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Home My WebLink Aboutcomments from city engineer and attorney on proposed house �� _ � � 2335 Highway 36 W St.Paul,MN 55113 Tel 651-636-4600 Fax 651-636-1311 www.bonestroo.com June 25, 2007 �Bonestroo Mr. Lyle Oman Building Official City of Orono Post Office Box 66 Crystal Bay, MN 55323 Re: 2690 Fox Street File No. 000139-07000-1 Plat No. 07-A11097 Dear Lyle: We have reviewed the Grading Plan for the proposed house at 2690 Fox Street, tlated 6-5-07. We have the following comments with regards to engineering matters: • The survey should show existing contours extending 50" beyond all lot lines. • All existing structures antl trees shoultl be shown on the survey. In addition, the City should consider the extent of tree removals as a result of the proposed construction. • In order to tletermine existing antl proposed drainage patterns, more information, such as spot elevations, shoultl be shown along Fox Street, especially at the proposetl tlriveway. It may be necessary to atld a culvert underneath the driveway to allow drainage to continue east along Fox Street. • All existing contours shoultl be labeled. • The City should be aware that the proposed septic sites overlap. • We are concerned with the proximity of the swale to the southwest corner of the house, in adtlition to the flat grade of the swale. We would recommentl that the swale have a slope of at least 2%. • The proposed house elevation and adjacent grading is significantly higher than existing grades, requiring a large amount of fill to be used. The applicant should justify the reason for this. If you have any questions, please call me at(651) 604-4863. Yours very truly, BONESTR00 � � Darren Amundsen Cc: Tom Kellogg MEMORANDUM To: Lyle Oman, Building Official Willie Gibbs, Septic Systems Inspector Street File, 2690 Fox Street Copies: Gary Peterson A1 Kestner From: Mike Gaffron, Planning Director Date: October 16, 2006 Subject: Administrative Lot Area Variance for 2690 Fox Street _ . � ---A TTACH THIS TO B UILDING PERMIT--- The above referenced property has a lot width of 264.0 feet and contains approximately 53,700 s.f. or 1.23 acres gross area, all of which is dry buildable land. The property is zoned RR-1B Rural Residential, requiring a lot width of 200 feet and a dry buildable lot area of 2.0 acres. Per Orono Zoning Code Section 78-72(b)(3) as amended by Ordinance No. 9, Third Series on May 24, 2004, the Planning Director has the authority to grant a lot area variance if the following conditions are met: 1. The lot area and lot width each meet at least 50% of the district standards. (This standard is met) 2. Suitable primary and alternate septic sites are identified on the property and are protected from future development by execution of a covenant. (Sites are identified and approved - see attached memo by Septic Systems Inspector Willie Gibbs, attached septic system design information, and site layout survey by Gronberg & Associates dated 7-14-06; covenant document to be executed by owner and filed in chain of title is attache� 3. All other zoning ordinance requirements must be met, including but not limited to the following: i. Setbacks (Met based on proposed site plan) ii. Hardcover (Not Applicable) iii. Lot coverage by structures limited to 15% of lot area(Met) iv. Accessory structure requirements (Proposed pool has a basin area of 684 s.f. and meets the required 10' rear setback) Based on the above, an administrative lot area variance is hereby approved, subject to execution of the covenant for protection of sewage treatment sites prior to issuance of demolition and building permits. v �K �� ,�� /a� ( ( (,� �/ � 2335 Highway 36 W � ( S a�� l (/vl C�nC�� I� �--`�e -(� ( ��G� St.Paul,MN 55113 � �, ��,r� /�'ic�dsQ.i� Tel 