Loading...
HomeMy WebLinkAboutRE: grading/ landscaping BONESTR00 AND ASSOCIATES � 612 6361311 04/03/97 11 :04 b7 :05/06 N0:902 Bdxrtroo.Rosene,Andert7k errd Astx7ates,i+c.li s��lllrmativt�ction/Equal Oppom�rnty Employer Bonestroo P�Incfpalf:Otto G.loneitroa.PE.•Joseph G Antlerlit.PE • Muvin l Se�vala.PE.• RiCharC E.Turner,PE.•Glenn R.Cook,►.E.•Thort+u E.NOyli,P.F.•Roben G.StM�nlchi,PE.• RoseneJerry A.OourOon,RE � Robert W Rosene,P.E.+nC Su�an M EDerltn.C PA.,Senior Consultan[s � A�sotitte i�/nUpoli:Howard A.Sanfor4►.E.. Kelth/�.Gordon.PE..Ro�ert R.►it/ferle.P.E.. Anderlik & Richartl W Foster,►E.•Oavld O tofkota.P£ •AODert C Russek,A.1/1 • Mark A Hanson,►E • 1Nichacl T.Rwtmann.Y.E, � Ted K.Fltld,RE.• Kennern P./lrrderson.PE. � Mark R.Rolfs,P.E.• Associates ��''h'P wllliamso�,PE,L S.•RoDlrt F Kotsrltith O//ices:St.Paul.Rochesier,WlUmar snC St.Cioud.MN•Mequon.WI Engineers & Architects Scpternber 27, 1995 Ms, Jeanne Mabusth Building and Zoning Administrator City of Orono Post Office Box 66 ' Crystal Bay, Minnesota 55323 Rc: Otto Residcnce File No. 139-2041 Dear Jeanne, We have reviewed the revised grading plan for the residence at 4136 Highwood Road on tlle property owned by Phillip Otto. The grading plan is acceptable from an engineering perspective and we wouSd recommend approval. We have determined that the proposed grading will have no perceptible impact upon the retention area within the Glen Sauer property at 4104 Highwood Road. Please contact me at this off'ice if you have any questions regarding this matter. Yours very truly, BONESTROO, ROSENE> ANDERI.IIC & ASSOCIATF.S, INC. �. Shawn D. Gustafson, P.E. cc: Mr. & Mrs. Otto , 411 b Highwood Road Orono, MN 55364 2335 West Highway 36 ■ St. Paul, MN 551f3-3898 � 612-b36-4600 BONESTR00 AND ASSOCIATES � 612 6361311 04/03/97 11 :04 � :04/06 N0:902 � ` ''� �,, �,�� '� � �mPos�a � �oti � � � Ce����Y� � bp.��►J Y�� � �x15Y� � �' � ° °`x�j — --� ��-i'�= Z ` ` � , � �� \ ����••:� �1,:_;.^ i', � °� Vy�.�,..,�__y�.:::1 ` ;. � �'ti : . '. V- :��ti� Or. ,M�- �/ � -` c — ""'�- + �1 � �n`�4vS �., ` _' �' �- � .-- �. -^� �� '� — �v�:�_.. ,.,. �� , � �r.f 0 ��?'r� l s� �� 1 3 �t�-� wa•.�.;r,.: ��\ 0� q, ' . 'w- { l � � � � !�q w� ,f �'�` g SZ.. 5 {1 \1_''��� a _ � �G/.t�I c.a.i.. S�.o�l, ` \ o a.�r � 'f.:� � l��Y'�� f9�1E'DiTA � \ o ` � � "- - .w-- /� �'j�sT� C,�tp�l�' �/�,'[G�{ '�� � "'�""t ���• �- ".� �s �""' GeJ zR�.a 1�h�K `L � �" hSiTw- W Rt.+i M � 1 ��. r ,,,� oa � ...' " �. - - ' -'.�iTh�t. 6 i � o� r+ �_:w'' �5-�6.�-�./ s'r1tNb " .=��~�•� �`—,�. �' � o ` � - ��=a��: ��ti k Ar �l� � � .�-""' ��" -, Q � ` � � _` �_` � (� � .` ! �► 1 -��.� "'`,_� �� I �, ` `' " `�:,;�,,�:;.., y'��i} �t ?� rJ '�F�our'{T�c i►�re ��s'7 tN6 Dstd�r a) ° ~'a' �"{. / r!� �--� __� r g�.�_�;,.4 ,. �' -.� , \ —� 1 �,=�_ _ y�� s ` ; :_T"''-:ys;, ' �,� .)� �X I�!'f!!�� �' � '_:,," � -'c..'` `�'RJCXc. � , �.;_;�.._ 'y � o i P�t Ul P Q�a� ���a .�Ly." � `' ,-�`— ` — — I' _=;.�.-,�- ` , r. � � 1 s7�'�J� I 4 .,_� .._ �j� �;� , � � � �� .