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HomeMy WebLinkAboutApplication APPLICANT 5/3/2022 (2)CHERRY SPRINGS SPRINGFIELD, OREGON STORMWATER MANAGEMENT mArkrANTLAr-liff "- TABLE OF CONTENTS Notice of Operations and Maintenance Agreement Operations and Maintenance Agreement Stormwater Management Drainage Report and Site Plan Landscape Plan Facility Specific Operations and Maintenance Plans Planter Rain Garden Inspection and Maintenance Log RETURN TO: CITY OF SPRINGFIELD DEVELOPMENT & PUBLIC WORKS DEPT. 225 FIFTH ST. SPRINGFIELD, OREGON 97477 RESERVE THIS SPACE FOR RECORDING STICKER "Avoid $20 nonstandard doe FEE (font too small)... Print this form on Legal size paper." Notice of Operations and Maintenance Agreement Private Stormwater Management and Treatment System The undersigned owner(s), is hereby given notice that storrawater runoff from the `Property' described below requires stormwater management facilities to be located, designed, and constructed in compliance with the City of Springfield's Engineering Design and Procedures Manual. Said facilities shall be operated and maintained in accordance with the Operations and Maintenance Agreement (O&M Agreement) on file with the City of Springfield, Development and Public Works Department. Cherry Springs, LLC (Property Owner/Developer) acknowledges and agrees to maintain private stormwater treatment facilities listed in this document. The maintenance of the storrawater facilities listed in this document is required as part of the Development Agreement with the City of Springfield. This facility will be operated and maintained in accordance with the requirements stated in this document and in the latest edition of the City of Springfield Engineering Design Standards and Procedures Manual, Chapter 3. The City reserves the right to enter and inspect any stormwater facility located on the "Property' to ensure the facilities are operating as designed. Failure of the responsible party to inspect and maintain the facilities can result in an adverse impact to the public storrawater system and the quality of receiving waters. The requirement to operate and maintain the storrawater treatment facilities in accordance with the approved site development agreement and the site O&M Agreement is binding on all current and future owners of the property. The Agreement and its O&M Plan maybe modified under written consent of new owners with written approval by and re -filing with the City. The O&M Agreement and O&M Plan for facilities constructed pursuant to this notice are available at the Development and Public Works Department, 225 Fifth St, Springfield Oregon, or call (541)-736-3753, between the hours of 8 a.m. and 5 p. in, Monday through Friday. The Subject premises, is legally described as follows: A TRACT OF LAND BEING A PORTION OF INSTRUMENT NUMBER 20 20-0 16 13 1, OFFICIAL RECORDS OF LANE COUNTY, LOCATED IN THE SOUTHEAST QUARTER OF SECTION 32, TOWNSHIP 17 SOUTH, RANGE 2 WEST, WILLAMETTE MERIDIAN, LANE COUNTY, OREGON, MORE PARTICULARLY DESCRIBED AS FOLLOWS: BEGINNING AT THE INITIAL POINT, A 2 -INCH IRON PIPE MONUMENTING THE INITIAL POINT OF THE MIRANDA PLAT, FILE 73, SLIDE 93, LANE COUNTY PLAT RECORDS; THENCE ALONG THE EAST BOUNDARY OF INSTRUMENT NUMBER 2020-016131 SOUTH O1°17'46" WEST, 1215.52 FEET TO A 5/8 -INCH IRON ROD ON THE NORTHERLY RIGHT-OF-WAY LINE OF OREGON STATE HIGHWAY #126 (MCKENZIE HIGHWAY), SAID POINT ALSO BEING THE INITIAL POINT OF MEYER ESTATES, LANE COUNTY SURVEY CS41032; THENCE WESTERLY ALONG SAID NORTHERLY RIGHT-OF-WAY LINE NORTH 89045'34" WEST, 179.31 FEET TO A 5/8 -INCH IRON ROD; THENCE LEAVING SAID NORTHERLY RIGHT-OF-WAY LINE NORTH 00°15'31" WEST, 299.21 FEET TO A 5/8" IRON ROD; THENCE NORTH 89044'20" WEST 167.23 FEET TO A 3/4 -INCH IRON PIPE ON THE EASTERLY RIGHT-OF-WAY LINE OF COUNTY ROAD NUMBER 1238; THENCE ALONG SAID EASTERLY RIGHT-OF-WAY LINE NORTH 00° 12'25" EAST 915.16 FEET TO A 5/8 -INCH IRON ROD; THENCE LEAVING SAID EASTERLY RIGHT-OF-WAY LINE EASTERLY ALONG THE NORTH BOUNDARY OF INSTRUMENT NUMBER 2020-016131 SOUTH 89056'20" EAST 348.16 FEET TO THE POINT OF BEGINNING AND THERE TERMINATING. THE ABOVE DESCRIBED PROPERTY CONTAINS 8.54 ACRES (371,853.91 SQUARE FEET), MORE OR LESS. SEE EXHIBIT "A" ATTACHED HERETO AND INCORPORATED HEREIN BY REFERENCE Page 1 of 2 By signing below, the signer accepts and agrees to the terms and conditions contained in the Operations and Maintenance Plan and in any documents attached. This instrument is intended to be binding upon the parties hereto, their heirs, successors, and assign Witness whereof, the undersigned has executed this instrument on this day of 20 Owner(s): Signature Print Name STATE OF OREGON, County of Lane, ❑ This instrument as acknowledged before me on by , owner(s) of the above described premises. ❑ This instrument as acknowledged before me on by as premises. Oregon owner(s) of the above described My Commission Expires Page 2of2 Operations and Maintenance Agreement Private Stormwater Management and Treatment System Land Development Application Number: OwneYs Name:_Cheny Springs, LLC Phone No.: Mailing Address:_3026 West 7th Place, City Eugene State OR Zip 97402 Site Address: City State Zip Site Map and Tax lot No. :_17023241 Tax Lot 400 (Or cUmh dxwneM with odifitiond lot irrfornwtion ifthe fmility crosses mm thmr ore lot) Type of Facility(ies)_Stommater Planters, Rain Gardens The storrawater managemerd facility(ies) shown on the Site Plan are arequired condition of development approval for the identified property. The owner of the identified property is required to operate and maintain the facility(ies) in accordance with the Facility Specific Operation and Maintenance Plan(s) (O&M Plan(s)) attached to this form and on file with the City. The O&M Plan for the facility(ies) will be available at the Development and Public Works Department, 225 516 Street, Springfield, Oregon between the hours of S a.m. and 5 p.m., Monday through Friday. 2) Financiallyresponsible party (circle one): operty Owner Homeowner Association Other (describe) 3) Party(ies) responsible for maintenance (only if other than owner). Daytime phone no.(_)_ Emergency/after-hours contact phone no ( ) Maintenance Contact Party(ies) Name & Business Address: 4) Maintenance practices and schedule for the stormwater facility(ies) are included in the Facility Specific O&M Plan(s) attached to this form and filed with the Development and Public Works Department, City of Springfield. The operation and maintenance practices are based on the version of the City of Eugene's Stormwater Management Manual in effect at the date of development application, as modified by any plans attached to this document at the time of signing. Application Date: By signing below, Filer accepts and agrees to the terms and conditions contained in the Operations and Maintenance Plan(s) and in any document executed by Filer and recorded with it. Filer Signature: Print Name: Appendix 3A-2 aevom&16 Page 1 of 1 EDSP Adopted December 03, 2012 Stormwater Drainage Study Cherry Springs Apartments Prewreday, Erik D. Ranger, PE i.e. Engineering, Inc. 809 SE Pine Street Roseburg, Oregon 97470 i.e. Project No. 2923-07 May 2, 2022 StormwMer Drainage Study Page 1 May 2, 2022 Cherry Springs Apartments TABLE OF CONTENTS 1 INTRODUCTION .........................................................................................................3 2 EXISTING CONDITIONS..............................................................................................3 3 PROPOSED DRAINAGES YSTEM..................................................................................3 4 WATER QUALITY MITIGATION...................................................................................4 5 WATER QUANTITY MITIGATION................................................................................5 6 PUBLIC IMPROVEMENTS...........................................................................................6 7 CONCLUSION.............................................................................................................6 APPENDIX A — Preliminary Construction Plans APPENDIX B — Drainage Exhibits APPENDIX C — Drainage Calculations 9 PROFESS ti @UIrvFF, /p @ � 72679PE P 7 OPEGON� ``P rya. paw EXPIRES: 12/31/2022 FINAL ELECTRONIC DOCUMENT AVAILABLE UPON REQUEST Stormwater Drainage Study Page 2 May 2, 2022 Cherry Springs Apartments 1ASK Yj;1611Rri111I11li This report contains the hydrologic and hydraulic design parameters for the Cherry Springs multifamily apartment complex. This report should be reviewed in conjunction with the preliminary project construction and landscape plans. The project area is located along 481h Street, northeast of the 481h Street and Main Street intersection. The property is identified as Tax Lot 400 of Section 32, Township 17S, Range 02W. The property is approximately 8.51 acres. The property could be described as a flag lot, with frontage on Main Street, but the primary frontage for the property is 915 feet along 481h Street. The "pole' portion of the property is not part of this development, with only the "flag' portion being developed, which is approximately 7.3 acres. Four residential streets abut the east side of the property, including A, B, C and Beaver Streets. Utilities are located at the property line along 481h and the eastern residential streets. The project will develop 16 new 8-plex apartment buildings, a manager's leasing office and dwelling, and surface parking, sidewalks, and landscaped areas. The project will have one public street, extending B Street through to the west to 48" Street. The project will also include a new, ten foot wide multiuse path along, but separated from 481h Street. 