Oxford Row Townhouses 6800 W 80 th Street Overland Park, Kansas CFS Project # Preliminary Stormwater Management Study.

Transcription

1 Oxford Row ownhouses 6800 W 80 th treet Overland Park, Kansas CF Project #8-528 Preliminary tormwater Management tudy December 3, 208 Prepared for: NPJ Architects Attn: Brad Hus 355 W 75 th treet, uite 20 Prairie Village, Kansas Applicant ubmittal Prepared by: CF Engineers 42 E 04 th treet, uite 00 Kansas City, MO 643 (86) Oxford Row ownhouses, 6800 W 80 th treet, Overland Park, Kansas Preliminary tormwater Management tudy pg

2 ABLE OF CONEN: Introduction pg 3 Identification of Downstream Drainage Issues pg 4 Preliminary On-ite Drainage ystem pg 4 torm ewer Improvements pg 4 Overflow ystem Path pg 4 Drainage Computations pg 5 Flood Control Detention pg 5 Flood Detention Control Requirements pg 5 tream Corridors pg 5 Corps of Engineers Requirements pg 6 FEMA/Kansas Department of Water Resources Requirements pg 6 tormwater reatment Requirements pg 6 Conclusions pg 7 Recommendations pg 7 APPENDIX: I - Preliminary Engineering Plans C.00-Overall ite Plan C2.00-itePlan C3.00-Grading Plan II Exhibits & Record Plans tormwater Drainage Map, Pre-Development Conditions tormwater Drainage Map, Post-Development Conditions FEMA FIRM Map (2009C0038G) NRC oil Map and Hydrologic Classification Data III tormwater Drainage Analysis (Huff 2 nd Quartile 5 & 00-Year torms) PondPack Model chematic Map and Hydrologic Model Output Open Channel Depth Analysis (Overflow Path Around East and West Portion of ite) IV - Water Quality BMP Analysis Calculations (202 MARC BMP Manual) Worksheet A: Required Level of ervice Developed ite Worksheet 2: Develop Mitigation Packages hat Meet Required L Pervious Pavement Worksheets (, 2 and 3 Pervious Pavement Blankets) Applicant ubmittal Oxford Row ownhouses, 6800 W 80 th treet, Overland Park, Kansas Preliminary tormwater Management tudy pg 2

3 Introduction: he proposed Oxford Row ownhouses multi-family development, located at 6800 W 80 th treet in Overland Park, Kansas, would be a multi-family residential development consisting of 8 condominium units on a.45 acre site. he project would include eighteen buildings of multi-family condominium housing units arranged on the east and west sides of a single private drive extending north from W 80 th treet. Each housing unit would have enclosed garages. he project is located in an established residential area with fully-developed single-family residential homes to the north, south and east. here are existing apartment buildings located to the west. he site slopes downwards to the north, and there are no existing storm sewer lines or inlets on the site. Runoff is ultimately collected in the existing enclosed storm sewer system along W 79 th treet. tormwater quality improvements for the project would include pervious pavement blankets, in accordance with the MARC/APWA Best Management Practices (BMP) Manual. Applicant ubmittal Oxford Row ownhouses Vicinity Map, 6800 W 80 th treet, Overland Park, Kansas Oxford Row ownhouses, 6800 W 80 th treet, Overland Park, Kansas Preliminary tormwater Management tudy pg 3