�� ��� � � � �� r� ��� ` .�—t:=- - � - t ��_�►� � '`�- � G',� ' ' i''�. \ �� }}' I��'� ����" C= �1 e � :�..�-� t �^1 t; t �; �z C� �$ � �� � oT E i utt, e�.►� i Nc. N� � 1 � 9 40 `� � Dov�►�se�? r _ ——_ 9� � � � .. _ __�. . . ,_ .- . � r — 'r — _`.►-+..'ev t¢-y�o^) v +!- 5� � a\ � �` . � __.. , � r •eo�os�veee `� 6 \ \ i +� �� _ _` _ _ _ t.�� ` 1 — I-' . _ _ � 9�8 � ; �ov ��J�� � �Xh� �a� 1 9 Y �o y 6 ; ,. , �b �,.,�--�-�. � . ,� 1c►�:�c cF,. 1.Ei d� T�d �'t'� � / � � Bonestroo,Rosene,Anderlik and Associates,Inc.is an Affi�ma[ive Action,'Equal Opportuniry Employer Bonestroo Principals Ot[o G Bones[roo,PE •Joseph C Anderlik,PE •Marvin L Sorvala,PE• Richard E Tumer,P.E.• Glenn 2 Cook,P.E.• Thomas E.Noyes.P.E• Robert G.Schunicht,f.E• RoseneJerry A Bourdon,PE • Robert W Rosene,PE and Susan M Eberlin,C?A,Senior Consultants � Anderlilc & Associate Principals Howard A Sanford,PE • Kei[h A Gordon PE • Robert R Pfefferle,PE • Richard W.Foster,P.E.• David O.Loskota,P.E• Robert C Russek,A.I.A.• Mark A.Hanson,RE• � Michael T.Rau[mann,P.E.• Ted KField,PE.• Kenne[h P.Anderson,P.E.• Mark R.Rolfs,f'.E• Associates Sidney f'Williamson,f?E,LS �Robert F Kotsmith Offices:St.Paul,Rochester,Willmar and St Cloud,MN• Mequon,WI Engineers & Architects i . F ` 1-- � ' - , ' _ ` , ' � � �l�� Yr �!_�,��,L1 �i April 4, 1997 �� �� � ��� �� ;�, �, ,�� Mr. Lyle Oman � '"�-= Citv of Orono P.O. Box 66 Crystal Bay, MN 55323 Re: Otto Residence BRA File No. 139-2041 Dear Lyle: We have reviewed the grading for the property owned by Phillip Otto, 4116 Highwood Road, and have found that the finished grading does not conform to the previously approved plans. The previously approved grading plan was submitted in September of 1995. This plan proposed only minor filling below the 956 contour (see Exhibit 1). Our initial review concluded that the grading plan was acceptable and would have minimal effects on the storage capacity of the pond (see attached letter). The completed grading plan submitted in October of 1996 shows up to a six-foot depth of additional fill below the 956 contour. Also, it appears that the applicant has filled portions of the adjoining properties. The increase in fill is distinctly shown near the existing maple tree, which has up to five feet of fill placed around it (see Exhibit 2). The north half of this lot is part of a storm water ponding area that provides storage for 3.4 acres of direct drainage and 16.5 acres of indirect drainage. This ponding area has a history of flooding problems due to an inadequate pipe outlet between the pond and Lake Minnetonka. Because it is unknown if this outlet pipe will ever be replaced, it is very important �o maintain the storage volume of this ponding area. The amount of fill significantly lowers the storage � capacity of the pond and would increase the potential of flooding the adjacent homes. To alleviate the potential flooding problem, the fill in the low area below the