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Home My WebLink AboutNotes Applicant 10/30/2024rEN1A1IVE PART IT10N VIR The Oregon Fund LP Dc�cument aat*: ARRIICirWj R,@gU@gt; Pr"M Owrtar/ Appkibnl 06/28/2024 Appruval of .Z-U}t Tentative Pirtltion Plan The Oregon Fund LP 4710 Village Loop Plaza, Suite 100 Eugene, OR 97401 Surveyor- Rp n Eri ck snnr PLS E GR & Associates, Inc. 2 5 35 R Prairi a Road E ugenp, OR 974111 Subject Property- Lacati on_ Propertk Slm; zoning; Co mprehens itre P Ian-, N umb er of Parcels Proposed Sl zc P r oposed parcel 1: Size Proposed Panel Z- Asses5a's Map 17-12-�O-�4 Tax Lat 35p 1 1417 � 1-1 Street Springfield, OR 9747R Q, �Q acres (13. Q62R sq, ft j LDR ( Low De nslty Residentlal) Low D P. nsity Res identia I (per Metro Plan) 2 5,6570 sq ft 5r217 sq f# (p xr-4-udirkg panhandl e) 7,117 sq ft (includirtE paahandl e) Pd _rt 11 Revision Notes details of this partition: 1. The impervious area of the revised plans fall well below the 5000 sf which would eliminate planning for a 25 year flood event. Information referring to planning for a 25 year flood event is struck by this Note. 2. Both lots will access their respective utilities from the Right of Way and no easement is required for this purpose. Information referring to utility easements is struck by this Note. 3. Each lot will have its own driveway and so no access easement will be needed. Information referring to a common driveway and an easement for its use is struck by this Note. 4. Each lot will have its own soakage trench and each driveway will have a center crown which sheets water to native grassy soil or growing medium. Information referring to shared stormwater facilities is struck by this Note. Further each lot has approved building permits based on this application. 1423 31 st: 811-24-001697-MD and 1427 31 st: 811-24-001923-MD 5. The original plans provided by the surveyor calls for garages, shared driveways, soakage trenches, utilities, etc. New site plans which which became part of the building permit application are attached. When this application is submitted, the surveyor will change the current plans to match these revised site plans. Background The applicant I s propos i ng to partition one (1) .30 acre parcel into two (2) parcels, Asse ssor's Map & Tax Lot 17-02 -30- 34-03 501 (the "s u bjcct pro perW ), Is located on 31 t Street n ear 0I}rrnpl c Sheet, The existing parcel is vacant, the rc a re no cxl stl rkg dwei Iings or structures. Howevcf, th e City of SpiirkgfI a Id Piann Ing staff appfovcd o plan allowing the p rope rty owne r to place a manufacturcd hom e o n proposed parce 11 cone ui rently with this Tentative Partitl on Appl leadon. Uilpmately, a ne manufactured hpm a is proposed to Abe placed Dn ea ch pa reel. The 5!uhje rk prope rty is I ocated i n the Springfield Low Density} Reside rrda I (L D R) zone whi ch permits de'relp pment vF 6 to 14 dwellings per net acre- Th a proposed Tentative Pa rtiti on Plan wil I deve lop 2 dwel I ings pp. r . 9 a a cres w hirh m eqt5 the deinsiity regtji rement.5 (i-$ un its mini r tjm are requi red). Al I proposed development will meet the s iti ng regtjirem ents and crit4-ria specified for LDR zoned single-farnily residences as specified in 5DG 5erdpn �t-17-125. Thi3 written statement intends W rJearly de rnonFbaire for pity staff review how tfie prep used Te ntative Partit ion Pla n wi H conform W all standa rd5, regv latipn5, and conditions (if Land Divisigm under $DG 9.12 -11$ Tentativ� Plan — Ge neraJ; 5DC S.12-120 Tentative Plan 5ubm ttal Requirements: and Si)C 5.12-125 Tentative Plan Criteria. The 5wringfiOd DevelOpmfnt Code (SDCh tkxt Sections are indicated by dark blue text, bold arWof italic typeface; Applitarrt's responses are indicated bw black text and plain tWeFace. SOC S+i Z-i 15 Teri tative Plan — General Arpy residrenrioo farrddivision shad! conform to ttwfoflowing standards, A. Ttw fotlparset dirwnsiorrs shuilronfosrrn to the mr nimvrn srandurds of this Cv-de- Wtwn lots parcels ore more rhan double the minimum areapermiffed byr thexanirrg district, the.0irsectarsh-WO require that these lotslparceis he crf"rtw; 2. T00;;0 rr&diV ai0n; and 7. To WJow for the extensionni at5twets to serve futarr 6tsiporneh. 