651-636-4600 Fax 651-636-1311 www.bonestroo.com June 25, 2007 �Bonestroo Mr. Lyle Oman Building Official City of Orono Post Office Box 66 Crystal Bay, MN 55323 Re: 2690 Fox Street File No. 000139-07000-1 Plat No. 07-A11097 Dear Lyle: We have reviewetl the Grading Plan for the proposed house at 2690 Fox Street, dated 6-5-07. We have the following comments with regards to engineering matters: • The survey should show existing contours extending 50' beyontl all lot lines. �`'F �ss�� All existing structures and trees should be shown on the survey. In addition, the City should consider the extent of tree removals as a result of the proposed construction. • In order to determine existing and proposed drainage patterns, more information, such as spot elevations, should be shown along Fox Street, especially at the proposed tlriveway. It may be necessary to add a culvert underneath the driveway to allow drainage to continue east along Fox Street. • All existing contours should be labeled. �-� �ss�e-� The City should be aware that the proposed septic sites overlap. • We are concerned with the proximity of the swale to the southwest corner of the house, in addition to the flat grade of the swale. We would recommend that the swale have a slope of at least 2%. �� ,� �ss��. The proposed house elevation and adjacent grading is significantly higher than existing grades, h J� �[��G� requiring a large amount of fill to be used. The applicant should justify the reason for this. �YS��``� ��F�v,� If you have any questions, please call me at (651) 604-4863. ��,r,��\, 'M � w�P Yours very truly, BONESTR00 � , i Darren Amundsen Cc: Tom Kellogg Confiirmation Report — Memory Send Time : Ju1-03-2007 04:15pm Tel line : +9522494616 Name : CITY OF ORONO Job number . 188 Date . Jul-03 04:14pm To . 4734435 Document pages . 001 Start time . Jul-03 04:14pm End time . Jul-03 04:15pm Pages sent . 001 Status . OK Job number : 188 *** SEND SUCCESSFUL *** o !'Y�-✓IC G.-'�"L 6�q �� / Q �TnQ� 2336 Mighway 36 w �L( f S Q� W�" � / ��` �� / ��YQiYt ��'�r�s'�y7 SL Paul.MN SSl l3 Tel 65l-636-A 600 Fefc 661-636-1311 www_banostroo.com ,,,.,e 2s, zoo� �Bonestroo Mr. Lyle Oman Bullding OFFcial City of Orono Post�fFice Box 66 Crystal Bay, MN 55323 Re: 2690 Fox Sveet File No. 000"139-07000-'1 Plat No. 07-A'1 1097 Dear Lyle: We nave revi�wed tFie Gratleng Plan for the proposad Fiouse at 2690 Fox Sveet, tlated 6-5-07. We have che foilowing comments with regards to engineering mat[ers: • The survay sF�ould sl�ow extsting contours extending 50' bi>yond all loi lines. �"�"s,s��-�y� All exiscing svuctures and trees should be sYiown on ihe survay. In addiilon. the Clty should consitler che axteni of trea removals as a result of the proposed constructlon- • In orda� to dete�mine existing and proposed drainage patterns, more information, such as spot elevations, should be shown along Fox Street, especlafly at the proposed driveway. It may be necessary to add a culvert underneath th�e ciriveway to aYlow dralnage to conctnue east along Fox Sveet. � All existtng contours should I�e labeled. �-,d-�w. �ss�cz�y TF�e City should be aware that the proposed septic sites overlap. � We are concerned wfth tFie proximity of ihe swale to the southwest corner of ihe housa, in addition to th�e fla2 grade of tha swale. We would recommentl[tiat:the swale Fiave a slope of at least 2%_ h� o,,��Ss�r°�• The proposed F-�ouse alevation and adjacent grading is sign7fican2ly hlgher ihan exlscing grades, ��`� rsquiring a large amouni o�fill to be used. The appllcant xhould jusciFy tY�e reason Por xhis. 0 ��a�� If you Fiave any questions, please call me at (65l) 604-4863. 'N;,.�Q`�`�, Yours ve tfUl c rY Y• BO N ESTROO � , . Darren Amundssn Cc: 7om Kellogg , � z 6� � +-�ox .;f � :-_ �, ' CAMPBELL KNUTSON � , �. , x �-�� ECEIVE� , _ . _ _ �. �r ��-�. � � 2001 DEC � - ��.