existing 954 contour must be removed. In addition to the increased fill, it appears that the grading has extended beyond the property lines. This fill must also be removed unless the adjoining property owner appiies for a separate grading permit and it is approved by the City. 2335 West Highway 3G ■ St. f'aul, MN 55113-3898 ■ G12-G3G-4G00 ��� Bonestroo,Rosene.Mderlik and Associates,lnc.is an A//iimative Action/Equal Opportunity Employer BonestrooPiincipals:Otto G.Bonestroo,P.E.•Joseph C.Anderlik,P.E.•Marvin L.Sorvala,FE.• Richard E.7urner,PE.•Glenn R.Cook,P.E.�Thomas E.Noyes,PE.•Robert G.Schunicht,P.E.• RoseneJerry A Bourdon,FE.•RoGert W.Rosene.P.E.and Susan M.EDerlin,C FA,Senior Consultants � Associate Princlpalr Howara A.San(ord.P.E.• Keith A.Gordon.FE.•Robert R.Pfefferle.P.E.• Anderlik & Rlchard W Fozter.PE.•David O Loskota,P.E.•Robert C.Russek,A.I.A.• Mark A.Hanson.FE.• Michael T.Rautmann.P.E.• Ted K.Field,P.E.• Kenneth P.Anderson,PE.•Mark R.Rolfs,P.E.• Associates SiOney P Williamson,PE.,L S •Robert F.Kotsmlth Ol�ices:St.Paul,Rochester,Willmar and St.Cloud,MN• Mequon.WI Engineers &Architects September 27, 1995 Ms. Jeanne Mabusth Building and Zoning Administrator City of Orono Post Office Box 66 ' Crystal Bay, Minnesota 55323 Re: Otto Residence File No. 139-2041 Dear Jeanne, We have reviewed the revised grading plan for the residence at 4116 Highwood Road on the property owned by Phillip Otto. The grading plan is acceptable from an engineering perspective and we would recommend approval. We have determined that the proposed grading will have no perceptible impact upon the retention area within the Glen Sauer property at 4104 Highwood Road. Please contact me at this office if you have any questions regarding this matter. Yours very truly, BONESTROO, ROSENE, ANDERLIK&ASSOCIATES, INC. �. Shawn D. Gustafson, P.E. cc: Mr. &Mrs. Otto 4116 Highwood Road � Orono, MN 55364 2335 West Highway 36 ■ St. Paul, MN 55113-3898 ■ 612-636-4600 \ ' �/' /�', �`` t��Po�e� \ Sofl (/ � Con-���v� \ 'bp�►FJ�i� /� �7`t5T1 / ` p Ol1T�-� N l� 2 � � � '� � � \ ' � � \ �-��! _:- � _ , ��y `_.. �_� / \ � ., .'� I ,. � �� � w- -��-�== OY; �r,Q � e t�..� _� �� � ` � -_ y� - � - =� � �n�kvS , \ � �` -� ...� r.- � '�c ` ` ti=-="='�_-•- '� r.] p _ -�._� v: ��� �.,� ='� a ����;��1 9 So � n� _ .:.���= -,-. Q ',-='-��= i / . � ^v� � �- . ��". �` � �_ ' 1 � � g - � \ a _ ___ _ 951. , �Gf.i'�lu.:.. st,o� � � • ��P�'�'e � ,� �=� g - '- �'' , , ��A \ � �' � `" -" � `° "- :::: ,s/ '�J cr� �Rot�3 t� �/�^[c.N ?�+�tJ , ' �"C'�'�' "��, - - " '' C.oJ� �� 9TP•p� � � �- � ` r SE-"`' _ WITK- GVRI-d RD�. �►' -� �,,� .>'" - / � _ __ � - !r.�T1�T+D�. � � a° P`� ___ _ -r=' " ����5(�,_.../ �y'tlNb �....� -���--: �� \ � � . ��� �o � ���_-��; �,�j �� y ` �s- . �' �, -- � �=-:_ '-_ c) $ 't � � -.� ..._ .` �-- � � _:�!}l_! _ -__� •\.\�` �' � \ `,�',,1_ 95�a� \J� � �--�n1 S�rC�� ��rv��s�i r1��a.�tJ) ��._ - - --i �;.-{„� � ./ _____—. i g- —=s-- - :� c� \ '� -�= '� �� .