2 EXISTING CONDITIONS The site is wholly undeveloped and covered in vegetation. The primary vegetation is grasses, with a cluster of evergreen and deciduous trees in the northeast corner of the property and other trees sporadically located throughout the property. There are no apparent well defined drainage patterns, with many localized depressions, but in general, the southerly two-thirds of the project area drain from east to west, and the northerly third generally drains to the north into a depressed area. Runoff from the east half 481h Street drains in to a shallow roadside ditch on the east side of the road, generally draining to the north. The site is located within the 99 -year wellhead zone but there are no restrictions. There are no wetlands onsite, and the soils are well draining per geotechnical explorations. There are no utilities onsite, but all utilities are located adjacent to the property. 3 PROPOSED DRAINAGE SYSTEM The majority of the project drainage improvements will be onsite, private system. Public improvements will be made in the extended B Street and along the eastern side of 481h Street. Stomaeater Drainage Study Page 3 May 2, WU Cherry Springs Apartments Water quality and quantity mitigation will be provided for all asphalt and adjacent sidewalks. Water quantity mitigation will be provided for all roof runoff at a minimum. The following sections discuss the parameters and mitigation methods. 4 WATER QUALITY MITIGATION Water quality treatment will be provided for all non -building rooftop impervious surfaces. All runoff from asphalt surfaces and adjacent sidewalks to the asphalt will drain into Gibson steel catch basins, or similar, that will have Flogard Plus catch basin inserts. The catch basins will provide pretreatment by physical screening of pollutants such as gross solids, trash, and debris using a filter fabric basket for removal of petroleum hydrocarbons using sorbent pouches. The catch basins will also have a sediment trap for a back up to trap debris. The catch basins will discharge into vegetated, infiltration rain gardens or infiltration planters. The water quality facilities are designed per the City of Eugene 2014 Stormwater Management Manual (SWMM) and will be landscaped per the SWMM requirements, as shown on the project specific landscape plans. Both facility types are of similar design and provide treatment through the same methods with the only difference being that the planters have vertical concrete walls while the rain gardens have sloped vegetated slopes. Planters will be used within the parking areas, where curbed planters are used, and rain gardens will be used in landscaped areas, behind buildings. Infiltrations facilities will be used because the onsite soils have been shown to infiltrate very well through infiltration test conducted by the geotechnical engineer. Locations of the treatment facilities and contributing drainage basins and sizes are shown on the drainage exhibits in Appendix B. While the depth of water quality storm is 0.83 inches for an SCS Type 1A, 24-hour storm, the water quality facilities have actually been designed to accommodate the 24-hour, 25 - year storm event depth of 4.8 inches for full infiltration of all storms up to and including the 25 -year storm. The treatment facilities will have a minimum 12 -inches of growing medium, with 12 -inches of storage depth and a minimum of 2 -inches of freeboard. The facilities have been sized based on an infiltration of 2 -inches per hour of the growing medium, with the native infiltration rate exceeding the rate of the growing medium. For the rain gardens, infiltration was only assumed through the bottom footprint of the facility, so sizing of the two types of facilities is similar. In general, overflows are not provided as the facilities have been designed to infiltrate the flood control storm for a drainage area of less than 40 acres per the Eugene SWMM. Sizing of the planters and rain gardens was completed using the SBUH methodology in HydroCAD 10.00. Sizing calculations are included in Appendix C. A generic sizing methodology was used to determine the size of the bottom of the treatment facility Sturmwater Drainage Study Page 4 May 2, 2@2 cherry Springs Apartments needed based on a percentage of the contributing drainage basin. For the model, a curve number of 98 was used with a time of concentration of 5 minutes. As mentioned above the design storm used was a SCS type 1A, 24-hour, 25 -year storm event with a depth of 4.8 - inches and an exfiltration rate of 2 -inches per hour. Assuming a contributing drainage basin of 5,000 square feet the resulting treatment facility must be a minimum of 450 square feet, or 0.09 -percent of the contributing drainage basin, to fully infiltrate the runoff from 25 - year storm event. At this size, the facility will also provide treatment up to the 25 -year storm event. 5 WATER QUANTITY MITIGATION The goal for water quantity mitigation is to limit runoff to pre -development rates for the 2 through 25 -year storm events. With the high infiltration rates determined during geotechnical exploration, the proposed plan will provide infiltration for all SCS type 1A, 24- hour storm depths up the 25 -year storm event. Three infiltration tests across the site were completed with hydraulic conductivity rates of 6.0, 23.9, and 42.0 inches per hour, respectively. The site infiltrates very well due to the presence of alluvial gravel deposits that make up the onsite underlying strata. The lowest rate of infiltration occurred in the third test location near geotechnical test pit 7. The test was performed in fine-grained clayey silts near the north boundary of the property. Test pit number 7 showed a lenses of fine-grained material, which would impact the infiltration. This was the only test pit in the geotechnical exploration that had this soil lenses, so it appears to be more of an anomaly onsite, so the likely typical infiltration rate is closer to the other test rates on-site. For design of the infiltration facilities, a conductivity rate of 8.0 inches per hour was used. This was chosen using a factor of safety of 3 based on the infiltration test conductivity rate of 23.9 inches per hour. Infiltration only facilities will be used for roof runoff, onsite walks, and the new multiuse path. Infiltration facilities will consist of 2 -foot wide by 4 -foot deep trenches back filled with clean drain rock. The clean drain rock will be wrapped in geotextile fabric to a depth of 6 -inches below the surface. The top six inches will also be filled with clean drain rock to the surface. Roof downspouts will discharge directly on to the ground and be dispersed so that the runoff drains across landscaped areas before draining in to the infiltration facilities. Most of the runoff from walks will also drain across landscaped areas before entering the infiltration facilities. A ribbon of drain rock will be placed along the length of the new multi- use path. Sizing of the infiltration facilities was completed similar to that of the treatment facilities. Sizing of the infiltration facilities was completed using the SBUH methodology in HydroCAD 10.00. Sizing calculations are included in Appendix C. A generic sizing methodology was used to determine the required volume of the infiltration facility needed based on a Stor nwater Drainage Study Page 5 May 2, 2022 Cherry Springs Apartments percentage of the contributing drainage basin. For the model, a curve number of 98 was used with a time of concentration of 5 minutes. For the drain rock filled trench, a void space of 40 -percent was assumed and a hydraulic conductivity of 8 inches per hours, with an SCS type 1A, 24-hour, 25 -year storm design event depth of 4.8 inches. With a freeboard goal below the top of the rock of 6 -inches and an assumed contributing drainage area of 5,000 square feet, the required storage volume at four feet of depth is 680 cubic feet or a footprint of 170 square feet, or a footprint that is 3.4 -percent of the contributing drainage area. 6 PUBLIC IMPROVEMENTS With this project, most of the improvements are private, but there will be minimal public improvements. With the extension of B Street, there will be a new road, street parking, and sidewalk. As with all onsite runoff, the runoff from B Street will be treated and infiltrated the exact same way as previously discussed in planters on either end of on -street parking strips. In 48d' Street, the east side of the road will drain in to the roadside ditch which will be modified to a rain garden, with the goal of infiltration. In the roadside linear basins, there will be overflow catch basins set three inches below the edge of asphalt. The catch basins will connect into a new 12 -inch pipe that will connect into the existing storm at the northwest corner of the property. The new storm sewer pipe will have at least three feet of cover, with a slope of 0.99 percent. Assuming a manning's n -value of 0.014, the flow velocity in the pipe when flowing half full is calculated to be 4.20 feet per second, and the pipe would have a full flow capacity of 3.29 cubic feet per second. Using the rational formula with a runoff coefficient of 0.90 and a 2 -year, 10 -minute rainfall intensity of 1.3 cfs, the pipe would be able to pass runoff from an impervious contributing drainage basin of 2.81 acres, 122,403 square feet or 5,100 linear feet of 24 -foot wide impervious surface. 7 CONCLUSION The Cherry Springs Apartments will have no negative impacts on the existing drainage patterns or conditions within and adjacent to the project. The following appendices include all water quality and quantity calculations, preliminary related construction plans, and drainage exhibit. Water quality treatment through the use of vegetative methods, designed per the City of Eugene SWMM, will treat all runoff from asphalt pavement. All stormwater runoff from the site will be infiltrated into the well -draining onsite soils, eliminating adverse downstream impacts due to increase runoff and also preventing adverse impacts to the quality of downstream surface waters. Full treatment of all stormwater runoff leaving the site will occur priorto discharge. Stor nwater Drainage Study Page 6 May 2, 2022 Cherry Springs Apartments APPENDIX A Preliminary Construction Plans K WDMMMUMONNOM: I. IN. BIS 4X 5 .1 - 405.,10 04LN W/ HINGED BEGRAW MP B, HRNl °' N-12 °R PIPE. INSIX (5)- ♦ C I IENGIX 4N0 SLOPE PER P. 1i' IN (E)- BEBAO .1RERo'X m.,I 12' 1. .i (N)- .RED CJUIm- N4.10 9 X6TNL 2 alwLnl 8' WM1 N2,G DSIII WE HINGED P 2. XI RHL 12. M-12 RS BI iH AND SLOPE PER PWI. CMS4L BGWDMIN GI11 N' E°SON SIEEL G1EX .. �0/ +X BE CPTO.E.1HN.E. 0+Gi RI FILMIER HE 8' NS 0015040 r MItN.IN yam' (5 49D LPER B' 1N29J 10 IN -A-04. 