4 Identification of Downstream Drainage Issues: he proposed development area is located within a combination of large-lot residential houses and a large open/undeveloped area in the interior of the city block west of Glenwood treet between 79 th and 80 th treets. Runoff from the proposed Oxford Row ownhouses site drains overland to the north where it flows into an existing open swale that carries the drainage to the east into the existing enclosed storm sewer system on Glenwood treet. he enclosed storm sewer continues draining to the east to discharge into the upstream limits of Brush Creek located off of the northeast corner of the intersection of 79 th & Lamar. he FEMA FIRM map panel 2009C0038G, dated August 3, 2009, does not show any limits of 00-year flooding anywhere near the proposed site. he downstream storm sewer was presumably constructed in the 950's/60's. No known downstream flooding issues were brought to the owner's attention at the project coordination meetings with City Planning. Preliminary On-ite Drainage ystem: torm ewer Improvements: ince there are no enclosed storm sewer inlets or connection points on the site or located near the edge of property, the proposed storm sewer system was designed to surface drain to the the north and flow to the existing open drainage swale flowing to the east in the large open area inside the city block between 79 th and 80 th treets. Drainage drains eastwards in the existing swale to an area inlet located off of the southwest corner of 79th & Glenwood. Applicant ubmittal Drainage from the proposed site would drain down the proposed driveway and discharge over a riprap blanket on the north side of the development. Runoff from the roofs of the proposed townhouses would be collected and piped into pervious pavement blankets located in the driveways of each unit. he pervious pavement would retain the runoff volume from the.37 BMP design storm, and also retain a portion of the runoff from larger storm events to mitigate increases in postdevelopment stormwater runoff rates for the design storm events required by the City's design code. Overflow ystem Path: Depression swales would be graded in the rear-yard areas behind the townhouses on the east and west sides of the site to flow northwards. ince the site and neighboring properties to the east and west all sloped directly to the north, there was a small 0.4 acre wedge of off-site drainage flowing onto the eastern Oxford Row ownhouses, 6800 W 80 th treet, Overland Park, Kansas Preliminary tormwater Management tudy pg 4

5 side of the site. he overflow swales would convey drainage from the rear-yard lawns with maximum drainage areas of approximately 0.5 to 0.20 acres. Drainage Computations: he rear-yard drainage swales would convey approximately.4 cfs of peak drainage from a 00-year storm event. A 2' flat-bottomed ditch with grass-lining at a 2% would be able to convey that flow at a depth of 0.08'. he gutter capacity for the estimated 2.7 cfs that would flow along each side of the proposed center service drive during a 00-year storm event would be conveyed at a depth of 0.0' at a 2% slope. Flood Control Detention: tormwater Detention: tormwater detention would be provided with pervious pavement blankets located in the driveways at each of the townhouses. he pervious pavement blankets were sized to hold the.37 rainfall depth from the townhouse rooftops and contributing side-yard areas. hey would act as retention basins by slowly releasing drainage either through a small 2 outlet drain line or by water percolating into the underlying soil. CF created a digital drainage model of the proposed site where the post-development runoff was calculated using the Huff econd Quartile Rainfall Distribution for the 5 and 00-year storms. he detained portion of the runoff was routed into the pervious pavement blankets where it would fill the basins before overflowing and draining off of the site, overland, as the existing site conditions presently drain. Flood Control Detention Requirements: Applicant ubmittal tormwater Detention: tormwater detention would be provided so that the peak runoff rates for the post-development 5 and 00-year design storms would not exceed the pre-development levels. Hydrographs were based on the Huff econd Quartile Rainfall Distributions, as required by the City. tream Corridors: here are no existing natural stream corridors on the proposed Oxford Row ownhouses Multi-Family development. he existing enclosed storm sewer system draining the site extends to the north and east to ultimately discharge into an open channel of Brush Creek located approximately 800' downstream of the site. Oxford Row ownhouses, 6800 W 80 th treet, Overland Park, Kansas Preliminary tormwater Management tudy pg 5

6 Corps of Engineers Requirements: he August 3, 2009 FEMA FIRM Map Panel 38 of 6 (Map Number 2009C0098G), depicting the major waterways in the vicinity indicates that there are no limits of 00-year flooding extending upon the proposed Oxford Row ownhouses Multi-Family development. he open-channel upstream limits of Brush Creek are located to the northeast of the nearby intersection of 79 th & Lamar. 00-year flooding does not appear to extend to the proposed site. here appear to be no existing wetlands on the property or in the surrounding areas. he proposed development has no apparent 00-year flooding as designated by the FEMA map. he change between pre and post-development runoff from the.454 acre site would have negligible impact on the waters of the U within Brush Creek, and a 404 permit would not be necessary. FEMA/Kansas Department of Water Resources Requirements: here are no natural creeks or open drainage-ways that would be filled or altered by the proposed development, so there appears to be no need for a CLOMR from FEMA or a permit from the Kansas Department of Water Resources for waterway fill or alteration permit. As mention earlier in the report, there do not appear to be any existing wetlands areas that would require preservation. tormwater reatment Requirements: Water Quality BMP reatment: BMP treatment of the stormwater would be provided with pervious pavement located in the driveways to each of the proposed townhouse units. he NRC soil survey map of the site indicated that it was covered exclusively with hydrologic ype-c soil (harpsburg-urban Land Complex, 4 to 6 percent slopes/ype-c soil). ince the existing conditions site was approximately 30% impervious, BMP Worksheet A from the 202 BMP manual, as modified by the City, was used to determine the minimum required value rating based on the difference between the pre and post-development impervious surface area. he minimum required total value rating was calculated based on a level-of-service of L = 7.0 multiplied by the increased difference in impervious area of 0.37 acres to yield a minimum required value rating of VR = Applicant ubmittal o mitigate the required BMP treatment, approximately 0.78 acres of the site would be treated with pervious pavement, with the remaining acres left untreated. he Oxford Row ownhouses, 6800 W 80 th treet, Overland Park, Kansas Preliminary tormwater Management tudy pg 6