����� � _ � '� � � =�.z:�:.: ., \��`�� :�� � �x�STra� -. ° �:. �.�.-L ���G� � � �� � - _ Y� � � p�c�,� p �Ti t�; � � �¢ .--:--- : : � , � � _�- �, �. � � , — —�,� �:i:�= �;' � '�.��,�� � � � � �� ��� -: _ f� ���' , , w�. � a � �! + - " , C_11 S t—f-�--.--�-'. ` � E....��� �,_� ��A`', \ No +� �''^ 1�`—�" r���° . � t r__ o �.�� bz o �. � � ��� l, 1 . _i �� � �� aa►1 s+t��rCr E ,Krv e�c�Yc►�w D¢.a�N� �.. 1 � g�o \ \ _ D _ . . -.- �=�'- --.� q � . � � ' y •- � I C 1 � \` . ' �( G� bR��� T�P �'.5 e00000`0000 � �Q \ � \ I ; �e'S r'1�� ' ± _ .��-- -- — -.- — _ � 6� �\ � � y�8 � i � sor� __ --- ��J�Y 1 �"x h► 6,� .1 �a I 6 j �� � ' �b :�� '� a�:�;i S6.��3 �2 tc,� .�r�= ' - ` /S � � � ����!t. ��ll�"�.�' . , ' ( ' , . 1! ' .' \ , I �'�l �� f:. , :, . .., , . N . � , , ,� , , ' �;> , . , : � ', . � � � � ' � �.. � � '��` ' � � �� , `�` � , . '� . � .� /G� � . ,, _ N -� . ir� � .�.,�, ���� � , . , , � . � r�. •�, --� �-l. x � „i—�.-.a r ' � r-"�,.r, :, ` `F;' �� •.� �y�,,.�� .�• :� "� �,. f � �t�ti � � � , , , d •� � �.. � ,s` .. ., J . `"";r��y� ,�+.��p � ',� �,�, i' i �. ('/ ` ' ,�. f/� •, � "i +,, ' . , � ._.----r-----•- =4----- .•.-; _:.._ _.��,�,...✓ ,, . �,. �_ "" -"'-"...... . .. .-.' . .. , �'^+y�, `, 5� 1,� ��`�' . '�' +�'�.c:� r.�.. 'r�.�'/ �.�.�' ""„"' +!T+i ��i'�i .✓ r7(/�$ � ' .� tr=1�� �I� i � '�w .' �'•�,.J' .. ../ ,:-.. ��''t�--"' . �' �1 ..:.-�`/� � ,./ • .:�' .., ,'i: ... �;,.�`fj �:•�aJ� ,�_',_ �--�'9� ,-.- -�� :; ;�,." , ..�� .... ...--. • • ,;� � -'' � -� �`1ti,� �.,�, .....�. _ . �✓ '� � i '� ✓� r- y'^r,, . •� . � .,, r. ��j> „ . ,e . ./� ' � ¢ •,�C .. - ,i''''� ./ `i�t��`' ,. / b � i' ... ,�"' �.r , , '`� � � � �,• _ _ . -�.,`S..t,�,•;"' , .�- .r_�/�� r �' � y.�-.�--�`�-�y�.y��'�'"T i.�'i�� �,-r d ti.� ' �`�Ct.' • �'V �J '� � �"' '�,:n. '•t. / / , l' r . � .�"'- �i/1�.�t 'J.1� :��.J..� d� �' � t •,`y I ., / ''J, 1.��' ( !/ , , � . . � ' .� � CY�/�w�� �7�0 • ,f \��I'� f.. . ,� /' � � �; 7�� � d___��...._..._.� __.___._.....___.---� t .�� , , y r / � I�J L/ �1... -�"'""'' i` t �'t'','" j { �! /. � � . . , lJ� i , . . ,� � ... ., ;,��tr,'/V� / 1 / .'� • , + . � � i . .�,�hl, ' r, , r ; , . , / � y ; ` • � . ' J , � � �� , y � � . 1� , � � :;,;.�::�. ;.,.:: , � . . ; ��� .� i . � .. .� n•�'�� �= . , . �, �,: , - �� , . .,� � ` � � �.- �,� ,`�� . ..o . . . I— ` , , � ... , ;--� •I ' ' a►�c�r.� � ! � , , ., ,l �. _�; � ���� �- - �i � ' � � ;._ _ ; ���►����s� � �.. i . � ►" " -! � . . �.( . ;: ' � ;;- , . � ' . 1 ' __....___. ._ . _ ,..._ � _ --_..___. - -.-- �.. � � � , � .. ,-����` , . � --. - - . � � -_-�. �::;:.., � ----- -------.--�-- �--- . .___ � --��. ,: - - , . �_3�� 1� �' � .=�6 9'����:, .,.�- . - .> � � , . ., �, , ..� . .�.� . �.. � � ,... , .r _ ` � � / '" � '1 - � � / � � � �'/L� O��/ GL—�oF �-�.o � � ,� ���c> ����y�:�%�y , �'-r�.r�o /�.,r/ �s�al� � RECEIVEi3 APR 1 S 1997 CITY OF ORONO NF�v Lyc-� i Z ,�E�/.iE av'�1� j�i%� L-�T/"t�i2 S�� i�r-�,e.�L_ �f� /�!"1� �i���� �5,�-./��li�/ G-✓.��T..