2 BSO RER dY y DBW NV LYrt / x xRR L- I 4. �Weenuk CJ INR4L 0.WROW C° ] rvRILL N' c Rpl STEELGIM S/ HINGE Nm FILLERD"i B 05 e I MwN N 12 NV ENT- N1 CP+CPi H PINSERT NJ ON- NI3 5 eegee n GLEER - � —11 24'GBBONY"" _ I.E.GE PME G51N X5EM 1 I _�\ `E 4H B. SMB MO WMER. ' B..TE. 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M 51+710. )%B' l P IM -N 33 M CNL X018 8d£i C10 YM m WE C.1LL.Ipp1 ssA OIA BSR-COI -LO10 MflCWI H51 WI u[.•�n ....... ....... ........ ..... ....... .... . ......... ... .. ........ . .. ......... ... ........ ...... ....... ........ ... ....... ...... . ......... .. ......... . .. ......... .... ........ .. ...NA .. ...... ....... x x xc8c B� t -.5 $. [ u Bus xwv slHsu �..... ................................................................................................................. ..... .. ............. ...... ....... ... ... ...... ......... ....... ....... ......... ...... ....... ....... ................ .... ... ...... ... ........... ........... ..... .... ................................................................................................................................... ... .. ............ ...... ... .... ................. ....... .. .... ... ......... ...... ....... .. ..........,.� 8d£i C10 APPENDIX B Drainage Exhibit APPENDIX C Drainage Calculations 3S 2S INFILTRATION RAI GARDEN FACILI 2 4P INFILTRATION FACILITY RAIN GARDEN Subcat Reach m Lin k cherry springs drainage Prepared by {enter your company name Type IA 24 -hr 25 -year Rainfall=4.80" Printed 12212020 s LLC Paae 2 Summary for Subcatchment 2S: RAIN GARDEN Runoff = 0.13 cfs @ 7.88 hrs, Volume= 0.044 af, Depth= 4.56" Runoff by SBUH method, Split Pervious/Imperv., Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type IA 24 -hr 25 -year Rainfall=4.80" Area (sf) CN Description 5,000 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 2S: RAIN GARDEN Hydrogre h 0.13 _cfs 0.13 0.12 0.11 0.1 L --, ----- -LRi 13 14 15 16 17 18 nma (hogs) )e IA 24,hr lrea=51-000 si ime=0.044 of -Depth=4.56" Tc=5.0 min CN=0/98- 25 26 27 28 29 30 cherry springs drainage Prepared by {enter your company name Type IA 24 -hr 25 -year Rainfall=4.80" Printed 12212020 s LLC Paae 3 Summary for Subcatchment 3S: INFILTRATION FACILITY Runoff = 0.13 cfs @ 7.88 hrs, Volume= 0.044 af, Depth= 4.56" Runoff by SBUH method, Split Pervious/Imperv., Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type IA 24 -hr 25 -year Rainfall=4.80" C1'll 5,000 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchmerl INFILTRATION FACILITY Hydrogre h nma (hogs) ■ aunar cherry springs drainage Type IA 24 -hr 25 -year Rainfall=4.80" Prepared by {enter your company name here) Printed 12/21/2020 HydroCAM 10.00-21 s/n 11251 © 2018 HydroCAD Software Solutions LLC Paae 4 Summary for Pond 413: RAIN GARDEN Inflow Area = 0.115 ac,100.00% Impervious, Inflow Depth = 4.56" for 25 -year event Inflow = 0.13 cfs @ 7.88 hrs, Volume= 0.044 of Outflow = 0.02 cfs @ 11.35 hrs, Volume= 0.044 af, Atten= 82%, Lag= 208.8 min Primary = 0.02 cfs @ 11.35 hrs, Volume= 0.044 of Routing by Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Peak Elev= 11.01' @ 11.35 hrs Surf.Area= 450 sf Storage= 453 cf Plug -Flow detention time= 190.2 min calculated for 0.044 of (100% of inflow) Center -of -Mass det. time= 190.2 min ( 845.7 - 655.5 ) Volume Invert Avail.Storage Storage Description #1 10.00' 563 cf 10.00'W x 45.001 x 1.25'H Prismatoid Device Routing Invert Outlet Devices #1 Primary 10.00' 2.000 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 1.00' primary Out Flow Max=0.02 cfs @ 11.35 hrs HW=11.01' (Free Discharge) L-1=Exfiltration ( Controls 0.02 cfs) Pond 413: RAIN GARDEN Fmionow 6.,4 0.13 cfs ------------------- - - ------ ■Paeery 9.13 - - - - - - - - -- Inflow-' rea=Q.;115arrc- a, rage=453 cf 9.99 -- 9.98 -� _• � � -� - - -'- -� _� 0.07 3 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Time (hours) cherry springs drainage Prepared by {enter your company name Type IA 24 -hr 25 -year Rainfall=4.80" Printed 12212020 s LLC Paae 5 Summary for Pond INFILTRATION: INFILTRATION FACILITY Inflow Area = 0.115 ac,100.00% Impervious, Inflow Depth = 4.56" for 25 -year event Inflow = 0.13 cfs 7.88 hrs, Volume= 0.044 of Outflow = 0.04 cfs 8.86 hrs, Volume= 0.044 af, Atten= 67%, Lag= 59.2 min Primary = 0.04 cfs 8.86 hrs, Volume= 0.044 of Routing by Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Peak Elev= 13.38' @ 8.86 hrs Surf.Area= 170 sf Storage= 230 cf Plug -Flow detention time= 27.5 min calculated for 0.044 of (100% of inflow) Center -of -Mass det. time= 27.5 min ( 683.0 - 655.5 ) Volume Invert Avail.Storage Storage Description #1 10.00' 272 cf 2.00'W x 85.001 x 4.00'H Prismatoid 680 cf Overall x 40.0% Voids Device Routing Invert Outlet Devices #1 Primary 10.00' 8.000 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 1.00' rimary Out Flow Max=0.04 cfs @ 8.86 hrs HW=13.38' (Free Discharge) =Exfiltration ( Controls 0.04 cfs) Pond INFILTRATION: INFILTRATION FACILITY ■ ionw 6.14 " .--------- 0.13 cfs ■ Pm,ery 6.13 Inflow Area=0.115 ac 6.12 Pepk I=1ev=13.38' 6.,, --------- 0.1 ------- --------Storage=230 cf 6.69 9 6.66 � 6.67 , --------- 6.66------------ 6.as 0.04 cfs -------- 7 8 9 19 11 12 13 14 15 16 17 18 19 29 21 22 23 24 25 26 27 28 29 Time (hours) CHERRY SPRINGS APARTMENTS LANDSCAPE MASTER PLAN • • • JJ{{vvIIY2 J2 kq_ C i O O a Dw �o I zo 75 73 • •®._ O \- e o fflzj• a + LANDSCAPE ELEMENTS CITY OF SPRINGFIELD IRRIGATED LAWN GRASS = 20,650 (+/-) s.f. PLANTER BEDS = 43,700 (+/-) s.f. civil STORMWATER PLANTER FACILITIES = 26,000 (+/-) s.f. a £ l LOW MOW / LOW WATER SEEDED AREAS = 19,500 (+/-) s.f. DECORATIVE WASHED RIVER ROCK 'ROPOSED TREES 1lKF PARKIN(- 48TH ST. -- INTERJOKPARKING LOT ISLANDS 77 PARKING & MANEUVERING AREA: 71,230 (+/-) s.f. TOTAL INTERIOR PARKING LOT ISLAND AREA TO BE LANDSCAPED: 7,340 (+/-) s.f. REQUIRED INTERIOR PARKING LOT ISLAND LANDSCAPE: 5% PROPOSED INTERIOR PARKING LOT ISLAND LANDSCAPE AREA: 10% TREE REQUIREMENTS: NUMBER OF PARKING LOT ISLANDS: 47 PER 3.2-240.D.1 (c), REQUIRED NUMBER OF INTERIOR PARKING LOT ISLAND TREES: 49 INTERIOR PARKING LOTTREES PROVIDED: 49 10 Is cc Im a lo� O y H CITY OF SPRINGFIELD LANDSCAPE REQUIREMENTS: civil a £ l MULTI -UNIT DESIGN STANDARDSsurveying oz SECTION 3.2-240 �� architecture D. Design Standards. All of the following design standards shall be met by all multi -unit developments. Building planning Orientation, Building Form Storage', Transition and Compatibility Between Multi -unit and HDR Development, Open Space, w � Landscaping, Pedestrian Circulation, Parking, and Vehicular Circulation 6. Landscaping, Fences and Walls. Multi -unit developments shall provide landscaping as specified in Section 4.4-105 and the following standards (See Figure 32Q). i.e. Frigineering,Inc. a. A minimum of 15 percent of the site shall be landscaped with a mix of vegetative ground cover, Pi 609 Pine S[ shrubbery and trees. Trees, a minimum 2 inches (dbh) in caliper, and shrubbery, a minimum of 24 inches Roseburg, OR in height, shall be planted. Bark mulch, rocks and similar non -plant material may be used to compliment the cover requirement, but shall not be considered a sole substitute for the vegetative ground cover ieengineering.mm requirement, b. Street trees, a minimum 2 inches (dbh) caliper, shall be placed within the planter strips between the CL curb and the sidewalk. Street trees shall be planted 1 per every 30 linear feet (minimum) of street frontage, PR FEsso as specified in Section 4.2-140, \S�ERG� ' / c. The use of native and/or drought -tolerant landscaping is encouraged. All landscaping shall be irrigated 81111 PE 11 with a permanent irrigation system unless a licensed landscape architect submits written verification that the proposed plant materials do not require irrigation. The property owner shall maintain all landscaping. `v OREGON �o� c' 1 14 �� , y'0<AS 8. Parking. Multi -unit developments shall provide parking design as specified in the following standards. R c. There shall be 1 planter island for every 8 parking spaces. Planter islands shall be a minimum of 6 feet co CM wide, exclusive of the curb, the full length of a parking space containing 1 shade tree (a minimum 2 inches E)PIRES. 06/30/2023 (dbh) in caliper at planting) and vegetative ground cover. Trees shall be specimens capable of attaining 35 feet or more in height at maturity and shall not produce excessive fruit, nuts, or sap (ie., die to pest damage). Bark mulch is not an acceptable substitute for vegetative ground cover in the planter island. p� Water quality features may be incorporated into planter islands. Landscape areas shall be evenly � -- distributed throughout the perimeter of interior parking areas, where practicable. See Section 4.4-105F. for RE - recommended shade trees, O d. A minimum 6 -foot wide planter area shall separate and visually screen parking from living area windows. The planter area shall include a mix of ground cover, shrubbery, and trees with appropriate growth habit (ie., for narrow planters and any height limitations including balconies, overhangs, and eaves). Shrubbery in this planter area shall be at least 24 inches in height at the time of planting, and trees a minimum of 2 inches (dbh) in caliper at the time of planting. See Section 4.4-110, I . Parking area landscaping shall be designed to reduce storm water runoff (eg., through infiltration swales LJJ- and other measures), as practicable and k Bicycle parking shall be provided as specified in Section 4.6-140-155 and may be incorporated into the /© landscaping design. O o SECTION 4.4-105 LANDSCAPING w B. Three types of landscaping may be required. 1. Landscaping standards for private property as specified in this Section and other Sections of this Code. 2. Street trees in the public right-of-way as specified in Section 4.2-140 3. Curbside planter strips in the public right-of-way as specified in Section 4.2-135. D. Unless otherwise specified in this Code, the following areas of a lot/parcel shall be landscaped. l 1. All required setback areas and any additional planting areas as specified in the appropriate zoning district. 