7 proposed site areas to be treated by the pervious pavement would include the townhouse roof tops and the side-yard areas that would grade and drain onto the blankets. he untreated portion of the site would include the proposed 28' wide service drive extending through the center of the project along with the rear-yard areas behind the townhouse units. Each of the townhouse driveways was analyzed to determine the minimum required depth of under-bed aggregate to to hold the minimum required water quality volume for the contributing drainage area. Based on the variations in contributing drainage areas to the different pervious pavement blankets, the minimum depth of aggregate ranged from to 4. Each blanket would be built with a 2 outlet pipe to allow for slow-release and emptying. he infiltration rate was also assumed to be a minimal 0.5 in/hr, which would allow each blanket to drain into the underlying soil over a 22 to 28 hour period. Conclusions: his Preliminary tormwater Management tudy for the proposed Oxford Row ownhouses Multi-Family development at 6800 W 80 th treet in Overland Park, Kansas, demonstrates that the site would comply with the City's requirements for stormwater drainage and water quality treatment. he project would provide stormwater detention by utilizing the proposed pervious pavement blankets in the townhouse driveways. he pervious pavement would serve dual-use as a BMP water quality treatment mitigation feature, and would provide stormwater detention for the heavier rainfall events required by the City. he drainage calculations show that the peak outflow from the post-development site would decrease the peak runoff from 8.3 cfs to 7.50 cfs during a 00-year storm. BMP treatment would be provided with pervious pavement in accordance with the design criteria in the 202 MARC/APWA BMP Manual. Recommendations: Applicant ubmittal Based on the preliminary drainage calculations that show that the proposed Oxford Row ownhouses would not cause a post-development increase in stormwater runoff over the levels expected under the existing conditions, the City should approve the Preliminary tormwater Management tudy so that the project can proceed with the preparation of a Final tormwater Management tudy and, ultimately, approval for construction. Oxford Row ownhouses, 6800 W 80 th treet, Overland Park, Kansas Preliminary tormwater Management tudy pg 7