�pF pRONO November 30, 2007 -''� . .�'� >�;��t �5.�. . � , ._., � � , k�e �l.6}yCt' �. .�`a6Ftlic�'�,:-• •��'�,�,�,�5 :rf�. �;�,,.:�; Rodney S. Moore ;ili.�S:t I3. �i��es_;: 18140 Zane Street NW ��..�F��=r Elk River, MN 55330 .�r�dre��cl�c,��,��, 5c�r�'�' �. "#�"` '°` Re: Storm Sewer Easement .14:,�,,, ��. 3;.i;y. k Ee:sf t�,�..��I� _'_ ;�lana '��f3E,�:::'a,; Dear Mr. Moore: ,, E 4:,; �;71"`n .._ .. � � Please be advised that this law firm represents the City of Orono. It is my understanding that you have been working with Lyle Oman, the Orono Building Official, and Tom Kellogg, the Orono City Engineer, regarding the drainage issues located on your property. In discussing this issue with Tom Kellogg, he has made various recommendations to you regarding the most appropriate way to deal with the drainage issues on your property to prevent water from flowing toward the house that you are constructing. It is my understanding that you have installed drain tile on your property designed to carry water off your property. It is also my understanding that because this drain tile collects water from adjacent properties, Tom Kellogg has recommended that you grant the City an easement to insure that this drain tile is maintained and cleaned out to prevent any backup that would cause flooding around the house. Mr. Oman informs me that you are reluctant to grant the City an easement for the drain tile and have inquired whether the City has any authority to require the easement at this point in time. I ain writing this letter to inform you none of the approvals that have been granted require you to grant an easement for drainage purposes to the City. However, please be advised that it is the City Engineer's opinion that the house will eventually sustain some level of water damage if the drain tile is not properly mainiair�ed. If you have any questions regarding this correspondence, please feel free to contact me. Very truly yours, CAMPBELL KNUTSON Professional Association ��,E� ��; -�3.�t,..� � ` � - By: �>��-��:�41� Soren M. Mattick a. �;`"i- ^;" ..�'� SMM/jmo Cc: Lyle Oman, Orono Building Official Tom Kellogg, Orono Engineer 135544 . � ` r , 2335 Highway 36 W St.Paul,MN 55113 Te1651-636-4600 Fax 651-636-1311 www.bonestroo.com luly 16, zoo� �Bonestroo Mr. Bruce Vang Building Official City of Orono Post Office Box 66 Crystal Bay, MN 55323 Re: 2690 Fox Street File No. 000139-07000-1 Plat No. 07-A11097 Dear Bruce: We have reviewed the Grading Plan for the proposed house at 2690 Fox Street, dated 7-12-07. We have the following comments with regards to engineering matters: • The revised plan shows a rain garden at the east edge of the lot. It is our understanding that this will receive approximately half of the house run off and as much of the driveway as possible. This design is fully acceptable. • With our field inspection on 7-12-07, we located a drainage pipe that runs from the northwest corner of the property to and ties into the existing catch basing shown just east of the proposed driveway. This pipe must continue to function during and after the house construction. • If the proposed home foundation or associated grading damages or exposes the existing pipe, a solution to this situation must be approved by the city. This may require installing a new storm sewer and catch basins that connect to the existing pipe from the northwest, installing catch basins in the yard, and connecting the proposed driveway culvert to the existing catch basin. • At a minimum, we are requiring the bottom of the drainage swale to be at least eight feet wide and at a slope of 1.8%. Based on the city's Storm Water Management Plan, we calculate the depth of flow in the swale to be approximately six inches deep. The spot elevation at the upstream