965- .. .. ... 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