8 GREENFIELD, AMMY 8023 BROADMOOR LN. OVERLAND PARK, K ZONING: DFD LAND UE: INGLE FAMI WARE, MICHAEL & MICHELL, UAN 8020 BARKLEY. OVERLAND PARK, K LAND UE: INGLE FAMI CAC64, LLC 8026 BARKLEY. OVERLAND PARK, K LAND UE: INGLE FAMI JAHNKE, ARA ANNE 6700 W 80H OVERLAND PARK, K LAND UE: INGLE FAMI ROINGHAU, ELMER A. CO-EE ROINGHAU, DOLORE N. CO-E 8025 BARKLEY. OVERLAND PARK, K LAND UE: INGLE FAMI A N A A N A AVE. AVE. Manhole Elevation. RD ALL OF LO 2 AND ALL OF LO 3, EXCEP HE WE 20 FEE OF HE NORH 5 FEE HEREOF, KIRKBRIDE PLACE, A UBDIVIION IN HE CIY OF OVERLAND PARK, JOHNON COUNY, KANA. IE DEVELOPMEN UMMARY ABLE: EXIING ZONING: R- PROPOED ZONING: RP-4 LAND AREA:.454 ACRE OR 63,345.2 QUARE FEE MORE OR LE LAND UE: EXIING: CHILD CARE/LEARNING CENER PROPOED: OWNHOME 8 UNI PROPOED 2.38 UNI/ACRE PARKING REQUIREMEN: REQUIRED: 2 OFF-REE PACE PER UNI = 36 OFF-REE PACE PROVIDED: 52 PACE INCLUDING 26 GARAGE PACE BUILDING HEIGH: D RAWINGR ELEAELOG MAXIMUM BUILDING HEIGH: 2-½-ORY/35'-0" PROPOED BUILDING HEIGH: 2-ORY/29'-5-5/8" DEIGNED OPEN PACE: PRELIM. DEV. PLAN DEIGNED OPEN PACE A HOWN I 5,084 QUARE FEE (8%) OF HE IE. PEDERIAN REALM ANDARD: HE PROPOED PRIVAE ROAD I BEINGCONRUCED WIH PACE ALLOWANCE FOR GLENW OO D REE FUURE R/W AND BUILDING EBACK. HE PROPOED ROAD HA A PROPOED 50' KILLION, DOUGLA C CO-RUEE KILLION, UAN I CO-RUEE 803 GLENWOOD. OVERLAND PARK, K LAND UE: INGLE FAMI EAEMEN WIH A 25' WIDE REE CENERED IN HE EAEMEN. OVERALL PERVIOU PAVING INCENIVE: PREVIOU PAVEMEN HALL BE PROVIDED FOR ALL OFF-REE PARKING AND DRIVEWAY NO IE HOWN IN HE EAEMEN. PLAN AREA OF PERVIOU PAVEMEN = 4,729.0.F. INGEROL, ROBER W. & MICHELLE M. 809 GLENWOOD. OVERLAND PARK, K LAND UE: INGLE FAMI OWNER: ARCHIEC: COMMUNIY LIVING OPPORUNIIE, INC. NPJ ARCHIEC, P.A. 628 W. 79H REE 355 W. 75H. UIE 20 LENEXA, K 6624 PRAIRIE VILLAGE, K DEVELOPER: REVIION ENGINEER/URVEYOR/PLANNER: KYLINE PROPERIE CF ENGINEER, P.A W. 43RD AVENUE 42 E. 04H REE, UIE 00 KANA CIY KANA KANA CIY, MO 643 DAE 2/03/208 JOBNO. REQUEED DEVIAION HE DEVELOPER REQUE HE FOLLOWING DEVIAION O HE CIY OF OVERLAND PARK' DRAWNBY: MUNICIPAL CODE: CEE / BNH HE MAXIMUM ALLOWED DENIY ALLOWED BE RAIED FROM 7.26 UNI/ACRE O 2.38 UNI/ACRE PRELIMINARY DEVELOPMEN P PRELIMINARY D EVELOPMEN PLAN LAN HEE NO. C.00 A PRAI RI E VI LLAG E,K 20 COPYRI GH 208 NPJARCH. COM LEGAL DECRIPION: ALLOWED 7.26 UNI/ACRE W ANCU RA,DAN N. & EREA M. 667 W.80H. K OVERLAND PARK, NG : RZO NI NG LE FAM I LAND UE:I F VICINIY MAP: 8,53.72 QUARE FEE K K. G,M ERLE E.& M AR CKEI LI H W K OVERLAND PARK, NG : RZO NI NG LE FAM I LAND UE:I WROCKLAGE, PA 8024 GLENWOOD. OVERLAND PARK, K LAND UE: INGLE FAMI 355 W. 75H.,UI E PROJEC LOCAION IE DENIY: HARRI, MICHEL E. & CARON L. 806 GLENWOOD. OVERLAND PARK, K LAND UE: INGLE FAMI P E F OAL DWELLING UNI: PELON, JONAHAN DAVID & HEAHER BRIANY 800 GLENWOOD. OVERLAND PARK, K LAND UE: INGLE FAMI PA I NERI OR LUCA W. WILLIAM - ENGINEER K PE# D R 3 8 OAL BUILDING FLOOR AREA: E E R H 0 8 A R C H IEC NALL RD. REED RD. AVE. LAM AR Manhole Elevation IPF-/2"BC KW L49 Manhole Elevation Manhole Elevation Manhole Elevation NALL RD.. R D. H 8 7 LAM AR E F M ECALF K AR P. R E H 7 7 IE FLOOR AREA RAIO: WAEK, CHARLE KENNEH 805 BARKLEY. OVERLAND PARK, K LAND UE: INGLE FAMI PEREIRA, RANDI 809 BARKLEY. OVERLAND PARK, K LAND UE: INGLE FAMI. H EE ELD,RO DNEY B.RU M AYFI E E U ELD,M ARY K.R M AYFI 6707 W 80H OVERLAND PARK,K NG : RZO NI FAM I LE NG I E: LAND U A L. HU ON,REBECC H W K OVERLAND PARK, NG : RZO NI NG LE FAM I LAND UE:I GIBON, MARK 670 W 80H OVERLAND PARK, K LAND UE: INGLE FAMI HARGADINE, BECKY UE & MARK BRYAN 666 W 80H OVERLAND PARK, K LAND UE: INGLE FAMI AND L R OVE OVERLAND PARK,KANA GREEN, JEFF E GLENWOOD. OVERLAND PARK, K LAND UE: INGLE FAMI. R E H W.80H REE JL RENAL LLC 665 W. 79H ER. OVERLAND PARK, K LAND UE: INGLE FAMI. H 6 7 OXFORD ROW PF,EREA K,M ARK & ZI FI H 0 8 W 0 670,K RK PA ND LA ER OV NG : RZO NI NG LE FAM I LAND UE:I NDA C. URRELL,ROBER J.& LI 672 W 80H OVERLAND PARK,K NG: RZONI FAM I E NGL I E: LAND U ERRY,ELLEN L. 680 W 80H K OVERLAND PARK, R: NG NI ZO NG LE FAM I LAND UE:I EXCELLEN RENAL OF KANA LLC 806 BARKLEY. OVERLAND PARK, K LAND UE: INGLE FAMI BARKLEY REE KENNEDY, HARLEY. & NICOLE C. 807 BROADMOOR LN. OVERLAND PARK, K ZONING: DFD LAND UE: INGLE FAMI ABEH R. JOH NRU D,ELI 6809 W 80H K OVERLAND PARK, R: NG ZO NI NG LE FAM I LAND UE:I CZ,M ARY F EW I PANKI 689 W 80H K OVERLAND PARK, R: NG NI ZO NG LE FAM I LAND UE:I LAND E,JAM E R. ARA & CARROLL,BARB H W K OVERLAND PARK, NG : RZO NI NG LE FAM I LAND UE:I BROADM OO R REE A YEOMAN, RONALD N. & HELEN N. 80 BROADMOOR LN. OVERLAND PARK, K ZONING: DFD LAND UE: INGLE FAMI JONOUCHEK, MICHAEL W. & CONNIE L. 800 BARKLEY. OVERLAND PARK, K LAND UE: INGLE FAMI ti 20 9 A NEW M ULI FAM I DEVELOPM EN FOR: NC. E,I LLAG E REAL EA H VI DANI W.79H K OVERLAND PARK, D DF : NG ZO NI EN LAND UE:APARM p p E E R H 0 8 MA OVERLAND PARK LLC & A80 PE LLC 800 MECALF AVE. OVERLAND PARK, K ZONING: DFD LAND UE: APARMEN a c il W 9 O 0. V 0 80 E W L Z RL.8 H A O A 0 N D NI ND H R U NG P EE E : AR R, E L : D K O F, E L F D K C F IC E 6900 W. 80H REE, LLC 6900 W. 80H REE OVERLAND PARK, K ZONING: DFD LAND UE: OFFICE FEE LIMI OF DEVELOPMEN m b u JANE, JOHN GLENWOOD. OVERLAND PARK, K LAND UE: INGLE FAMI N PJ LAFARGUE, ANYA D. 667 W. 79H. OVERLAND PARK, K LAND UE: INGLE FAMI KIDD, DONOVAN L. 666 W. 79H ER. OVERLAND PARK, K LAND UE: INGLE FAMI t n 00' l a t LEGEND: CE A R R E H 0 8 MADMAR, INC MECALF AVE. OVERLAND PARK, K ZONING: DFD LAND UE: CAR DEALERHIP 50' D R. CLOYER, EAN EDWIN 670 W. 79H. OVERLAND PARK, K LAND UE: INGLE FAMI PACH, PARICIA A. & INGALA, ELIZABEH M GLENWOOD. OVERLAND PARK, K LAND UE: INGLE FAMI NEHL, DONNE E. 794 GLENWOOD. OVERLAND PARK, K LAND UE: INGLE FAMI 0 CALE: " = 50' GLENW OO D REE CK PLUM ER,PARI AH I AR M & DO W NEY,. H W OVERLAND PARK,K NG : RZO NI FAM I LE NG I E: U ND LA NG,BREN R. CLENDENI 677 W.79H. OVERLAND PARK,K NG : RZO NI FAM I LE NG I E: LAND U & ANDRA R. LU CA RO NALD G. 680 W.79H. OVERLAND PARK,K NG : RZO NI FAM I LE NG LAND UE:I A E. NI RG I A A.A.& AG ER,VI CI N,PARI KI DI 68 W.79H. K OVERLAND PARK, NG : RZO NI NG LE FAM I LAND UE:I 50' CK & BRENDA HO FF,PARI 79H.. W 685 PARK,K ND LA OVER NG : RZO NI FAM I LE NG I E: U ND LA DANIH VILLAGE REAL EAE, INC W. 79H. OVERLAND PARK, K ZONING: DFD LAND UE: APARMEN LANDCAPE KANA CERIFICAE OF AUHORIY NUMBER W. 80H REE OVERLAND PARK, K MADMAR, INC W. 79H. OVERLAND PARK, K ZONING: DFD LAND UE: CAR DEALERHIP ENERGY ERVI CE PRELIMINARY DEVELOPMEN & REZONING PLAN ARCHI ECURE ARCHI ECURE OXFORD ROW