end of the proposed driveway culvert should be lowered 952.0 and the driveway emergency overflow should be lowered to 952.5. By sizing the swale to the width and grade noted and lowering the swale elevation to 952.0, the two feet of freeboard requirement will be met. • The city should obtain a drainage easement over the drainage way or pipe(s) along the western side of the property once the final means of storm water conveyance and location are finalized. If you have any questions, please call me at(651)604-4894. Yours very truly, BONESTR00 %—�� Darren Amundsen Cc: Tom Kellogg ��J � �� 1��'� 7 /�Ic_�� S f�-��'� �(�� x S� . ► . STEVE � o o�2 e RAIN GARDEN WORKSHEET 1)Slope: 1� Height of string(in inches) x 100 Distance between stakes(in inches) % 2)Rain garden depth: 2� From Chart on page 5 �j/ �, 3)Home footprint: 3) Length ofhouse x width of house sq.ft. 4)Number of downspouts: 4) � Total number of downspouts on home 5)Roof area draining to garden: ��L f. 1 M pERV�4N,S 5) (Line 3= Line 4) x number of downspouts J..�- .� S � sq.ft. directed to the rain garden 6)Lawn area(if more than 30 ft from downspout): 6) Length of uphill lawn area x width of uphill lawn area Z `>'. '�' S O gq.ft. 7)Total drainage area: '7) Line 5+line 6 �0, 2, U O sq.ft. 8)Soil type: g) Enter sandy,silty or clayey from results on page 7 � L A Y E Y' 9)Rain garden size factor: 9) Results from table 1 or table 2 on page 8 �• �� 10)Rain garden size: 10) Line 7 X Line 9 s ft. ti!!'f: IP.f C E COiv/T/CAtRr,T.!' d�/M/T IP�en..i GA,erFg'.�,.' 3 O � Q q• TO/,8pU'I,f; OTl��it At��'Gr�/er�F ,i(Rf�.P"fF0?l fTi�C6T/UC�c �ICJ rYJF RfQ�i�'El� .T�2 E. Lines 2 and 10 give you the dimensions ofyour rain garden. This is based on capturing 100%of the runoff. If you do not wish to build a rain garden of this size,a smaller rain garden will still help control runoffand filterpollutants. /�l (C � cj _ l RalnGardenManualforHomeowners 18 2�t, �j0 f � ,� �-/ . �\ " __ _ _ _ _ �/ �___ �� /�" . �\ ___--__ � ��----�963� -=�i'0.$� li'� \ \ ��_ � � \ ' \ —� �� I—'------� p � � �� / �� J � � \ � ��\ � � � � � ; 3� � � �/ � �� \ % A � � �O�o � :�.. �� \\ % �c � � -o ► �C � � � �---�------ ----- ----------- - --� - ----�- - ..... � o°r �--- � -� - -------------oN�o-----`� - - �-� ...---�- - -- �S\, ---------- ------ - ----- �------ �---------------------- -� � 1-� i � 90°00' 00" Vih.?�64.00 � �Q ` � �'� �� .�. -o r � ��_�1 �. .---�-�. .-�-�'�,� � �-� \ —� (9�-3) s�r�FENeE \� \ ELL \ �i \� ��_„ � % �� -,, '�. �- \ \ � \\96� �/>` /��\� � `°� /M � �� \ " � � ' \ % 1 � / ,4 0� \ 014.�o �tp ,n 16�� \ � / % \ lyJ �� I �\ (953.6) \ � � —m—�gp�\ `° 7. ` \ \ �/ \ � � , � — � � �� 1 � � ,o.00 � �� ^`�� ; � � o��_ I \� \\ Em N �SE / ��/ �\� � �-'/� 1 y I pRppOs � ` `�BAo �� 1 � „�� o _, ,, �, �--� � o � � \ / \ ��{ d o ,. � �, o. � �\ �� _ , 953.0\ n a � p� � �� 1f� �� 'S t[71 \ \ . � �� ^� � � �� 9'' --��•-- •=30--•-+---- css2.s� � o P�R H � Ro �� ,� �°D �� - —� J \ � � � I �I \ I 220� 0,6890 � `r ' .� ^�,. / � \� � I �� 9Sq� h �120 t' � �o / � -- �� I 952.5 �- �p � / �� \� \_ � � ' c� �INVERT = 9 1.8 / \\ � ��\ c \ � l\\ \ O �vG � / �/ \� �\ I I A P S� .� � \� � � I \��o pR � � / � � �� / � / �, � , ��i \ � �� l � � � D��4i.v,t G�� o g�� ` -- ` � / / RAW GARDEN \�� ARE,4 / w =`� • � �i PR � SED-- -- -------• � � / C.B. RI = 951.3_.. �'�� o \ _X�1 T FENC� i�_�� _ _�� IN = 94R.1 � � I V = 947.5 1 •� 1 ��FFOPOSED INLET __= \ '•. .'• I PROTECTION AROUND"" a / �'• : .90�00� OO�� W ZE�4.00 � � ' CATCH BASW � � ��'1 ' ` � . . � .� i�j 9A9.� � ��' �4� � '� � ) . - M� �� -.- -�^-�- (953.6) (952.3) ; J/ USE EXISTING DRIVE (95 .��i- .-` � � . - . = J .,. '+� �„ ` 950.3 � °C��" FOR CONSTRUCTION � `�c�i / � ENTRANCE � I / �-� ————————————— � ——— � .t ----�-------- /� -� ---r---- rn (946.9) �� )� �� '�j'�� -- �`1V = (945.1)