2. Parking lot planting areas required in this Section. E. At least 65 percent of each required planting area shall be covered with living plant materials within 5 years of the date of installation. The living plant materials shall be distributed throughout the required planting area. The planting acceptable per 1,000 square feet of required planting area is as follows. 1. As a minimum, 2 trees not less than 6 feet in height that are at least 2 inches in caliper (at the time of planting, not including root ball), and 2. Ten shrubs, 5 gallons or larger. 3. Lawn and/or groundcover may be substituted for trees or shrubbery, unless required for screening when there are adequate provisions for ongoing maintenance. F Parking lot planting areas shall include. 1. Parking and driveway setback areas specified in the applicable zoning district, and 2. 5 %of the interior of a parking lot, exclusive of any required parking setbacks. c 3. See also Section 3.2-240D.8. c. for multifamily design standards o G. All new required planting areas shall be provided with a permanent underground irrigation system unless where planted _ with native species or plant communities, or as may be exempted by the Director. H. Landscaped setbacks abutting required screening on the same property may be exempted by the Director from planting requirements if the area is not visible from any public right-of-way or adjacent property. 0 SECTION 4.4-110 SCREENING A. Unless otherwise specified in this Code, screening shall be required. 1. Where commercial and industrial districts abut residential districts and no approved screening exists 2. For outdoor mechanical devices and minor and major public facilities, 3. For outdoor storage yards and areas in non-residential districts abutting residential districts along their 3 common property line, D 4. For trash receptacles, 5. For automobile wrecking and salvage yards, and 6. For multifamily developments. cd B. Screening shall be vegetative, earthen and/or structural and be designed to minimize visual and audible incompatible uses from adjacent properties. Unless specified elsewhere in this Subsection, screening shall be continuous to at least 6 feet above ground level. The following standards shall apply. 1. Vegetative Screening. Evergreen shrubs shall be planted to form a continuous hedge. When immediate screening is necessary, a sight -obscuring fence shall be installed in place of, or in conjunction with the shrubs. The 6 -foot height standard specified in Subsection B., above shall occur within 4 years of planting. $ EXCEPTION. For multifamily development, the vegetatNe screening standard specified in Section 3.2-240D.8. d. apply. y H a a £ LLI oz � w � CL Q co CM Z CL � � RE € LJJ- o w L1 0' 20' 40' 80' SCALE. 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O ®Oa!�0��00!�O `OO�JOPro: ° —I #e1 - ��f�► - :O iei iei im �•r ..r ieiML ior��##iei�,k:{k�'•ei�:{kik sYI�Y:{k_ a'r v, ami oil S "'r --'s® KEYED LANDSCAPE NOTES: Fil SEE 0 STORMWATER FACILITY INFORMATIONON © INSTALL DECORATIVE BOULDERSMEDIUM BIKE PARKING SEE H9 [6] INSTALL GRASSCRETE PER MANUFACTURERS SPECS PLANTING AREAS 3] SPADE EDGE BETWEEN LAWN AND PLANTER BEDS F77 EXISTING TREE TO BE PROTECTED PER 9 LANDSCAPE rGING BETWEEN STONE AND GRASS QAPPLYAND INSTALL SEED MIX PER MANUFACTURER'S CHERRY SPRINGS APARTMENTS LANDSCAPE PLAN SOUTH PLANT SCHEDULE Subject to Change Based on Availability and Per Landscape Designer TREES Qi ROTMICALNME COMAMJN NNNE SIZE HEIGHTPANGE WIDI RANGE SCALE. REMARKS 8 Ana peindum'Samp Kdw' Same Jia MgAe 2Cd. 1,119 11 2), � z ORALTSIMIU 13 Ana rudum R,d MgAe 2Cd. 4,1FA' 31-40' ORALTSIMIU 12 AfiduSUI,do'Canpade' Dwarsvawaery rree zcd. 1,119 1,119' ORALTSIMIU 12 .,e, need Sis-H.1G.- Heats d G,tdR d 2Cd. 21-3J 21-3J' SINGLE-JNK. EVENLVRPANCHED. • 15 Omnis knusa McusS DmJwdxl 2Cd. 1525' 21-3J' ORALTSIMIUR FF ® 31 Fr tims pemsylvanf 'Ma Ihdl's Sced ss' ryarSlty's Sealers Great A h 2Cd. 4,1FA' 4,1FA' 4C ORALTSIMIU ib regasvoaniaiMfa'amWaKfite' aemba KfiiN aape MyNe Wit TmI* 2Cg, iS25' iS25' ORALTSIMIUR 22 Fut' ,lsp eRdlaire Olan Oct. 21-3J 21-3J' ORALTSIMIU SHRJ QTY ROTANICALNAME COMMON NAME SIZE HEIGHTPANGE WIDI RANGE CONTANER REMARKS • 195 Ragaiavir9nare wid Slav y I . Pot ORALTSIMIUR 0 84 GIM Heb, I . s Pot ORALTSIMIU ® 3J Hdidotrulm sa M.rere Hue Offi Grass I . Po[ ORALTSIMIUR is 87 R.sag}nI,rerpe Wontl Rme I ' C.i Pot ORALTSIMILAR 5 Sgraestku[jas Wertan Sgres I . Pot ORALTSIMIU GRASSES QTY HOTANICALNAME COMMON NAME SIZE HEIGHTPANGE WIDTH RANGE CONTANER REMARKS p 24 Cdvn bs xanNiAma'KVI F eti 'FerlFceSta Fmlba Reed Grass 3gd. q{' 1224' Po[ ORALTSIMIU dvdsa Eves Grey Sed, igd. 1620 1220 Pot ORALTSIMIU • 40J Jnnp,musreri'Ma ,s mte' Nm ,sK ite A" igd. 1620 1220 Pot ORALTSIMIU 0 51 PemiseWn al¢avrti]er'HvreF' V Im Fainlan Grass 3gd. P t ORALTSIMIU PERENNIALS QTY HOTANICALNAME COMMON NAME SIZE HEIGHTPANGE WIDTH RANGE CONTANER REMARKS • 53 Ru Anahrra HI Sssai igd. 2535' 1220 Pot ADDRIONALANDA)RSJBSTIRTE SPECIES N (EPTED EECIDWI-S SHRJ&S QTY 190TANIIDALINAME COMMON NAME SIZE HEIGHTPANGE WIDTH RANGE CONTANER REMARKS Q 55 FotagIlagvdeni Ouaf Wlbagila 3gd. 2535' 3648' Pot ORALTSIMIU 0 14 Hadrera am,nWa'Grem Spee' gnauai All 4' 1624' 1224' Pot ORALTSIMIU Q32 Hibis,us rynwm 'Red Heat' R,d Heat RmeofS 3' Ht 8-10' 6' Pot ORALTSIMIU 0 6 Vannnun o v)rnLmun Hghd hRudxary 3gd 46' 3648' Pot ORALTSIMIU EVERGREENSHRJ&S QTY HOTANICALNAME COMMON NAME SIZE HEIGHTPANGE WIDTH RANGE CONTANER REMARKS 54 AUdiax gaidMa'Rains Masini Rains Nosm GI 4b,ia 5gd. q{' 4 w Pot ORALTSIMIU O2) P !Sa in1f ,Geld Oust' Gnld Dtsst J,.se rare) 5gd. 68' 6' Pot ORALTSIMIU 0 PNeax - title Jd Ule J&h SONnm Indra Plelea 5ga1. 46' 46F0 Pot ORALTSIMIU 0 158 Ha anadfdia HeaVesf Hagnia I . 1620 1220 Pot ORALTSIMIU 6 CetS x'Gra,.w RW RHC Rose 3ga1. 2535' 3648' pot ORALTSIMIU .0 • 2 10 Ilexnrmda dspaiere Hdly 5ga1. 8-10' 68' Po[ ORALTSIMIU Cf 97 Ilexnrmda'Htllai Ada J�eHoly 3ga1. 37-48' 46F0 Pot ORALTSIMIU 0 41 revaMilaaigstirdia Poet reveller 3ga1. 2535' 2435' Pot ORALTSIMIU 0 31 r Vv Iaaigx4fdia'Nureted' WI,tesd ErOisb revmtla 3ga1. 1620 2435' Pot ORALTSIMIU 94 Nalma arHxadesla'Soft Caea' Soft Caers Mdrittia 3ga1. 2535' 2435' pot ORALTSIMIU 3J Naltaia fmWre CM1nere Na 3ga1 46' 2435' Po[ ORALTSIMIU 113 Naidretbner4fe'Lanm rime' Lanni rime NaMna 3ga1. 37-48' 3648' Po[ ORALTSIMIU O31 Cs maAbus cki.Yu DeiavaN OsMatA 3ga1. "' 4 w Po[ ORALTSIMIU ® 132 Prnu larmaasus'at. Wykai' Oft. LyMen revel 3ga1. 2534 3648' Po[ ORALTSIMIU ® 84 RimbleMmx'S,,t nb Smg' Septanba Sing Rrdb]aHm 5ga1. 5' 6' Pot ORALTSIMIU O q0 RrmA+deMmx'un,e, l iq Rih dm 5ga1. 37-48' 3648' Pot ORALTSIMIU O 4 Sa Ih caiarebunilis Sw.LL 3ga1. 1620 3648' Pot ORALTSIMIU O iW S mm msdfdia RaJ a 3ga1. 37-48' 3648' Pot ORALTSIMIU O m Te=ivnnMrtaedys G,rmaida I . 1218' 1224' Pot ORALTSIMIU OQ 55 MLvmmd idi band Wunun 3ga1. 2534 3648' Pot ORALTSIMIU O22 Mbvmm 4rus'S,., E ,d' Spirg Bin dLanss4ms 5ga1. 6e Pot ORALTSIMIU STORMNATER PLANTS QTY HOTANICALNME COMMON NAME SIZE HEIGHTPANGE WIDTH RANGE CONTANER REMARKS 17 Ana nmFSWm MI, Nape 3' Ht 1,112, 8-10' pOt ORALTSIMIU 0 4 Granas sidmfaa'KelseN' WIt,yR wig LU[Jr1 3ga1 2534 2434 Po[ ORALTSIMIU 211 Pct,b& nmun. Wertan Swad Fem 3ga1. 2534 2434 Pot ORALTSIMIU ® 12 Rb Wgamun R,d R.waing Ourtant 3,1 8-10' 68' Pot ORALTSIMIU GROJNDCOVERS QTY HOTANICALNAME COMMON NAME SIZE CONTAINER 89 PfdrotapisMS ways'Fig Bea' Hg H,erK rtwmi& flat ORALTSIMIU I XG Ragaiachio is Bea R, ORALTSIMIU 4:/J R�nus larmaasus' Mast Vami Nmnt Verten Lard igal. Pot ORALTSIMIU 33 Rudss r9ydraitles U.P, Sande 4' Pot ORALTSIMIU IRRIGATED {AVON PT TIO V�ATER LESS ECO -IAM MIX bttps:lipda S .canlcdlene.nsie wd-ata i e ams/pro ucisupt-770-w a4essxolswn PERVIOUS PAVERS RATED FOR EMERGENCY EQUIPMEM W W H W Z a KEYED LANDSCAPE NOTES: 1❑ SEE STORMWATER FACILITY INFORMATION ON L4 -L6 ❑� BIKE PARKING. SEE L9. 3 SPADE EDGE BETWEEN LAWN AND PLANTER BEDS ® LANDSCAPE EDGING BETWEEN STONE AND GRASS 5 INSTALL DECORATIVE BOULDERS PER 4 © INSTALL GRASSCRETE PER MANUFACTURER'S SPECS. EXISTING TREE TO BE PROTECTED PER LS ® APPLYAND INSTALL SEED MIX PER MANUFACTURER'S SPECS 19 INSTALL 3" MEDIUM FIR BARK MULCH IN ALL PLANTING AREAS 10 INSTALL BENCHES PER MANUFACTURER'S SPECS [illSCREENING PER 4.4-110 CALL BEFORE YOU DIG ! ONE CALL: (800) OAR 952-Q�1��03(QLiT44UGH OAR 952-001-0090 0' 10' 20' 40' structural O surveying architecture planning SCALE. V=20' i.e. Erigineeririg, im. 609 SE Pi%St Roseburg, OR IeerHgir ring.wm PN Ff Ss�0 81 11 1 PE OREGON o o � Z 9�G � qR 14 0� S R I EXPIRES. 06/30/2023 1 C O civil structural O surveying architecture planning i.e. Erigineeririg, im. 609 SE Pi%St Roseburg, OR IeerHgir ring.wm PN Ff Ss�0 81 11 1 PE OREGON o o � Z 9�G � qR 14 0� S R I EXPIRES. 