9 BARK REE OXFORD ROW PRELIMINARY DEVELOPMEN & REZONING PLAN 6800 W. 80H REE OVERLAND PARK, K N86 37'42"E 20.5' 0' /B N02 28'56"W 9.4' N02 9'39"W 5.26' 5.8' 2.34' 0'..E. 0' /B 20' 0' /B OPEN PACE RAC LINE 4.3' 4.3' 26.6' C N87 49'02" E 94.33' C2 RAH RUCK URNAROUND 50' ACCE EAEMEN 25' B-B 50' ACCE EAEMEN 25' B-B 0' /B 87 45'23"W 24.09' 4.9'.7' 02 2'08"E ' 5.24' 20' 0 20' 40' CALE: " = 20' LEGEND: PROPOED CONCREE PAVEMEN PROPOED APHAL PAVEMEN PROPOED PERVIOU CONCREE PAVEMEN PROPOED GRA PAVER 0' /B PRIVAE REE CURVE DAA: C C2 P.I. ta R = 84.00' = 7.33' L = 34.8' E =.77' P.I. ta Applicant ubmittal R = 56.00' = 32.8' L = 63.48' E = 3.29' KANA CERIFICAE OF AUHORIY NUMBER FEE ARCHIECURE A NEW MULIFAMI DEVELOPMEN FOR: LANDCAPE ARCHIECURE INERIOR ENERGY ERVICE NPJ LUCA W. WILLIAM - ENGINEER K PE# OXFORD ROW P ARCHIEC IE PLAN PA F W. 80H REE NPJARCH.COM 355 W. 75H., UIE DRAWING RELEAE LOG PRELIM. DEV. PLAN COPYRIGH OVERLAND PARK, KANA PRAIRIE VILLAGE, K 'R 28'R 80H REE REVIION 80H REE DAE 2/03/208 JOB NO DRAWN BY: PRELIMINARY DEVELOPMEN P PRELIMINARY DEVELOPMEN PLAN LAN CEE / BNH HEE NO. C2.00 A.00

