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6.2 ITEM 6.2. ( MEMORANDUM tIy of � ke • River TO: Planning Commission FROM: Scott Harlicker, Planning Assistant DATE: February 25, 1997 SUBJECT: Preliminary Plat Request by Good Value Homes Public Hearing Case No. P 97-1 Request Good Value Homes is requesting preliminary plat approval to subdivide approximately 40 acres into 14 residential lots. Location • The project is located at 198th Avenue alignment and Pascal Street., SE 1/4 of the SE 1/4 of Section 19, Twp. 33, Range 26. Zoning/Land use Rla (Single Family Residential) / LR (Low Density Residential) Attachments Location map Zoning Map Preliminary plat Letter from the City Engineer dated 2/17/97 Overview Existing Conditions This preliminary plat request involves a 40 acre parcel. The site is mostly wooded with a small portion of the northeast corner open field. The property is hilly with a number of wetlands, depressions and knolls. 13065 Orono Parkway • P.O. Box 490 • Elk River, MN 55330 • (612) 441-7420 • Fax: (612) 441-7425 . The property is surrounded on 3 sides by 2.5 acre lots; to the east is M-Vale, to the south are 2.5 acre lots, to the north is Hobitt Hills and to the west is an undeveloped 40 acre parcel. The surrounding properties are all zoned Rla. Wetlands There are 10 wetlands that impact this development. Six are located in the north and northeast portion of the plat. They impact the layout of the road as well as the configuration of the lot lines. The street has to be laid out so that it avoids the wetlands whenever possible and the lots have to be configured to allow an area for the house, primary and secondary septic locations, and wells while maintaining the required setbacks from the wetlands. There is an area near the intersection of the proposed road and Pascal Street were the proposed road will encroach into a wetland; there is another area in front of lot 4 on the eastern part of the plat that may also encroach into a wetland. Wetland mitigation plans will have to be submitted and approved if any development infringes into any wetland. Approval of this plat will be conditioned upon receiving appropriate wetland permits from the city and other agencies. The zoning code also requires that if there are any class 3, 4 or 5 wetlands • one acre or larger on a lot the wetland can not be included when determining lot size. There is one lot on the north side of the intersection of Pascal Street and the proposed road that will be affected by this regulation. The lot lines may have to be adjusted so that this lot will have 2.5 acres, not including the wetland. Minimum Lot Size The minimum lot size in the Rla district is 2.5 acres with a minimum lot width of 160 feet. The 14 lots range in size from 2.5 acres to 3.1 acres. All of the lots comply with the minimum lot size and width. Lot 1 is 2.79 acres in size which meets the minimum lot size requirement; however, since the wetland on lot 1 can not be included when determining lot size, the lot line between lot 1 and lot 2 may have to be adjusted if the wetlands on lot 1 are more than .29 acres. Well and Septic The applicant has proposed locations for primary and secondary septic systems. However, some of the proposed locations are in locations that would likely not work such as behind a wetlands, to close to a wetland or in a IIIlocation that is separated from the proposed house pad by a drainage • easement. The applicant should revise the proposed septic locations to ensure that they are located in a position which would actually work. County Ditches There appear to be 2 county ditches that are located on the parcel. Since the placement of houses, septic systems and wells are affected by the ditches, the applicant will have to provide accurate locations of these ditches. The applicant will also have to provide drainage and utility easements over the ditches. The plat will be reviewed by the County Ditch Inspector to ensure that the location of the ditches are shown accurately on the plat. Streets The proposed road will intersect with Pascal Street in the northwest corner of the site. Pascal Street will have to be improved to city standards so that it can be used to provide access to the site. An agreement with the adjacent property owner to the west will have to be reached so that the proposed road will be able to be constructed to connect with Pascal