06/30/2023 1 C O L3 O y Z W � z � V � Q D_ 4C co C7 Z wN CL w o S = w > ¢ 5 EE = s a � — W C.i II w L3 CHERRY SPRINGS APARTMENTS STORMWATER FACILITY LANDSCAPE PLANS & DETAILS STORMWATER FACILITY LOCATIONS INFILTRATION PLANTERS INFILTRATION RAIN GARDENS O Requirements: Requirements: Per 100 s.f. of facility area: Per 100 s.f. of facility area: a. 100 Ground Covers, OR a.100 Ground Covers, OR b. 80 Ground Covers and 4 Small Shrubs, OR b. 80 Ground Covers, 2 Large Shrubs 4 Small Shrubs c. 60 Ground Covers and 12 Small Shrubs and 1 tree (deciduous or evergreen) STORMWATER FACILITY PLANTING LAYOUTS O III 0 O O O 0 STORMWATER PLANT SYMBOLS TREES BOTANICAL/ COMMON NAME Acer circinatum /Mne Maple QAcer griseum / Paperbark Maple J✓ Anus rhombifolia /White Alder Anus rubra / Red Ader } • Populus tremuloides/Quaking Aspen SHRUBS BOTANICAL/ COMMON NAME Cornus sericea'Kelsel Kelsel Dwarf Red Twig Dogwood �o Spiraea betulifolia / Birchleaf Spirea Spiraea douglasii /Western Spirea STORMWATER GROUND COVERS BOTANICAL/ COMMON NAME Carex obnupta / Slough Sedge ® Juncus effusus / Common Rush �} Juncus tenuis / Poverty Rush Lupinus polyphyllus / Large -leaved Lupine Polystichum munitum /Western Sword Fern SURFACE FLOW TO INFILTRATION FACILITY DECORATIVE WASHED RIVER ROCK 1 "DRAIN ROCK FILTER FABRIC ,0.51 1 EXISTING SUBGRADE APPROX. DEPTH TO PERVIOUS SOIL SURFACE INFILTRATION FACILITY: SECTION A SCALE: 1" = SO " l + / L 2)SURFACE INFILTRATION FACILITY: SECTION B a SCALE: 1" = 5' Oil 1 civil ©1 1 Le OMM� �r1 Ll 1 oz m gg£ w � 5 all O O O 0 STORMWATER PLANT SYMBOLS TREES BOTANICAL/ COMMON NAME Acer circinatum /Mne Maple QAcer griseum / Paperbark Maple J✓ Anus rhombifolia /White Alder Anus rubra / Red Ader } • Populus tremuloides/Quaking Aspen SHRUBS BOTANICAL/ COMMON NAME Cornus sericea'Kelsel Kelsel Dwarf Red Twig Dogwood �o Spiraea betulifolia / Birchleaf Spirea Spiraea douglasii /Western Spirea STORMWATER GROUND COVERS BOTANICAL/ COMMON NAME Carex obnupta / Slough Sedge ® Juncus effusus / Common Rush �} Juncus tenuis / Poverty Rush Lupinus polyphyllus / Large -leaved Lupine Polystichum munitum /Western Sword Fern SURFACE FLOW TO INFILTRATION FACILITY DECORATIVE WASHED RIVER ROCK 1 "DRAIN ROCK FILTER FABRIC ,0.51 1 EXISTING SUBGRADE APPROX. DEPTH TO PERVIOUS SOIL SURFACE INFILTRATION FACILITY: SECTION A SCALE: 1" = SO " l + / L 2)SURFACE INFILTRATION FACILITY: SECTION B a SCALE: 1" = 5' Oil 1 civil ©1 1 Le surveying architecture planning Ll 1 SCALE: 1" = 5'0' WAMWA1110111 W&SHED RIVER ROCK Fill BORDER R94§§�09 20, _ •� _ rli Willi INFILTRATION PLANTER TYPICAL DETAIL NTS civil structural Le surveying architecture planning Ll oz m gg£ w � 5 all CL all lo F.11.1 cmy ""-'A'~ROusARo- q Fill o. Z INFILTRATION PLANTER TYPICAL DETAIL NTS INFILTRATION RAIN GARDEN TYPICAL DETAIL NTS civil structural Le surveying architecture planning Ll oz m gg£ w � 5 all CL all lo F.11.1 cmy q Fill Z c i a r ry irvm w a � wormoo. ® ... Ll FE wiwoo�r.weren tz a INFILTRATION RAIN GARDEN TYPICAL DETAIL NTS i.e. Engineering, im. 809 SE Pine St Roseburg, OR ieengineering.cnm %N/ G Z `v OREGON `tio C'�ggy t4 on ti AS R EXPIRES. 06/30/2023 W y H civil structural Le surveying architecture planning i.e. Engineering, im. 809 SE Pine St Roseburg, OR ieengineering.cnm %N/ G Z `v OREGON `tio C'�ggy t4 on ti AS R EXPIRES. 06/30/2023 W y H a a Ll oz gg£ w � 5 all CL all cmy q Z CL W w a � E Ll o w LL tz a ¢ yYy 6 � ¢ O 6 L4 CHERRY SPRINGS APARTMENTS STORMWATER FACILITY LANDSCAPE PLANS & DETAILS STORMWATER FACILITY LOCATIONS _ v I n n n n 1 051MOMME1,01 — INFILTRATION RAIN -GARDENS X I I- STORMWATER FACILITY PLANTING LAYOUTS cill ® O O O r_i 0 107 O STORMWATER PLANT SYMBOLS TREES BOTANICAL/ COMMON NAME 0 Acer circinatum /Vine Maple G, Acer griseum / Paperbark Maple �1✓ Alms rhombifolia /White Alder /VMl� Alms rubra/ Red Alder } • Populus tremuloides/Quaking Aspen SHRUBS BOTANICAL/ COMMON NAME Cornus sericea'Kelseyr / Kelsey's Dwarf Red Twig Dogwood Oo Spiraea betul ifoli a / Bi rchleaf Spirea 0 Spiraea douglasii / Western Spirea STORMWATER GROUND COVERS BOTANICAL/ COMMON NAME j Carex obnupta /Slough Sedge ® Juncus effusus /Common Rush OJuncus tenuis / Poverty Rush Lupinus polyphyllus / Large -leaved Lupine Polystichum munitum /Western Sword Fern civil structural Le.surveying architecture planning i.e. Engineering, im. 609 SE Pine St Roreburg, OR ieengineering.mm 081111 PNOFFSSo PEN Z 9 OREGON o O &6, t 14 EO�� y AS R - EXPIRES. 06/30/2023 law L5 01 51 ,9 20 SCALE. V= 10' 4 5 z W 6 w a2 z CL a y CM Po Z C CL y z z : 3 E 5 a L5 01 51 ,9 20 SCALE. V= 10' CHERRY SPRINGS APARTMENTS Require dents PLANTERS Per 100 s.f. of STORMWATER FACILITY PLANT SCHEDULES & CALCS a. 100Groundfity Colvers,rOR STORMWATER INFILTRATION PLANTER: FACILITY Botanical/Common Quantity Size Container EVergrecii/Deciduous Zone PANTING SOA3ME 3 Alra.demb'rfolia/Whir,Alder, _ Cornus senusa Y(dseVl'l KelsRys fMart Rw1 Twlg Dcgvlmd n 1 gar Pct Li... NR 2%S.F. TOTALTREES Spruce beulilufiu/Blrcllleal Splreu 6 Iyul. Pol Decitluous NB TREES BolaricapCommon Quantity Size Container Evergre rIDeciduous Zone Zone Container Aldus rhomb'do11a/White Nder REQUIHEU SMALL SHRUBS I" Cal. DNS Decld Lous A Ac 2"Cal . TOTALTRBES ' Quantity Size Container Evergreen/Deciduous Zona SMALL SHRUBS _ BotaNcal/Common Quantity Size Container EvergremIDe ,duous Zone A 12'C.C. Comusmnicau I'/KOISAJIsowae RAd Twig Dogwmd u 1gad Pel Deciduous NB A 19'00. Spiraeabetuliblia/Dirchleaf Spirea 6 1SO. Pet Deciduous A/D NB 12 CC TOTAL SMALL RUBLES 12 223 Pot Deciduous NB A GROUND COVERS REQUIRED SMALL SI MRS 12 Size Container EvergreeMDe ,duous Zone Spacing GROUND COVERS BotaricapCommon Quantity Size Container EVergreeNDeciduous Zone Spacing PJN I INC SCHEME B Carexobnupta/ Slough Sedge 85 1ad. Pot Cvergreer A 12'O.C. u 9 F. Juncus AD ... /lbmmor Rum '12 1gal I Svcrgmen A 12'C It STORMWATER INFILTRATION PLANTER: FACILITY C TOTAL QICUND CCV_-IIS 237 Size Container feangreeNDeciduous Zone FANTIING SCA=ME 8 June Us Of lulus/ C OFT] IT Tell Rush REQUIRED GROUND COVERS 211 I" Cal SNR Decldlnu, AB 95 `.F. STORMWATER INFILTRATION PLANTER: FACILITY B Botanical/Common Quantity Size Container EVergrecii/Deciduous Zone PJIBUNG SCA=ME3 Alra.demb'rfolia/Whir,Alder, _ Cornus senusa Y(dseVl'l KelsRys fMart Rw1 Twlg Dcgvlmd n 1 gar Pct Li... NR 125 G.F. TOTALTREES Spruce beulilufiu/Blrcllleal Splreu 6 Iyul. Pol Decitluous NB TREES BobricapCommon Quantity Size Container Evergre rIDeciduous Zone Zone Container Alplus Lure / Red! Alder REQUIHEU SMALL SHRUBS I" Cal. }NS Deciduous ANN Ac 2"Cal . TOTALTREES ' Quantity Size Container Evergreen/Deciduous Zona SMALL SHRUBS BofeNul/Common Quantity Size Container EvergreeMDe ,duous Zone A 12'C.C. SpirambAlulifolia/Blmhluaf Spirea 1 1gad Pot DecidLAUS NB A 19'00. TOTAL SMALL A (RIAS 5 23 tus. Lot Decitluous NB 12 CC REQUIRED SMALL SHRUBS 1 223 Pot Deciduous NB A GROUND COVERS BotaNcal/Common Quantity Size Container EvergreeMDe ,duous Zone Spacing STORMWATER INFILTRATION Juncus teres /Povcry1 '00 1gad Pel EVorgrccn A 12'C It PJN I INC SCHEME B TOTAL QICUND CGVCRS ' 00 Size Container Evergrean/Demduous Zone Spacing u 9 F. REQUIRED GROUND COVERS 100 Igul. Lot Evergreen A. 12 CC STORMWATER INFILTRATION PLANTER: FACILITY C Botanical/Common Quantity Size Container feangreeNDeciduous Zone FANTIING SCA=ME 8 June Us Of lulus/ C OFT] IT Tell Rush Alue,homb'rtolla/WhitRAldan 32 I" Cal SNR Decldlnu, AB 95 `.F. 2,490 SF. IOIAL MELS 1n 1 at I Fvergrem Ale"" TREES BobricapCommon Quantity Size Container Evergre rIDeciduous Zone Zone Evergreen Aldus rubra/Red Alder Cunlussericeu'Kelseyi'/Kelsays Dvurl bed Iwo Dui I" Cal. }NS Deciduous A NB TOTALTREES ' n 1car I Deoldl.ous AR SHRUBS BofeNul/Common Quantity Size Container EvergreeMDe ,duous Zone 0 a Cmn.Is seriraa'Kelseyi'/KWsajs Ilwart Hod twig l ke,uod Spirambcalifolia/Birchlu Rpirca 4 1gad Pct DecidLAUS NB STORMWATER INFILTRATION PLANTER: FACILITY P M TOTAL SMALL A (RIAS 1 Quantity Size Container feangreen/Deciduous Zone Spacing REQUIRED SMALL SHRUBS 4 '00 1 a I FvergrRen A GROUND COVERS Botanical/Common Quantity Size Container EvergremiDeciduous Zone Spacing A2 Juncus AD ... /iQu,iRug# I6 Igad Pel EvcrtJmcn A 12'CIt DRr.d loos TOTAL QICUND CCV _IIS 7E - IOIAL CHDONU CCN?i 224 AIR 1 Lal. REQUIRED GROUND COVERS /d a Iyul. RIT01PREO GRENM (MFRS 224 STORMWATER INFILTRATION PLANTER: FACILITY D - TOTAL SMAI 19RRUR9 18 A 120C. P AV TING 9CHFMFR Lupinus polyphallus/ LargeIIILupine Re REQUIHEU SMALL SHRUBS C Deciduous ARE 278 SF. GROUND COVERS Botanical/Common Quantity Size Container Evagreen/Deciduous TREES Botanical/Common Quantity St. Container fen rgreen/Deciduoue Zone Aldus dare lluliu/While Nder _ 2"Cal. SNB Decitluous NB TOTAL IRFFS SMALL SHRUBS Botanical/Common Quantity Size Container EVergrecii/Deciduous Zone F ATITIN G 9CH _MFF Alra.demb'rfolia/Whir,Alder, _ Cornus senusa Y(dseVl'l KelsRys fMart Rw1 Twlg Dcgvlmd n 1 gar Pct Li... NR 276 G.F. TOTALTREES Spruce beulilufiu/Blrcllleal Splreu 6 Iyul. Pol Decitluous NB TREES BofariciihCommon TOTAL SMAII STRIPS 19 Container Evergreen/Deciduous Zone Zone Container Acer yF,ap II',perbuk Maple REQUIHEU SMALL SHRUBS 12 3NR Jecitlucus A Ac 2"Cal . GROUND COVERS Bolarical/Common Quantity Size Container Evergreen/Deciduous Zona Spacing Botanical/Common Clue%uLUU,1u/Slcuyh Sedge 100 Iyul. PUT Evergreen A 12'C.C. C .a Y(ds y' !K its Rwart Rad Tvng Dngvlmd Juncus,enols/prverta Rus- '00 1car Pct Fru,,, an A 19'00. GROUND COVERS Bobnical/Common Lupinus polypingus/Lugo srved Lupine 23 tus. Lot Decitluous NB 12 CC Spruce redulilulhir/UrstilecilSplreu TOTAL (R2DdD CMI -RS 223 Pot Deciduous NB A 12" O.C. TOTAL SMAII STRIAS HEQUIHEU GHQUMJ COVERS 223 1 gal. Pot Evergreen A STORMWATER INFILTRATION PLANTER: FACILITY E 12 1 gal. - Pol Docidueus AIB PJN I INC SCHEME B Botanical/Common Quantity Size Container Evergrean/Demduous Zone Spacing u 9 F. Care.RLxUplu/Slcuyh Sedge 35 Igul. Lot Evergreen A. 12 CC TREES Botanical/Common Quantity Size Container feangreeNDeciduous Zone Uecidunls June Us Of lulus/ C OFT] IT Tell Rush Alue,homb'rtolla/WhitRAldan 32 I" Cal SNR Decldlnu, AB 2,490 SF. IOIAL MELS 1n 1 at I Fvergrem Ale"" NB SMALL SHRUBS Botanical/Common Quantity Size Container Evergrean/Dsciduous Zone Evergreen A/6AN Cunlussericeu'Kelseyi'/Kelsays Dvurl bed Iwo Dui 6 Iyul. Pat Decitluous NB STORMINATER INFILTRATION Spruce hetullfolia/Rlrchleal Spirea n 1car I Deoldl.ous AR Qu.m!Ly PANTING SO EMC J IOIAL SMALL SHWAS 12 Zone 6 0 a Cmn.Is seriraa'Kelseyi'/KWsajs Ilwart Hod twig l ke,uod 3113 S F. REQUIRED SMAII SHRURS 12 Uecidunls Api STORMWATER INFILTRATION PLANTER: FACILITY P M GROUND COVERS Botinical/Common Quantity Size Container feangreen/Deciduous Zone Spacing Carexohnupfa/9lopgh9.i '00 1 a I FvergrRen A 19'00. Ju u'1 i 'uvelyl i. 100 igul. Pct Lveryreul A2 CC Botanical/Common Ire pI4P1^ILs/I. g -leaved lupine 94 1Dal. PRt DRr.d loos AR 19'0 C. - IOIAL CHDONU CCN?i 224 AIR 1 Lal. Pot Spruce beulilufia/Ulrcldeal Spires a Iyul. RIT01PREO GRENM (MFRS 224 _ - TOTAL SMAI 19RRUR9 18 A STORMWATER INFILTRATION PLANTER: FACILITY L Quardity Size Container Evergreen/Deciduozz Zone F ATITIN G 9CH _MFF Alra.demb'rfolia/Whir,Alder, _ 1 2" Cc Uecidunls Oociduoto A 276 G.F. TOTALTREES 1 A So Sea bell / Birchleof Spired TOTAL LARGE SHRUBS 1 gal. TREES BofariciihCommon Quantity Size Container Evergreen/Deciduous Zone Zone Container Acer yF,ap II',perbuk Maple d eCul. 3NR Jecitlucus A Ac 2"Cal . TOTAL Iffil 8 1gal. Pot Deciduous AIB SMALL SHRUBS Botanical/Common Quantity Size Container EVergre ra Deciduous Zone SMALL SHRUBS Botanical/Common C .a Y(ds y' !K its Rwart Rad Tvng Dngvlmd 4 1 gal. Pct position, NR AIB 12"00 GROUND COVERS Bobnical/Common Qu.nttiy Size Container Evergreen/Deciduous Zone Spacing Spruce redulilulhir/UrstilecilSplreu S tus. Pot Deciduous NB A 12" O.C. TOTAL SMAII STRIAS 12 1 gal. Pot Evergreen A 12'OG REQUIRED SMALL SHRUBS 12 1 gal. - Pol Docidueus AIB GROUND COVERS Botanical/Common Quantity Size Container Evergrean/Demduous Zone Spacing 12. OC. Care.RLxUplu/Slcuyh Sedge 35 Igul. Lot Evergreen A. 12 CC 45 Juncus Rflusus/Gene'. 