3, PkMzMernt of s trurivr 's orr to ftpOrDwrrf by the Vrrectar croon a derermination that tine potential moximurn densiryof the forgeriotfporrei is not rmparred- On order to anlwke dp4 de:errnirnn;iorr, the Dre,etor rrwy regl0m a Amore 0W,re0opment Man as speclied in $ertiorr S. Z2.3 . Tax Lot 3501 is zDried LDR (Lour Density ResidentialM and designated LD (Law Density Residential) on the Metro Plan, and located on a north/South sbreet. The proposed parcels will conform to the minimum standards as Sperlfied For LDR (Lcrw Dwsity Rftidential� development, -Neither propwad paeM will exceed the doubm rtlirrirliurlA reagvired area far LDR 5ingle-farnityf homes on NarCh/Saudi greets 15,MO 5f), nQF LDR single-farniIV homes on Panhandle Lots 14,500 sf]. Pa rr.El 1 is pfQposed at 5,67D sq fr- Pa Mel 7 is pmpased at 5,217 sq fL (9xd uding panhan&n �; 7,117 sq ft I int lud iFV parnhandl-2)_ These criteria are met, P-M.F C 12 B. DouWe frontage torsfpormeb shu&rbe avafded, unjess neressury topriewent orress to residential development from cailec for and ar-ter!.W streets or to averwrmw specrfrc tapagraphic situatnarrs The proposed parcels will emniorm to the minimum standards as specified far LDR (Law Density Residential) development. Street frontage of the proposed parcels will not eNceed double the rnirnirnum required for LDR sirgfle- femiIV hornes on Morth&uth mem {60 ftM jnd for L❑R Single-farnily hi?me5 on a Panhandle Lot(20 ftj. strc-et frontage for Pa rcO 1 o proposed at 60 feet. Street trorEtage tar Parrel 1 is propcised at 113 feet. These criteria are meet. C. FacharmUe �PWparrek shO ronWi1y wO the standards Wc#ied in 55tctlorra 3.2.235 cmdC2.1204, ttz the rafeof ffmitip{e panhandks in Sub&viskmrn , ronsmwfia,n 4 necessary rr h ties to wrv4-- ark uppravrd panhandlde kyWparreh% .5f 0".Wr poor to raecorddng the Mot - Complying with 5K �.2-215 and $DC 4.2-12OVA, ParceIs 1 and 2 wi11 have driveway Krg$5 via a $hargd 2Cr wide easement, rrieetirkg panhandle frontage requirements as well as standard lot rnanfmax driveway width requirements. These criteria are me[. .D, B;oi* +rrrrth for Oxci Sbr efs is as specyied in SecVorr 4.2.105 .4, 4. FOOCk jNs!qth pnd 9+o+ck PEYjRVfer, a- Shock perimeter for gll gfr"f rAa.Sslfjratipns mtaf npf ex a fhg fiptlowing rn.PxiriWm:F, except as p videdtmexemptedeIsewherein this Code or in an appficoble RefrnenFent plan Ov PkW Disfrkt. !. 2,400feet irl mixed use Ws+rich CPAsisterrt wa h vamdards In secr;ons 7, 2-62Sr H, Mxfeet}n In"FWjoning dff#r e"; fJJ- 2,400feet fr muW-.wnrt den4op Fentjubject to Section 3,2- one( iv. L&N feet in other rdnirrg &Orltt:. Pewonse; The proposed ierrtatkve partition Plan utllires an exlsting street network. This code sectlon Is not applweabile. land BA4-viorw- Tentative Purr 5mibmittal 5DC 5.12-120 A Teri fWove Mw� appA wtJOA fhCrh contoin the &kmats rneremory to derrrarr$trote MW thepr visiom of lOis Code are being f rr#oArEd. EKCEP77014r in the rase of Partrlion appiicirriu is LWrh the sGk intent to donate rand to a publk dgerxy, the iWrerzar, during the Pre-Submf ttW Meerrng, may wcrivc any submitto+ requlremerrb thor can bf' addressed as pad of a future dei.eeloprrrer5t iYp#ticotron. PR.Fa 13 A. -G-erterd'l 3- The Tentative fiian, inCii.W dingar?W JF4!eFVtVre O+eVe1Q9A ar+[ play, 5h.P10 bePrePared byan Oregon+ Iicernsr'-d prof.P{sioma0 d and. 