Street. The proposed intersection of Pascal Street and the new road is not • perpendicular. Roads should intersect at 90 degree angles. The proposed street should be redesigned so that it intersects with Pascal at a 90 degree angle. The proposed road will be constructed to city standards which includes bituminous surface and curbs. The street is proposed to loop through the site and extend to the western boundary of the plat. The applicant will have to provide additional information that shows that the road will be able to be extended on to the adjacent property from the proposed location. It is likely that the proposed plat will eventually be connected to Weatherwood on the west and the existing streets to the south. These connections, if they occur, will be part of the development of the 40 acres to the west of this plat. Within that 40 acres there is the opportunity to connect to Queen Street on the south and 198th Avenue on the west. There is an existing right-of-way provided for the extension of Ogden Street directly to the south of this plat. However, there is a large wetland in the area where the right-of-way abuts the property so that it can not be utilized for a road connection. Grading and Drainage • • The grading and drainage issues are addressed in the City Engineer's letter dated 2/17/97. It was noted that there was some concern that drainage would be directed to the southwest corner of the plat and on to the adjacent property. Recommendation It is recommended that the Planning Commission recommend approval of the preliminary plat request for Oakwood Hills with the following conditions: 1. A developers agreement be prepared outlining the terms and conditions of the plat approval and installation of improvements. 2. All of the comments in the City Engineer's memo dated 25/17/97 be incorporated into the revised preliminary plat and made a condition of this approval. 3. A letter of credit be provided to the City in the amount of 100% of the costs of the public improvements. 4. Upon completing all of the improvements and having them accepted by the City, a warranty bond in the amount of 25 % of the improvement III costs shall be submitted to the City for a one year period. 5. Surface water management fee in the an amount required by the City at the time of final plat be paid prior to recording the plat with Sherburne County. 6. All wetlands on the site be delineated and a wetland joint notification form be completed and returned to the City. 7. An NPEDS Permit be obtained for the grading associated with this development. 8. Park dedication fee in the amount required by the City at the time of final plat be paid prior to releasing the plat for recording. 9. A sealcoat fee, in the amount to be determined by the City Engineer, to be paid prior to releasing the plat for recording. 10. Street lights shall be included as part of the improvements for the subdivision per Elk River Utilities recommendation. • 11. A grading/erosion control plan and development plan be submitted and approved by the City Engineer prior to the issuance of building permits. 12. All grading will need to be certified prior to issuance of building permits. 13. Soil borings will have to be performed and approved prior to final plat verifying septic locations. 14. The plat will have to be reviewed and the location of the county ditches verified by the County Ditch Inspector prior to final plat. 15. A clearing and tree protection plan shall be provided prior to final plat. 16. The developer is required to upgrade Pascal Street from 200th Avenue to the northwest corner of his plat and to provide documentation that the Pascal Street easement over this stretch of road does exist and is in favor of the City 17. The current intersection at the northwest corner of the plat is not perpendicular. Pascal Street should be extended further to the south III in order to make the intersection perpendicular and provide documentation that they have an easement from the property to the west to accomplish this. • February 17, 1997 File: 230-349-11 CONSULTING ENGINEERS 1326 Energy Park Drive Mr. Steve Ach St.Paul,MN 55108 City Planner 612-644.4389 City of Elk River 1-800-888-2923 13065 Orono Parkway Fax:612-644-9446 P.O. Box 490 Elk River, MN 55330 RE: OAKWOOD HILLS PRELIMINARY PLAT Dear Mr. Ach: As requested, we have reviewed the Preliminary Plat for the Oakwood Hills