10 OXFORD ROW PRELIMINARY DEVELOPMEN & REZONING PLAN 6800 W. 80H REE OVERLAND PARK, K Manhole Elevation = In 03 () 8" = » In (E) 8" = Out (N) 8" = 032 Manhole Elevation In (W) 8" = = Out (N) 8" = PROPOED ' /B REAINING WALL 027 Manhole Elevation = Manhole Elevation = In (N) 8" = In (W) 8" =» In () 8" = Out (N) 8" =» In (W) 8" = Out (E) 8" = F.F.E.= F.F.E.=03.40 F.F.E.= F.F.E.= F.F.E.= F.F.E.= Lot 3 F.F.E.= F.F.E.=.00 F.F.E.= Manhole Elevation Out 03 (W) 037 F.F.E.= F.F.E.= " 030 Lot 2 F.F.E.= F.F.E.= F.F.E.= = = F.F.E.= F.F.E.= F.F.E.= F.F.E.= PROPOED REAINING WALL LEGEND: 20' 0 20' 40' CALE: " = 20' 030 PROPOED MAJOR CONOUR LINE 029 PROPOED MINOR CONOUR LINE 030 EXIING MAJOR CONOUR LINE 029 EXIING MINOR CONOUR LINE 039 Applicant ubmittal W W W Lot KANA CERIFICAE OF AUHORIY NUMBER FEE ARCHIECURE A NEW MULIFAMI DEVELOPMEN FOR: LANDCAPE ARCHIECURE INERIOR ENERGY ERVICE NPJ LUCA W. WILLIAM - ENGINEER K PE# OXFORD ROW P GRADING PLAN PA ARCHIEC F W. 80H REE NPJARCH.COM 355 W. 75H., UIE DRAWING RELEAE LOG PRELIM. DEV. PLAN COPYRIGH OVERLAND PARK, KANA PRAIRIE VILLAGE, K W H REE BARK REE 80H REE REVIION W DAE 2/03/208 JOB NO PRELIMINARY DEVELOPMEN P PRELIMINARY DEVELOPMEN PLAN LAN DRAWN BY: CEE / BNH HEE NO. C3.00 A.00