1 '44 1car I Rotor. A Uecidunls June Us Of lulus/ C OFT] IT Tell Rush Lupinus pulypir,lus I Lmymleavetl Lupine 32 1us. Pot Decitlueres' NB 2,490 SF. Pare,finhum mlminlm /WeFtern 3wdrd Fern 1n 1 at I Fvergrem Ale"" NB 12.0 C. I0IAL(iiO11NU COVERS 221 36 1 gal. Pot Evergreen A/6AN REQUIRED OREUM COVERS 221 IOIAI GHOUNDGOVI RS 988 17 STORMINATER INFILTRATION PLANTER: FACILITY M _ o w REQUIRED GROUND COVERS 288 Qu.m!Ly PANTING SO EMC J Container EvergrernMeciduous Zone 6 0 a Cmn.Is seriraa'Kelseyi'/KWsajs Ilwart Hod twig l ke,uod 3113 S F. (gel- I'of Uecidunls Api STORMWATER INFILTRATION PLANTER: FACILITY P M TREES Botanical/Common Quantity Size Container EvergreeMDeciduous Zone Acer guseum/Papsbark Maple 13 2"CaL 3NB Occiduous A 302 3 F TOTALTREES REQUIRED SMALL SHRUBS 13 SMALL SHRUBS Botanical/Common Quantity Size Container li ergreeNDecidreus Zane Container Evergreen/Deciduous Cnrnrls sencRa Y(dseyi'l KelsR}Is 1T.vart Rwl TVAg Drxlvlmd - 1 cal. Pct pearl AIR 1 Lal. Pot Spruce beulilufia/Ulrcldeal Spires a Iyul. Pot Deciduous NB _ .gal- TOTAL SMAI 19RRUR9 18 A 120C. Lupinus polyphallus/ LargeIIILupine Re REQUIHEU SMALL SHRUBS C Deciduous ARE 12" O.C. GROUND COVERS Botanical/Common Quantity Size Container Evagreen/Deciduous Zone Spacing Dune, oboplu/Slough Sevlgs 35 tus. Pol Lveryreen A 12'C.C. .Uncus effuSs/CmmnnI I 1n7 1 a. Pre Evergreen A 12'0 C. Lupous polyplryllus I Large coetl Lupine 32 1 1yul. Pct Deciduous NB 12'O.C. Pare,ichlmmnnre/Western Sward Fern 10 1gal. I Evergreen A PM 19'0 C. IOINL G1QUNU C(NLHS 244 REQUIRED GRCl/NO COVERS 244 Quantity Size Container Evergreen/Deciduous Zone b. 80 Ground Covers and 4 Small Shrubs, OR c. 60 Ground Covers and 12 Small Shrubs STORMWATER INFILTRATION PLANTER: FACILITY N I'I AN IINGSD II MI IS 3553F INFILTRATION RAIN GARDENS Requirements: Per 100 s.f. of facility area: a.100 Ground Covers, OR b. 80 Ground Covers, 2 Large Shrubs 4 Small Shrubs and 1 tree (deciduous or evergreen) TREES Botanical/Common Quardity Size Container Evergreen/Deciduozz Zone _ Alra.demb'rfolia/Whir,Alder, _ 1 2" Cc Uecidunls Oociduoto A 1 TOTALTREES 1 A So Sea bell / Birchleof Spired TOTAL LARGE SHRUBS 1 gal. Pot SMALL SHRUBS Botanical/Common QuaMfty Size Container Evergreen/Doclduous Zone Container Conus saicra Kolsoyi' / Kdxys Dwarf Red Twig Dogwood d 1 gal- Pot Deciduous Ac 2"Cal . SPaoe buluriloria l BilcNeal Soiree 8 1gal. Pot Deciduous AIB Botanical/Common UTAI SMAI I SI ILIUMS 16 Container Evergreen/Deciduous Zone SMALL SHRUBS Botanical/Common REQUIRED SMALL SHRUBS 15 Container EvergreeryDeciduous Zone AIB 12"00 GROUND COVERS Bobnical/Common Qu.nttiy Size Container Evergreen/Deciduous Zone Spacing Gerex Mlnupta / Slglgh Sense 88 1 gal I'M I verge'. A 12" O.C. Juncus tenuis/ Poverty Rush 158 1 gal. Pot Evergreen A 12'OG Lp,,,TB Pul�ryllus/ Holds -leaved Lupine 28 1 gal. - Pol Docidueus AIB 12'OG Pdystichum munitum /Western Sword FOR 10 1 gal. Pot Evergreen A/B/W 12. OC. TOTAL GROUND COVERS 284 Zona Spacing Por Ca: ex obnupta! Slough Sedge 45 RI QUIRI I J GROUND HOW HS PIE Evergreen A 12 OG Uecidunls June Us Of lulus/ C OFT] IT Tell Rush STORMWATER INFILTRATION PLANTER: FACILITY O _ Guam" Size Container EvergreenNeciduoas Zone _ PLANTING SCHEME B 2"Cel Pef Uecidunls A TOTAL TREES 1 ANIS 350S IF A So Sea bell / Birchleof Spired TOTAL LARGE SHRUBS 1 gal. Pot Deciduous A/R TREES Botanical/Common Guardity Size Container Evergreen/Deciduous Zone 1 2"Cd- Alnusr„bm/Red Alder 1 2"Cal . BNB Deciduous AMI Pnt I eargai IOIAI ILIUS Botanical/Common Quantity Size Container Evergreen/Deciduous Zone SMALL SHRUBS Botanical/Common Quantity Size Container EvergreeryDeciduous Zone AIB 12"00 Cumus BoUl'KJS.yi' / Keleavu LAvml Red Twig Dug_wuud 10 1 gal. Pot Docidueus AIR ND 12"OC. Spread befull a Fuuhleat Seurat T 1 Rol- Pet 1BCILIncre Apt A 12" O.C. TOTAL SMALL SHRUBS 17 212 A/II EW 12" O.C- GROUND COVERS Botanical/Common Qual Y REQUIRED SMALL SHRUBS it 242 Zone Spacing P 9 PEQUIRED GROUND G'O'.'ERS Cards neonate/ Slough Sedge 96 GROUND COVERS Botanical/Common Guardky Size Contalrer Evergraen/Doclduous Zona Spacing Por Ca: ex obnupta! Slough Sedge 45 1gal. Pot Evergreen A 12 OG Uecidunls June Us Of lulus/ C OFT] IT Tell Rush /g 1gal. Put Evergreen A12"O-C 2,490 SF. Juncus tenuis l Poverty Rush 128 1gal Pot Deciduous NB 12.0 C. Lupinus polyphyllus/ Large -leaved Lupine 36 1 gal. Pot Evergreen A/6AN 12'OG IWciduous IOIAI GHOUNDGOVI RS 988 17 Y EES TOi _ o w REQUIRED GROUND COVERS 288 Qu.m!Ly Size Container EvergrernMeciduous Zone 6 0 a Cmn.Is seriraa'Kelseyi'/KWsajs Ilwart Hod twig l ke,uod II (gel- I'of Uecidunls Api STORMWATER INFILTRATION PLANTER: FACILITY P M So sea beWldoliu/ Birchleaf Spirea 2 1gal. Pot Residual PLANTING SCHEME 6 TOTAL SMALL SHRUBS 13 302 3 F REQUIRED SMALL SHRUBS 13 TREES Botanical/Common _ Guam" Size Container EvergreenNeciduoas Zone Alnlxc'hnmbilolial White Aldnr 1 2"Cel Pef Uecidunls A TOTAL TREES 1 ANIS 6 A So Sea bell / Birchleof Spired SMALL SHRUBS Botanical/Common Guardity Size Container EverginamuDeciduouer Zone All rhombifolia/Whit, Alder 1 Ce're1s sadraa'Kelsey//KOIsaySIMert(led twig l legvvood 12 (gel- I'of Usciduoos ANIS 6 A So Sea bell / Birchleof Spired TOTAL LARGE SHRUBS 1 gal. Pot Deciduous A/R Quantity Size TJTAL SMALL SHRUBS 1/ Zone Cornus sencea'Kelseyi' / Kelsey's Dwarf Red Twig Dogwood Alnusmbra/Red Aldo, 1 2"Cd- BNB i N QUIRI U SMAI I Sr IRIlI t,9 17 IOIAI SMAI I SI ITUMS TOTALTREES 1 out Pnt I eargai GROUND COVERS Botanical/Common Quantity Size Container Evergreen/Deciduous Zone Spacing Zone Carex ubnuple/Strugh Sued. 94 1gal. Pot Evsrganl AIB 12"00 Ca ex ubnupB/ Slnlgh Sedge Juncuseftusr/Cgnmon Rush 118 .gal- Pct Evergreen ND 12"OC. TOTALSMALL SHRUBS Lupinus polyphyllus/ Large -leaved Lupine 30 1 gal. Pot Decus iduo A 12" O.C. 9 IOIAI GIIOUNUCOVI IIS 212 A/II EW 12" O.C- GROUND COVERS Botanical/Common Qual Y Size REQUIRED GROUND COVERS 242 Zone Spacing P 9 PEQUIRED GROUND G'O'.'ERS Cards neonate/ Slough Sedge 96 1get STORMWATER INFILTRATION PLANTER: FACILITY O A 12"OC. Cornus sericea Xodeyi' / Kelsey's Dwarf Red Twig Dogwood Juncus eftusus/ Common Rush 83 1gal. Por PLANTING SCHEME B A Sp raeA tinturtholualNnrhlRat Spirea upiml5 polyphylbx/ I arge-leaved I Lein 24 1 gal - I let Uecidunls 3F TOTAL SMALL SHRUBS TOTAL GROUND COVERS 203 2,490 SF. TREES Botanical/Common _ Guam" Size Container Evergreen/Deciduous Zone Anargrisaum/1'apnbarkMaple 17 2"Cel - I'of Uecidunls Atli IWciduous A TOTALTREES 17 Y EES TOi 25 o w SMALL SHRUBS Botanical/Common Qu.m!Ly Size Container EvergrernMeciduous Zone 6 0 a Cmn.Is seriraa'Kelseyi'/KWsajs Ilwart Hod twig l ke,uod II (gel- I'of Uecidunls Api 3 M So sea beWldoliu/ Birchleaf Spirea 2 1gal. Pot Residual A/R TOTAL SMALL SHRUBS 13 REQUIRED SMALL SHRUBS 13 GROUND COVERS Bobnical/Common Quantity Size Container Evergreen/Deciduous Zone Spacing Carox ubnuplul Sedge 82 1 Lal. Pot Ev.panl A 12" OC. Juncusuffit./Common Rush 67 .gal- Pct Evergreen A 120C. Lupinus polyphallus/ LargeIIILupine Re 1 gal. Pot Deciduous ARE 12" O.C. I ldystichum munlfuer I Western Svnrd I ern 33 1 gal Pct I verguren NR/W 12" 2C. TOTAL GROUND COVERS 245 REQUIRED GROUND COVERS 24i STORMWATER INFILTRATION PLANTER: FACILITY R PLANTING SCHEME B 132 S.F. TREES Botanical/Common Quantity Size Container Evergreen/Deciduous Zone Alnusrubra/ Red Alder 1 2" Ca BNB Deciduous A TOTAL TREES SMALL SHRUBS Botanical/Common Quantity Size Container Evergreen/Deciduous Zone Cents sencea Kelsey,' / Kelseys Daorf Red Twig Dogwood 4 1 gal. Pot Deciduous ARE SP aoe bull Birchleal Spirea 2 1gal. Put Docidueuu AIB TOTAL SMALL SHRUBS c REQUIRED SMALL SHRUBS 6 GROUND COVERS Botanical/Common Quamky Size Container Evergreen/Deciduous Zone Spacing Cards obnupta/ Slough Sedge 68 1gal per Evergreen A 12"OC. edusus/ Common Rush 28 1gal. Por Evergreen 12 OG TJul IWBSiP.m GWllnr Prn Ig gal Ps, VP.rfy]mrrl All TAlchllmmllnlrllm TOTAL GROUND COVERS O 106 REQUIRED GROUND COVERS 106 - jIII�ATIIIII I STORMWATER INFILTRATION PLANTER: FACILITY S Quantity Size Container Evergreen/Deciduous Zone PL OTING SCHEME All rhombifolia/Whit, Alder 1 2" Cal RED I� ,. 1 2103E 6 A 12"0.C. TOTAL LARGE SHRUBS b0 TREES TREES Botanlcal/Common Quantity Size Container Evergraen/Oeciduous Zone Cornus sencea'Kelseyi' / Kelsey's Dwarf Red Twig Dogwood Alnusmbra/Red Aldo, 1 2"Cd- BNB Oociduous A IOIAI SMAI I SI ITUMS TOTALTREES 1 out Pnt I eargai A 12" O.G. SMALL SHRUBS Botanleal/Common Quantity Size Container Evergreen/Daelduous Zone GROUND COVERS Botanleal/Common _ Ce;nus sencea Kelseyi' / Kel�ys Dmmf Red Twig Dogwood 6 1 gal. Por Deciduous A/E Ca ex ubnupB/ Slnlgh Sedge Sp' aea bslulilolia/ Birchleal Spirea 3 1HR. Put Docidueus AIB Juncus effesus! Cgnmon Rush TOTALSMALL SHRUBS _ _Pot Evergreen A, 12' O.C. POVsfinhum mundum / Wastern Stand I ern REQUIRED SMALL SHRUBS 9 PUT I eargai A/II EW 12" O.C- GROUND COVERS Botanical/Common Qual Y Size Container Ever reen/Deciduoua 9 Zone Spacing P 9 PEQUIRED GROUND G'O'.'ERS Cards neonate/ Slough Sedge 96 1get Por Evergreen A 12"OC. Cornus sericea Xodeyi' / Kelsey's Dwarf Red Twig Dogwood Juncus eftusus/ Common Rush 83 1gal. Por Evergreen A Sp raeA tinturtholualNnrhlRat Spirea upiml5 polyphylbx/ I arge-leaved I Lein 24 1 gal - I let Uecidunls µ9i TOTAL SMALL SHRUBS TOTAL GROUND COVERS 203 2,490 SF. PEQUIRED SMALL SHRUBS REQUIRED GROUND COVERS 138 W TREES Botanleal/Common Quantity Size Container Evergreen/Deciduous Zone STORMWATER INFILTRATION PLANTER: FACILITY T PLANTING SCHEME B 15581. TREES Botanical/Common Quantity Size Container Evergreen/Deciduous Zone Alnusrubra/Red .Nder All rhombifolia/Whit, Alder 1 2" Cal RED Redduous ,. 