development. Based on our review, comments received at the staff review meeting, and a number of meetings with the Developer and his engineer, we would offer the following comments: CIVIL ENGINEERING: ENVIRONMENTAL 1. The Preliminary Plat that we reviewed was prepared by Passe Engineering, Inc., and NICIPAL was dated November 27, 1996. io NNING SOLID WASTE 2. This plat receives access from the northwest corner through the Hobbit Hills STRUCTURAL Addition. The Developer will be required to upgrade Pascal Street NW from 200th SURVEYING Avenue NW to the northwest corner of his plat. The Developer should also be TRAFFIC required to provide documentation that the Pascal Street easement over this stretch TRANSPORTATION of road does exist and is in favor of the City. ELECTRICAL/MECHANICAL 3. The current intersection at the northwest corner of the plat is not perpendicular, but ENGINEERING: skewed slightly. Pascal Street should be extended further to the south in order to HVAC make this intersection perpendicular. This will likely require the Developer to POWER DISTRIBUTION acquire additional easement from the property to the west. SCADA SYSTEM CONTROLS 4. The wetlands have all been delineated and are shown on the Preliminary Plat. It appears that the only wetland that is over one acre in size falls within Lot 1. This lot needs to be large enough that, after subtracting the wetland area, it still meets the minimum lot size of 2' acres. It appears the only wetland mitigation required will be near the northwest corner of the plat for the road construction. A mitigation plan will need to be prepared and approved. 5. It is very difficult to read the contours of the Grading Plan at this scale. We would suggest that the Developer be required to submit the Grading Plan at a 50 scale so FFicEs IN: that the proposed versus existing contours can be easily read. NNEAPOLIS PRIOR LAKE 6. It appears that legs of County Ditch 28 run through this site. These should be ST.PAUL identified and shown on the Preliminary Plat, as well as protected with drainage and WASECA 230/349-1413.feb An Equal Opportunity Employer • Mr. Steve Ach February 17, 1997 Page Two utility easements. It appears from records at City Hall that one part of Ditch 28 may cut through the north sections of Lots 1 and 2. This may affect the buildability of these two lots. 7. The Preliminary Grading Plan shows sedimentation ponds. However, at this point in time, no detailed storm drainage calculations have been provided. It will be necessary for the Developer to submit storm drainage calculations. These calculations should show adequate sedimentation capacity and no net increase in the rate of runoff leaving the site. 8. The drainage and utility easements around the perimeter of the lot should be expanded to 10 feet where the adjacent property has not already given a 5-foot easement. This is due to the fact that the surrounding property may stay unplatted for many years and a 5-foot easement is virtually unusable. 9. The Developer has supplied a soils report indicating that conventional on-site septic systems should be buildable on this property. There is some question, however, • regarding the location of the primary and secondary septic system locations. For instance, Lot 4 shows the primary on one side of a wetland with the secondary on the opposite side. It is not reasonable to believe that a homeowner would build around a large wetland in this case. We would suggest that the Preliminary Plat be revised to more accurately reflect the primary and secondary location, taking into account well locations where these will affect the septic system location. 10. We have discussed with the Developer's engineer the need to show at the southwest corner of the plat a little more topo on the property to the west to indicate that this is a workable location for a future extension of the road. They indicated that they will provide this information. 11. Easements need to be provided on the Preliminary Plat, protecting all of the wetlands identified. 12. The site is essentially completely wooded. The revised Grading Plan at the 50-scale should indicate the amount of trees to be removed so the road, storm drainage ponds, and house pads construction can proceed. 