��S��t/ �� �c�s LB�-E � w'U�-C-c_� L�E � /11��?- Gr.Ji�f� �i�GC, /f�� 4=.r��L�'�� L���G �"7 �DG�c.2 ���L-Z� i C4��/���v'C�t,.�G� • Q�/ ,����U�1� �h� �sy �'��/To�2 c�.�E C,cJJ.�LL /�/�-t�� /�' C-GL'•�i`- ,,��t.'� �/f� �i1/���/� �tii�C-L ,�u.,�/ /�'I��� ��-`�T"C2 ���-s�-' Z� ���� l��S %��v �rz= �-^',4�5 i c,�.�� ���c�4 zT ��v�� �l�-t✓��-y. �f� ���.c/S�z��c.'� C�,���F� /��ti�/- ��� �'X'.C'�t-2�� f�'l�siv L-y ��t,� i�f�� ��c�� o� �l/ �-�2;�� ��� (�izc��lT �f2LLC��y ���) . G'��E �/��E ��S C I�CJS�� �f�ZS 2>�L�C��- �'�r����L Ti Nf�5 ��t/ ��c.% ��i. G'�GL% C°`vt� �� � �',o/�r P�z-�✓LL.�/� ��C�-7".�0�/ �' o!c� E� T�'' �o���C.�T� ���-`� �.e���.i��� Z Gtf,��c.- C"�•�-p L/ ��4�� �ff� G9a/���.A�C/Z �� ���r��y'c2-- ��i ��� ��2- ,� �1����l c� �,,����/ y�� . % \- �� ..... /�� . � /LiC.E-ti;•f- (.,� j�-1�.� � .� r 'L C �� �'i�-" %/'�- � � cc � �.��:�✓� L�%T">�%_5 � � %,� �q-P,�s1- y l-�'lI���i'��c, �,P n�'J'C `'�j.�.�wi�-� �t��i�'��-✓ " %G�-��? C.ET%F!e`a 5�1,�% ��/ /l/�� nGi�''��� �7-�'i� ���. � f� C.�rr�ED �s>�rzo�ci ,�2��-r ��o �� �2y ��������� N�J C��-�G�i�-�� . ;� c�!,r!�� C�i✓7/LG' /�C� �� (it/� C'--�-/ ��(���� .-/�,��c,e�s-�/ � �" � ��� :..�=�,f %�-' �� ���;G. ;;l�l..� �>�<-/ �� ���'�'�� ,�/� s�:�j' / \;%;/zl ��C�- /?�� Landscape and Drainage Issue 4116 Highwood Road Orono. MN Objectives: Owners: Owners of the property, Phil and Darcy Otto, wish to preserve the greatest amount of"useable"yard space while not negatively impacting the amount or ve(ocity of run-off to the adjacent property owners. City: The City must retain the pre-existing drainage conditions (prior to construction). Recit�ils: Prior to the construction, the subject property had been the site of a ramshackle home which was destroyed by fire years ago. At the time, the rear of the site was a literal cliff which dropped off with such intensity that any attempt to control the run-off of water would have been impossible. During the construction process, the Owners have modified the prior grade of the property to allow for a gradual slope to the adjacent properties. It is their belief that they have improved the transition of elevations which would have the effect of slowing the velcx;ity of run-off. While there has been some"spill-over" of fill onto the property on the east, this minimal amount of fill can be easily removed. The placement of a rather small amount of fill onto the property to the west was done with the consent of the adjacent property owner, to again improve a significant elevation change between the properties. For the past year, the City and the Owners have met and spoken on several occasions attempting to resolve the issues relating to the proposed grading of the subject pr�perty in order to complete construction of their(the Owners) home. Last fall it seemed as though a compromise was reached between the parties which would have allowed for the grading process to move forward in the spring to complete the project and allow for the sodding and landscaping of