1 IOIAI IPi I S 6 A 12"0.C. TOTAL LARGE SHRUBS b0 TREES SMALL SHRUBS Botanical/Common Quantity Size Container Evergreen/Deciduous Zone Container Cornus sencea'Kelseyi' / Kelsey's Dwarf Red Twig Dogwood 7 1 gal. Pot De, dUOLla AB Spacing IOIAI SMAI I SI ITUMS 7 1 out Pnt I eargai A 12" O.G. REQUIRED SMALL SHRUBS 7 1gal. Pot Eyelglen, A 12"0.0. GROUND COVERS Botanleal/Common _ Quantity Size Container Evergreen/Deciduous Zone Spacing Ca ex ubnupB/ Slnlgh Sedge 29 1 get Put Ev spOen A 12" OC. Juncus effesus! Cgnmon Rush 85 1 gal. _Pot Evergreen A, 12' O.C. POVsfinhum mundum / Wastern Stand I ern 1C I gal. PUT I eargai A/II EW 12" O.C- TOTAL GROUND COVERS 124 to 10 Pot Deciduous SMALL SHRUBS PEQUIRED GROUND G'O'.'ERS 124 Size Container Evergreen/Deciduous Zone IEOULRED GROUND COVERS Cornus sericea Xodeyi' / Kelsey's Dwarf Red Twig Dogwood 30 PLANTING S'CH EME B 150 S F - TREES Botanical/Common Quantity Size Container Evergmen/Deciciuoue Zone Alnusrubra/Red .Nder 1 2" Car BNB Deciduous AW TOTAL TREES 1 TOTAL SMALL SHRUBS 6 A 12"0.C. SHRUBS Botanical/Common Quantity Size Container EvergreeNDeciduorrs Zone PLANTING SCHEME B Cornus sericea'Kelseyi/ Kelsey's Dwarf Red Twig Dogwood 6 1 gal. Pot Deciduous NB 1,537 S F TOTAL SMALL SHRUBS 6 A 12"0.C. TOTAL LARGE SHRUBS b0 TREES REQUIRED SMALL SHRUBS 5 Size Container Evergreen/Deciduc ue Zone Container GROUND COVERS Botanical/Common Quantity Size Container Evergreen/Deciduous Zone Spacing CA'ex oh.upte / Siough Sedge 90 1 out Pot I eargai A 12" O.G. June us eftusus/ GC111rTIOR Rush b/ 1gal. Pot Eyelglen, A 12"0.0. Lipinus polyphyllus / Large -leaved Lupine 12 1 gal. Pot Deciduous AB 12" O.C. Polystichum mundum / Wastern Swnd I nn 21 1 gel. Put I vngeser Al Ew I2" () O. TOTAL GROUND COVERS _ 120 1gal. Put Deelduous A/B U REQUIRED GROUND COVERS 120 123E 1245 1 gal. Po[ Evergreen is 00r1hl UTAROI SIIHIIIIS STORMWATER INFILTRATION RAIN GARDEN: FACILITY 7 civil Quantity structural Le surveying architecture PLANTING SCHEME B planning 5gal. BNB Deciduous Carox obnupta/ Slough Sedge 598 1,537 S F Pot Evergreen A 12"0.C. TOTAL LARGE SHRUBS b0 TREES Botanic l/Common Quantity Size Container Evergreen/Deciduc ue Zone Container Populustremuloides/Quaking Aspen 16 1,51 Go BNB Dec duous A Put TOTAL TREES 16 12"O. G. 1 gal. O _ Lip nus polyphyllusI Large -leaved Lupine REQUIRED TREES ld Pot Deciduous AIR _ 12' O.C. LARGE SHRUBS Botanic IlCommon Quantity Size Container Evergreen/Deciduous Zone 10U ArIc,,noiretum/ViriMapin 9 5ga1. Pot IMgduque AlI'ArV Size SpLaead_wglasl/Weston. Spirea 22 1gal. Put Deelduous A/B U TOTAL LARGE SHRUBS 31 123E 1245 1 gal. Po[ Evergreen is 00r1hl UTAROI SIIHIIIIS 91 to 10 Pot Deciduous SMALL SHRUBS Botanic IlCommon Quantity Size Container Evergreen/Deciduous Zone IEOULRED GROUND COVERS Cornus sericea Xodeyi' / Kelsey's Dwarf Red Twig Dogwood 30 1 gal. Pot Deciduous AB Sp raeA tinturtholualNnrhlRat Spirea 32 IBM Put IMc'dllouS All TOTAL SMALL SHRUBS 62 2,490 SF. PEQUIRED SMALL SHRUBS 32 W i.e. Engineering, its. 809 SE Pine SI Roseburg, OR ieengirleering.ssm BRED PROFESS 5 , / v Rj 811E/PE -2a `v OREGON o EXPIRES'. 06/30/2023 GROUND COVERS civil Quantity structural Le surveying architecture Zone planning i.e. Engineering, its. 809 SE Pine SI Roseburg, OR ieengirleering.ssm BRED PROFESS 5 , / v Rj 811E/PE -2a `v OREGON o EXPIRES'. 06/30/2023 GROUND COVERS Botanic VOommon Quantity Size Container Evergreen/Deciduous Zone Spacing 5gal. BNB Deciduous Carox obnupta/ Slough Sedge 598 11 Pot Evergreen A 12"0.C. TOTAL LARGE SHRUBS b0 TOTAL SMALL SHRUBS _ REQUIRED LARGE SHRUBS 50 Size Container Evergreen/Deciduous C SMALL SHRUBS Botanical/Common Juncus aftosas/Gnomon Rush 019 1ga1. Put Evergreen A 12"O. G. 1 gal. O Deeiduous Lip nus polyphyllusI Large -leaved Lupine 19 34 Pot Deciduous AIR _ 12' O.C. IOIAI SMAI I SI PH118 n Pot IUTAI 1290 12"O.C. REQUIRED SMALL SHRUBS 10U GROUND COVERS Botanlcal/Common Quantity Size Container Evergreen/DeGtluous Zone Spacing Co-sraInupte/Slough Sedge 184 1gal. U Nongreen REQUIRED G.C. 123E 1245 1 gal. Po[ Evergreen A, L p nus polyphyllus/Large-(paved Lupine to 10 Pot Deciduous A/B T.)TAL GROUND COVERS 1992 - OJ IEOULRED GROUND COVERS 1992 or 0 STORMWATER INFILTRATION RAIN GARDEN: FACILITY 3 PIANIING8CI IMI R Cal 2,490 SF. Z W TREES Botanleal/Common Quantity Size Container Evergreen/Deciduous Zone Populus hemuloides/(lualang Aspen 25 1 5 Gal. HER IWciduous A Y EES TOi 25 o w m i x` 5 r M LJJ CY o oc 6 0 a N � 4 I ¢ 3 M REQUIRED REQUIRED TREES 25 LARGESHRUM Botanical/Common Quantity Size Container Evergreen/Decitluoro Zone Acer cuoinatum/Vine Maple 5 5gal. BNB Deciduous IVB,W Spimea d_ouglasi/Wastern Spirea 45 1gal. Pot Deciduous AB TOTAL LARGE SHRUBS b0 TOTAL SMALL SHRUBS /2 REQUIRED LARGE SHRUBS 50 Size Container Evergreen/Deciduous Zone SMALL SHRUBS Botanical/Common Quantity Size Container Evergmen/Decidmm Zone Cumus Burin.. Kelsey, / Kelsey's- Dwarf Red Twig Dogwood do 1 gal. Spacing Deeiduous A/B Spiraca hetulitolia/ Birchleaf Spirea 34 1gal. Pot Deciduous A/B IOIAI SMAI I SI PH118 100 Pot Evergreen A 12"O.C. REQUIRED SMALL SHRUBS 10U GROUND COVERS Botanlcal/Common Quantity Size Container Evergreen/DeGtluous Zone Spacing Co-sraInupte/Slough Sedge 184 1gal. Pot Nongreen A 12"O.C- Juncus of el Cgnmon Rush 1245 1 gal. Po[ Evergreen A, L p nus polyphyllus/Large-(paved Lupine 263 10 Pot Deciduous A/B T.)TAL GROUND COVERS 1992 IEOULRED GROUND COVERS 1992 or STORMWATER INFILTRATION RAIN GARDEN: FACILITY PL4NTI NG SCHEME B TREES Botanical/Common Quantity Size Container Evergreen/Decitluous Zone Papulas hamuloidas/Oualting Espen 18 1.b "Cal. BNB Dec duous A TOTAL TREES 18 32 1gal. Put Deludllollfi PI QIIIRi D IRI 1 S 111 TOTAL SMALL SHRUBS /2 LARGE SHRUBS Botanical/Common Quantity Size Container Evergreen/Deciduous Zone Ace- circinature/VineMai 4 51 Pot Due LRJs A/B/'N Size Container Evergreen/Decitluous Zone Spacing Caexubrlu In SlW Ir Sed e / p U U 4bl SO Food dglg a. I / Western tiRuO a 3i eat Put � W.cldlloll9 AM TOTAL LARGE SHRUBS 36 Pot Evergreen A 12"O.C. REQUIRED LARGE SHRUBS 36 SMALL SHRUBS Botanical/Common Quantity Size Container Evergreen/Deciducus Zone Cornus sericeu'Kelsey7 / Kelseye Dwarf Red Twig Dogwood 40 1 gal. Pot Deciduous AaB Splraea traturtiolla/ I hrr:hlnat Bpnea 32 1gal. Put Deludllollfi f'y'1 TOTAL SMALL SHRUBS /2 REQUIRED SMAL SHRUBS 72 GROUND COVERS Botanical/Common Quantity Size Container Evergreen/Decitluous Zone Spacing Caexubrlu In SlW Ir Sed e / p U U 4bl 1 al. g LOT E,so reel) N A 12 CC Juncus of(usus l Common Rush 884 1gal. Pot Evergreen A 12"O.C. o nUnus pnlyphyllus I large -leaved upinR 105 1 gal. Put Dou'duous A/R 12" O.C. TOTAL GROUND COVERS 1,440 REQUIRED GROUND COVERS 1,440 Q E y £ V � G Y d o s all Q y or Cal Z W ( Y � o w m i x` 5 r M LJJ o oc 6 0 a N � 4 I ¢ M Stormwater Planters Operations and Maintenance Plan Stormwater Planters are designed to allow runoff to filter through layers of topsoil (thus capturing pollutants) and then either infiltrate into the native soils (infiltration planter) or be collected in apipe to be discharged off-site (flow-through planter). The planter is sized to accept runoff and temporarily store the water in a reservoir on top of the soil. The flow-through planter is designed with an impervious bottom or is placed on an impervious surface. Water should drain through the planter within 3A hours after a storm event. All facility components and vegetation shall be inspected for proper operations and structural stability. These inspections shall occur, at a minimum, quarterly for the first 2 years from the date of installation, 2 times per year thereafter, and within 49 hours after each major storm event. The facility owner must keep a log, recording all inspection dates, observations, and maintenance activities. The following items shall be inspected and maintained as stated: Downspout from rooftop or sheet flow from paving allows unimpeded stornawater flow to the planter. • Debris shall be removed routinely (e.g., no less than every 6 months) and upon discovery. • Damaged pipe shall be repaired upon discovery. Splash Blocks prevent splashing against adjacent structures and convey water without disrupting media. • Any deficiencies in structure such as cracking, rolling, and failure shall be repaired. Planter Reservoir receives and detains storm water prior to infiltration. Water should drain from reservoir within 3-4 hours of storm event. • Sources of clogging shall be identified and corrected to prevent short circuiting. • Topsoil may need to be amended with sand or replaced all together to achieve a satisfactory infiltration rate. Filter Media consisting of sand, gravel and topsoil shall allow stormwater to percolate uniformly through the planter. The planter shall be excavated and cleaned, and gravel or soil shall be replaced to correct low infiltration rates. • Holes that are not consistent with the design and allow water to flow directly through the planter to the ground shall be plugged. • Sediment accumulation shall be hand removed with minimum damage to vegetation using proper erosion control measures. Sediment shall be removed if it is more than 4 inches thick or so thick as to damage or kill vegetation. • Litter and debris shall be removed routinely (e.g., no less than quarterly) and upon discovery. Planter shall contain filter media and vegetation. • Structural deficiencies in the planter including rot, cracks, and failure shall be repaired. Overflow Pipe safely conveys flow exceeding reservoir capacity to an approved stormwater receiving system • Overflow pipe shall be cleared of sediment and debris when 50% of the conveyance capacity is plugged. • Damaged pipe shall be repaired or replaced upon discovery. Vegetation shall be healthy and dense enough to provide filtering while protecting underlying soils from erosion. • Mulch shall be replenished at least annually. • Vegetation, large shrubs or trees that limit access or interfere with planter operation shall be pruned or removed. • Fallen leaves and debris from deciduous plant foliage shall be raked and removed if build up is damaging vegetation. • Nuisance or prohibited vegetation shall be removed when discovered. Invasive vegetation