13. It should be noted that this development will essentially be a long cul-de-sac until the 40 acres to the west develop. At that time, there will be an opportunity to connect this plat with the plat of Weatherwood. Until such time as the road is extended, • there will need to be a temporary turnaround at the end of the road. This can be accomplished by providing temporary easements on Lots 5 and 9, which can be vacated in the future. 230/349-1413.feb Mr. Steve Ach • February 17, 1997 Page Three 14. The typical street section shown on the Preliminary Plat accurately reflects the City standard. The soils report provided by the Developer indicates that the thickness of this section should be adequate for the native soils on the site. If you have any questions regarding these comments, please call. Sincerely, MSA, CONSULTING ENGINEERS Terry J. aurer, P.E. TJM:tw • • 230/349-1413.feb IOWNER/DEVELOPER: GOOD VALUE HOMES, INC. I I 9445 EAST RIVER ROAD \ I SUITE 201 I COON RAPIDS, MN 554 ,,, \ I PHONE: 755-9793 /, <" '4' ) 1 r \Y\,) 1 ` \`I 1 Y. 6 1 \ 1 (r I--) `\ I — I r \`�\ I . I Y. • 1 .. 1 1 1 -__ WETLAND FILL 4251 SP FT 1 ;4- 9492teaLsk‘ \ 95) 1 ,•, F- SYPE 3 1 i:� 94e, Elt-AN9 1 b41.4 SILT a L L :.-,..4.7.tnlir-- _ \ '''s --J ,1„.. ' �r '1,8 ,..,.. . Al oi.,ip 11,, .. ." :4‘111,I S I W 94::k - 77..._ I.Z;1%.„!---.44‘,6.1.:7412,, * Allgair 11/1:4400.44."I'% Ritailar ;mem• ..••./0.41,..t VIRE;EBN I¢Hil210E:1El4T ��•456- `I 4111114147 - OP i 1 V ���� 4,� 6�Zr� 07 3 . METAL OR V® ' n FABRIC TVP TL �� /Iii Q��•�'Qj� ►e..._ ��/ . POST OR STARE Or (, FABRIC AMEMORAGC "' >1 ' '. Per. `;,� \\�,� DIRECTION OF. TROCH DACKFILL V[TH , 7 I i,� '\\ .00104 w.W FLOV_ TAMPED NATURAL SOIL , 4 1 �: 949 • 1.:.i,,,,,003,1, %fir s ,im ileib,, MOTE.DVEMB91c UPON R:OiI(ARATIQ ATTACH rABRx'To vTRE 1csM WITH i _a_ i I�l �t�0.4.- .t)p�}�"�41)k 16 ROCS.STEEL POSTS VITH TIE VOTES OR V®PIT VITN STAPLES. 945.6 '-EPS �� !-' /' �', SILT ENCE ����_ -���r���9�4.3 '�A9 ti �i' �� TYPICAL INSTALLATION FOR SILT FENCE I 109,603 SF-944.9:2Y 1� J7 s..0 O' 1. .;,11111,111,1 , % ' 942.6 4 - 951.5-\ .: . ,‘„, (--- 954.8 �' I . 1 1r IIlVOO1t DM -..:.:,...1.,..,--;,.„,...„',1:,,,:.:. .771:.1" ._,. . 9912 / , \ ' .., ' 0� ;/I; ''. 1 r 't[ i 9 SF %i., / Y ITTUM134RIS VEAR CORSE M DUT 2595 Awl ;',/94351.1110=11 - :/0 2Y IIR)@/15 DATE CO RSE,44,ICI 2331 • TP.R '�f: V CUSS V 10m(CRImCD awtRr SILT ,...„ ,., tig; v' no:x WE.M,DOT 91301 1410410 mew MYA.alEf Illik._41: jail. 111 IOIT3 ri �A T LNLL rye[ DETVEEA DITUfDQA LIFT& • a�wMw��_i_-V.-7,...,6,741111:1111.1•1114-;174-11744---; � {p�� ALIIl nE BAg AR 6 l/F DITNmaa cuO nwl DE 1 S1i� .IRk.11 �_`�% —4--`; -06N TACKER AMOR TO PLACEIOff. ++-- ]���w ~�y I!I�1�_ �►`B.'1,-V,;: !:.:-.=..""......16.7''...7.79-77.-- ::::. ib.`. �I/4 `-- ,ire I�\�._ MTV THE STREET MR/IC ELDRED PRIM TO ALAMO ,'era' �� - --�. /�j►�-►11�;6R '�'+Bi -3 Tx TAbt CMT. +t z �-- Il _ -` '��-: Ntp 3 7 997 F^-�".B•iy.� _�.IQ�� rB��TYPICAL STREET SECTION97A �'I 4 ��NOT TO SCALE /// p evil, st- 0,- litti.444 � I 951.6 ` I,• 41G ' r, i SITE DATA ���: v I , 960 I �.�;� s,9 `�`� n 10:9 3 SF EXISTING ZONING R1—a " " 1 • R 946.9 I C-f ►' PROPOSED ZONING R1—a > ____ 951.3 I P! TOTAL AREA 40.07 ACRES 9382 NUMBER OF LOTS 14 I 950.2I 11� DENSITY 0.35 UNITS / ACRE II " —' 289.13 I 307.90 I I / 370,5 I SURVEYOR/ENGINEER: m g§ , PASSE ENGINEERING, INC, 9445 EAST RIVER ROAD ; i SUITE 203 3 33 COON RAPIDS, MN 55433 o to PHONE! 755-6240 o F 1 4y u 2 �ia a a: \ I 0 60 76 100 160 200 0 j SCALE IN PSCC r L. T V m (5 � c 1 I 91132 ��� I W 946,7 i iI I M [� SCO 944.7 1 N 9444 I (41 Cil 1' /4pkr/ .0. L 1 4 i;. Ii — ------------ 1 I 1 , O I I I ~ " W N c..),-... ..)100,, ttoopi 0 o co 919,6 —_—'� , (I) w w x — \ 1 j riffs kiir ------------ 1 I :Ik.t.1 klialti- ?Milk V 1 .1 gyp. _ +� 914,2 I 11�:1 iti 0,5tigi ""--- '''' 14",1141 ,,.'S1y- 9TLA4 D ) TYPE 3 \ I `\`_,k._1 I1oj;,^.Ir -- 9 0,383 �0\JO-94,z 949.5 < 11 '` 1 Q 0,it 1 - .1\ t\1 _,,1 1 E) L0--1,--JJ1 a>c 7��4 1 ' �v N_ I� 1 1 _1 3 ,,,z.([ ; \kv 09, 22 V I Q O'�d11� 949.1 ,i fie !,., 1.' 1 I r � C� .''llo, i7.0 J I .itii,!�i�I'� I s i kl�,(j� � ``� I 4 ?sou'�j�� 1 I ------- Yap` 1 1 1 r-- °s if __ \�`iAl.'��� el*litA4\ 1 '441 I 014 1 !‘,41441161,zi I r--\tireem7• . - ' .n 9491 I i ...•���`� 951A 1 { zo1n1 - F pl i'1'A .1 .f. OI J "" Mal if °` LOCATION v�R C 18114 193RD IBTND City of Elk River 13065 Orono Parkway • P.O. Box 490 Elk River, MN 55330 FT. LOCATION MAP CASE: p I — �' X- 1� a r- i 7 4 dH 1� zaen fn8 zaeni t 1. 1 � r zan4 I I � /�•. LOCATION � I i rnon�4 ati �