the property to begin. it was the owners understanding that the installati�n of a trench drain at the lower end of their drive and some minor alterations of the existing grade would allow them to finally complete their home and give them a useable yard. In summary, the Owners are willing to remove fill at the lower end of their yard so that the amount of water retention is equal to that which existed prior to construction. They request that the City allow the existing fill on the property to the west to remain which allows for the gradua! flow c�f water to the rear of the property. They agree that any spill-over to the property to the east will be removed. The owners request that the City move quickly so that sodding of the yard can begin as soon as possible to alleviate any further deterioration of the existing fill which would further add to the amount of fill in the area of concern as well as give their one year old daughter a place tc�play. /�/z�./9/. i� ii �y�F On2,¢�l/ �����v.�"a CZTY c�� O✓L D�V C� �C`,y0 r D� �ssry1�;7CAf� ���►�C/5 ��-� KF�Ey �Kw�y p�p�tJ O� ��/ r 5"3 S(c ,����o �y�E� ��g�✓ � 2 A�'� �H-�� c��c�.��/T Ek.z�s?�� �� r"'izo r�dsE� �t-�I/�T.,�'c�v�S . /�l- o�= Ti�E ► X � �9'�� YYIA�'1-KE,D �4�Q �%��G�� , �•�/E !,c/a.�c� �i2a ,�o�E � ��t/E" ?�� r9242c..z�r y �v �S K. F� ,�- ��N �4 �- GR�9-�C . 7ff� c�✓L y �l�!/.�-T�"GhJ C�,�A-,l/6f-�5 �au-c,t� �E" Co�c/ Tv u-�z�v�- �o�L -r0 T� ,��A'� o� ;; ��-� �� E" �/d �i�,r:l 2�vE; Ta r�- �v.,�.."`.c_.., 'E �,�io� � �So a.v za/6'. . � �� �ri� ��c/S�E��To/z v �,.c�C`. �r" ;' �S N��,�5 S��'L Y G�/� C�-� Z�ST•¢���- :� �' � �'l�o�T �2FTi9-��J.�� �r/�C� �y�r�l'lt ��/.� -, �'` 7"h�� EJ�z� T'�iV r'' �'f'L4�� T/� r�� Tff�" ;t i� �� � � � ��a� �E���s ,��, �y �dP��i �; j[ �pi2 b�2�, � ;: G✓E W�� �9-�l.�a r�.�2D�05 E 7� ��4�'' � ��L� So�l.- /.�2.p�r1/C� y"�E ��ST'S�/� . �. ; �4m E�z�l �zNb€�/ � a.�/�` T��" ��. �l.�i�SE' LE7' /�� ��'t/ �� �/t�s G�rLC. c.u�2,� �.1� -v✓NE�✓ yaw ���d c�� � rN��T. ,�. (�Iz) �-�z- j,3s'y ��.�����. � `t `�� ,. �� �f . I ; ' L Y� �" c�r�-�/ €. ���Ty oF �vzav o �o/Z�/9` `Z�so / �K�.✓.�y �rC�LL� �qR u•v O � �».v J s 3s� �i » o, � � � ,4�c��.v L f/�E� s �: Z�ivt E�/C.�..o� .L�i✓G ��.ZS L�'T'�/2- .L3 EC�4-�u.�E i: G"�'= �ff� �.¢--�T �l�.¢-T- �rJ y ,c/EZ'csi�'-,8�2 ��.7"�¢�.5a�✓ Tif��t`S , � �1�11> �" wb�-L d 1/�/2y �"►'�l�c..c.� �O L.Z"�c�' ?`U ! �, f��-r/E l��2 y�¢-rL,d S Q ��- �'A/ I�CS�N?"� C� , ' o��E�2 . � j: A-FfE�L ?J�t.K,�v� r,✓.�9'i►� ��',q�cw �" f�.y-vE i �: C��c.t.�.d�.Q '7��4-T �,vE cd�G�. �o �u�•�-�E�✓E�'L. 1�' �. ` �kES �'o CG�PL�'TE` �z �iPv J�CTS� ��TS � j, it'�'l�.t"�JZ�J� c✓�-Ltr A-N� aR•i�'�v T'x(„� s /yt Y L�9�vaSC�f� �i ��-�vs �.✓.�7`N� �R�r�u T'SG.E' � , c�A-5 oN �LS n '� sA-z� I��'� l,va�e.c.�tS ,tgE �✓s[.[,..�ivG' � Go.✓FSR r�'! �� ;� 7ff�5 .��J w/Z- rT".Z��/�y' 2"F �t/EC�C�':�i¢s�S/, �!� . s'�.¢-v �9- C� �rv �r�E �✓ch� ��r� ;; �'�'l �"R€� ' ,Ba..�LT �I'v �'�-T.�51�'y �o.�,►E o�' �'� k//�TZ���2.. r � �i2o,Q[.��xs v� o�.