contributing up to 25% of vegetation of all species shall be removed and replaced. • Dead vegetation shall be removed to maintain less than 10% of area coverage or when planter function is impaired. Vegetation shall be replaced within a specific timeframe, e.g., 3 months, or Appendix 3A-4 Page 13 of 31 EDSP Adopted December 03, 2012 imme diately if required to maintain cover density and control erosion where soils are exposed. Debris and Litter shall be removed to ensure storrawater infiltration and to prevent clogging of overflow drains and interference with plant growth. Spill Prevention measures shall be exercised when handling substances that contaminate storrawater. Releases of pollutants shall be corrected as soon as identified. Training and/or written guidance information for operating and maintaining storrawater planters shall be provided to all property owners and tenants. A copy of the O&M Plan shall be provided to all property owners and tenants. Access to the storrawater planter shall be safe and efficient. Egress and ingress routes shall be maintained to design standards. Roadways shall be maintained to accommodate size and weight of vehicles, if applicable. • Obstacles preventing maintenance personnel and/or equipment access to the storrawater planter shall be removed. • Gravel or ground cover shall be added if erosion occurs, e.g., due to vehicular or pedestrian traffic. Insects and Rodents shall not be harbored in the storrawater planter. Pest control measures shall be taken when insects/rodents are found to be present. • If a complaint is received or an inspection reveals that a storrawater facility is significantly infested with mosquitoes or other vectors, the property owner/owners or their designee may be required to eliminate the infestation at the City inspector's discretion. Control of the infestation shall be attempted by using first non -chemical methods and secondly, only those chemical methods specifically approved by the City's inspector. Acceptable methods include but are not limited to the following: i. Installation of predacious bird or bat nesting boxes. ii. Alterations of pond water levels approximately every four days in order to disrupt mosquito larval development cycles. iii. Stocking ponds and other permanent water facilities with fish or other predatory species. iv. If non -chemical methods have proved unsuccessful, contact the City inspector prior to use of chemical methods such as the mosquito larvicides Bacillus thurengensis var. israchensis or other approved larvicides. These materials may only be used with City inspector approval if evidence can be provided that these materials will not migrate off-site or enter the public storrawater system. Chemical larvicides shall be applied by a licensed individual or contractor. • Holes in the ground located in and around the storrawater planter shall be filled and compacted. Appendix 3A-4 Page 14 of 31 EDSP Adopted December 03, 2012 Rain Gardens Operations and Maintenance Plan A vegetated Infiltration Basin or rain garden is a vegetated depression created by excavation, berms, or small dams to provide for short-term ponding of surface water until it percolates into the soil. The basin shall infiltrate stormovater within 24 hours. All facility components and vegetation shall be inspected for proper operations and stmchual stability, at a minimum, quarterly for the first 2 years from the date of installation, 2 times per year thereafter, and within 49 hours after each maj or storm event. The facility owner must keep a log, recording all inspection dates, observations, and maintenance activities. The following items shall be inspected and maintained as stated: Basin Inlet shall assure umestiicted stormwater flow to the vegetated basin. • Sources of erosion shall be identified and controlled when native soil is exposed or erosion channels are present. • Inlet shall be cleared when conveyance capacity is plugged. • Rocks lash pads shall be replenished to prevent erosion. Embankment, Dikes, Berms and Side Slopes retain water in the infiltration basin. • Structural deficiencies shall be corrected upon discovery: o Slopes shall be stabilized using appropriate erosion control measures when soil is exposed/ flow charnels are forming. o Sources of erosion damage shall be identified and controlled. Overflow or Emergency Spillway conveys flow exceeding reservoir capacity to an approved stormwater receiving system. • Overflow shall be cleared when 25% of the conveyance capacity is plugged. • Sources of erosion damage shall be identified and controlled when soil is exposed. • Rocks or other armament shall be replaced when only one layer of rock exists. Filter Media shall allow stormwater to percolate uniformly through the infiltration basin. If water remains 36-49 hours after storm, sources of possible clogging shall be identified and corrected. • Basin shall be raked and, if necessary, soil shall be excavated, and cleaned or replaced. • Infiltration area shall be protected from compaction during construction. Sediment/ Basin Debris Management shall prevent loss of infiltration basin volume caused by sedimentation. Gauges located at the opposite ends of the basin shall be maintained to monitor sedimentation. • Sediment and debris exceeding 3 inch in depth shall be removed every 2-5 years or sooner if performance is affected. Debris and Litter shall be removed to ensure stormovater infiltration and to prevent clogging of overflow drains and interference with plant growth. • Restricted sources of sediment and debris, such as discarded lawn clippings, shall be identified and prevented. Vegetation shall be healthy and dense enough to provide filtering while protecting underlying soils from erosion. • Mulch shall be replenished as needed to ensure healthy plant growth • Vegetation, large shrubs or trees that limit access or interfere with basin operation shall be pruned or removed. • Grass shall be mowed to 4"-9" high and grass clippings shall be removed no less than 2 times per year. • Fallen leaves and debris from deciduous plant foliage shall be raked and removed if build up is damaging vegetation. • Nuisance or prohibited vegetation (such as blackberries or English Ivy) shall be removed when discovered. Invasive vegetation contributing up to 25% of vegetation of all species shall be removed. • Dead vegetation shall be removed to maintain less than 10% of area coverage or when infiltration Appendix 3A-4 Page 15 of 31 EDSP Adopted December 03, 2012 basin function is impaired. Vegetation shall be replaced within 3 months, or immediately if required to control erosion. Spill Prevention measures shall be exercised when handling substances that contaminate stormwater. Releases of pollutants shall be corrected as soon as identified. Training and/or written guidance information for operating and maintaining vegetated infiltration basins shall be provided to all property owners and tenants. A copy of the O&M Plan shall be provided to all property owners and tenants. Access to the infiltration basin shall be safe and efficient. Egress and ingress routes shall be maintained to design standards. Roadways shall be maintained to accommodate size and weight of vehicles, if applicable. • Obstacles preventing maintenance personnel and/or equipment access to the infiltration basin shall be removed. • Gravel or ground cover shall be added if erosion occurs, e.g., due to vehicular or pedestrian traffic. Insects and Rodents shall not be harbored in the infiltration basin. Pest control measures shall be taken when insects/roderts are found to be present. • If a complaint is received or an inspection reveals that a stormwater facility is significantly infested with mosquitoes or other vectors, the property owner/owners or their designee may be required to eliminate the infestation at the City inspector's discretion. Control of the infestation shall be attempted by using first non -chemical methods and secondly, only those chemical methods specifically approved by the City's inspector. Acceptable methods include but are not limited to the following: i. Installation of predacious bird or bat nesting boxes. ii. Alterations of pond water levels approximately every four days in order to disrupt mosquito larval development cycles. iii. Stocking ponds and other permanent water facilities with fish or other predatory species. iv. If non -chemical methods have proved unsuccessful, contact the City inspector prior to use of chemical methods such as the mosquito larvicides Bacillus thurengensis var. israchensis or other approved larvicides. These materials may only be used with City inspector approval if evidence can be provided that these materials will not migrate off-site or enter the public stormwater system. Chemical larvicides shall be applied by a licensed individual or contractor. • Holes in the ground located in and around the infiltration basin shall be filled. If used at this site, the following will be applicable: Fences shall be maintained to preserve their functionality and appearance. • Collapsed fences shall be restored to an upright position. • Jagged edges and damaged fences shall be repaired or replaced. Appendix 3A-4 Page 16 of 31 EDSP Adopted December 03, 2012 STORMWATER MANAGEMENT FACILITY INSPECTION AND MAINTENANCE LOG Property Address: Inspection Date: Ins ection Time: Inspected By: Approximate Date/Time of Last Rainfall: Type of Stormwater Management Facility: Location of Facility on Site (In relation to buildings or other permanent structures): Water levels and observations (Oil sheen, smell, turbidity, etc.): Sediment accumulation and record of sediment removal: Condition of vegetation (Height, survival rates, invasive species present, etc.) and record of replacement and management (mowing, weeding, etc.): Condition of physical properties such as inlets, outlets, piping, fences, irrigation facilities, and side slopes. Record damaged items and replacement activities: Presence of insects or vectors. Record control activities: Identify safety hazards present. Record resolution activities: Appendix 3A-3 Page 1 of 1 EDSP Adopted December 03, 2012