11 OXFORD ROW PRELIMINARY DEVELOPMEN & REZONING PLAN 6800 W. 80H REE OVERLAND PARK, K Lot W G W Lot LEGEND: 20' 0 20' 40' CALE: " = 20' 030 PROPOED MAJOR CONOUR LINE 029 PROPOED MINOR CONOUR LINE 030 EXIING MAJOR CONOUR LINE 029 EXIING MINOR CONOUR LINE 039 Applicant ubmittal G W Lot KANA CERIFICAE OF AUHORIY NUMBER FEE ARCHIECURE A NEW MULIFAMI DEVELOPMEN FOR: LANDCAPE ARCHIECURE INERIOR ENERGY ERVICE NPJ LUCA W. WILLIAM - ENGINEER K PE# OXFORD ROW P PRELIMINARY DRAINAGE AREA MAP PA ARCHIEC F W. 80H REE NPJARCH.COM 355 W. 75H., UIE DRAWING RELEAE LOG PRELIM. DEV. PLAN COPYRIGH OVERLAND PARK, KANA PRAIRIE VILLAGE, K W H REE BARK REE 80H REE REVIION W DAE 2/03/208 JOB NO PRELIMINARY DEVELOPMEN P PRELIMINARY DEVELOPMEN PLAN LAN DRAWN BY: CEE / BNH HEE NO. C3.00 A.00

12 Applicant ubmittal

13 Applicant ubmittal

14 : : +\GURORJLF 6RLO *URX²-RKQVRQ &RXQW\.DQVDV Z WK 6WUHHW l ta t i m b u t n a c i l p p A 6RLO 0D PD\ QRW EH YDOLG DW WKLV VFDOH : : 0D 6FDOH LI ULQWHG RQ $ RUWUDLW [ VKHHW 0HWHUV )HHW 0D URMHFWLRQ :HE 0HUFDWRU &RUQHU FRRUGLQDWHV :*6 DWXUDO 5HVRXUFHV &RQVHUYDWLRQ 6HUYLFH (GJH WLFV 870 =RQH :*6 :HE 6RLO 6XUYH\ DWLRQDO &RRHUDWH 6RLO 6XUYH\ 3DJH RI

15 +\GURORJLF 6RLO *URX²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pplicant ubmittal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

16 Applicant ubmittal

17 Applicant ubmittal

18 Applicant ubmittal

19 Applicant ubmittal

20 Applicant ubmittal

21 Applicant ubmittal

22 Applicant ubmittal

23 Applicant ubmittal

24 Applicant ubmittal

25 Applicant ubmittal

26 Applicant ubmittal

27 Applicant ubmittal