�� �ri2,t�T. T"�� ��x� T.t�Y� k � ; Y�� G� �v�t.E c�T'' 1 �t/Ok-L.t1 G�K-E'^ T'� ' �s�o w yo`e�, �a cv w E' ,�,�o��+�r� ro z�✓sr.�� . � �� ': �b��..�c.y �� �Ev.�s � P�,�s �� �; ..�,c�v�y .�/�o�- �at��'`.r�/ w.�c.c, �-�t.� Yo�. . �: i�crcre. . �' I � t t '� Bonestroo,Rosene,Anderlik and Associates,lnc.is an A//irmative Adion/Equal Opportunity Employer Bonestroo Principals Ot[o G Bones[roo,PE •Joseph C AndPrlik,PE • Marvin L Sorvala,PE • Richard E.Tumer,PE.• Glenn R.Cook,P.E.• 7homas E.Noyes,P.E.• Rober[G.Schunich[,P.E• C� Rosene Jerry A Bourdon.PE •Rober[W Rosene,PE and Susan M Eberlin.C PA,Senior Consultants A n d e r l i k & Associate Principals Howard A Sanford,PE • Keith A Gordon,PE •Rober[R Pfefferle,PE • Richard W.Foster,PE.•David O.Losko[a,PE.•Rober[G Russek,A.I.A.• Mark A.Hanson,PE.• Michael T.Rautmann,P.E.• 7ed K.Field,PE.• Kenne[h P.Anderson,FE.•Mark R.Rolfs.FE.• Associ�tes Sidney P Williamson,PE,L S • Robert F Kotsmi[h Of/ices:SL Paul,Rochester,Willmar and SL Cloud,MN• Mequon,WI Engineers & Architects April 4, 1997 Mr. Lyle Oman City of Orono P.O. Box 66 Crystal Bay, MN 55323 Re: Otto Residence BRA File No. 139-2041 Dear Lyle: We have reviewed the grading for the property owned by Phillip Otto, 41 16 Highwood Road, and have found that the finished grading does not conform to the previously approved plans. The previously approved grading plan was submitted in 5eptember of 1995. This plan proposed only minor filling below the 956 contour (see Exhibit 1). Our initial review concluded that the grading plan was acceptable and would have minimal effects on the storage capacity of the pond (see attached letter). The completed grading plan submitted in October of 1996 shows up to a six-foot depth of additional fill below the 956 contour. Also, it appears that the applicant has filled portions of the adjoining properties. The increase in fill is distinctly stiown near the existing maple tree, which has up to five feet of fill placed around it (see Exhibit 2). The north half of this lot is part of a storm water ponding area that provides storage for 3.4 acres of direct drainage and 16.5 acres of indirect drainage. This ponding area has a history of flooding problems due to an inadequate pipe outlet between the pond and Lake Minnetonka. Because it is unknown if this outlet pipe will ever be replaced, it is very important to maintain the storage volume of this ponding area. The amount of fill significantly lowers the storage ' capacity of the pond and would increase the potential of flooding the adjacent homes. To alleviate the potential flooding problem, the fill in the low area below the existing 954 contour must be removed. In addition to the increased fill, it appears that the grading has extended beyond the property lines. This fill must also be removed unless the adjoining property owner applies for a separate grading permit and it is approved by the City. 2335 West Highway 3G ■ St. Paul, MN 55113-3898 ■ G12-G3G-4G00