'LrrveVar 0r? sMrrdmd sheiets of I$" x 24"- TYa -serv,ices of an 0mgor? tkenfed Professionai' €ngirreer r ay also be required by the City in *rde,r to resaive utBOtlr issues #especiailily stormwater morrogrrF ent s#rtet dts igrF and frorrsporto[iort rmts), and s;tit constrarrtt cmd/or wafer quaRK imuex, The Te ntative Su hdiw is ion DIa n has been prepafed by Ryan Eris kson, PLS of EG R & Assooiatesr and E rir Favreati• p.E, of Fmeau E ngIne.:�rirlg,-easurlrng this plan has adequate lyr a nd co rnprehensiwe IV address all sta ndairds and regUirementS of this Code, Including stormwater management, street design, and site constraint{water quality issues, .2- 7We scale*f the TentiTrlwePilarF sWlbe PpWopdare W the ama InvoWd and the arnomt*jfeetalianarBator narrrmPy I " = 50, I"= 10'r OF I" =2Q0', The scab of th a Tent atlwe ela n Is I" = 24': wl7lch Is appiroprlate to th a slie of the deYel opmerit sl to a nd the amount of data needing to he shown. 3• A rror th armw and the doze the Tentative Man wms prepur-•a, A north arrow and date aria included an the plans that are indudled with this applicat on. 4, Ttw rtame and Fps of the owner, oppkant #r dVferertt, and OW tared 5-urveyar and/or Erngineer rwh* prepared the Pariiaan Tentative plan. Property Owner: The Oregon Fund LP Applicant: Monkey Hero LLC, 42941 Leaburg Drive, Leaburg, OR 97489 Land Surveyor: Ryan Erickson, PLS of EGR & Associates Engineer: Eric Favreau, P. E. Also see Tentative Plan drawing set. 5- A drawing of the tii;t+ndopries of theentke area Awned by theparfitioner0r5: w4i-drwWer of WKCA the ppop&mdland divisive is a port. A t hie ker, black Mine I s drawn a roan d the subject pro perky to easi IV show t1he are a owryed by the part it iorw r C3- City boundaries, the Urban Growth Boun dory (.V6B) and any &pedal s frvtiire -district boundaries orrailroad rlpht•o)L way, which trips or Cr rf the proposed Oorrd division. No city Ii m it, U G ES, or rai Irvad right s-of -way a re adjacent to the subje It property. 7. Appl rQb4e rviFting diltrio# artd the Metro Mari detignotion of fhL-imposed faraddivi ;im and &I prop crtivi within 100 fiver of the boundary of the subjet t propeny. The subod property i s Spri nkgfid d LDR (Lan Density} Reside ntialj and de signs ted L I Law De nsityr Resi derrti alb in tha Metro Plan. Pag a 14 8. Tie L1;Mte'.MSi0fJ5 fir feet) fff?d size rMher irr sgtware fit or dcr'es) of each lotlporeo and the 000rox;s"CYfe dirnensians of each building site, where app kubie, an d dw top and toe of rur and lift 50ope5 ro scale. Tlit proposed parcel slzes aind dinnerrsions of each building sit-e are el early labeled on the T-entative Partition Plan drawin.E set. .�. The racation, outline to scale orndpresenr upepf gflexisting strtdawraff to remain on the property after platting and their Fequired setbacks front the proposed rMew proper }+ Hnes, Thefe are oo existing structures on the property. iCL The 6cafkm and size of exisrrrng arid proposed utrrrries and necessary easerrrEnts and dedications an and adjacent to the site, incOudiog but not rimired to sanirory sewer mains, stormwo ter mmnagei en t sys terns, woter power, gaSr telephone, ondcabie TV. rrrdleate the pro edconnectionpaints. All exist irtig a nd p rapomed uti lines and Cannedtian poi nts, and n ecessa ry easements are i ndicated an the TentapwgPartition Plan cirawirkg sett. I]_ Fhe 0acations widths and purpose of all -axis tiny arproposedt4merrwats on and abutting the proposed land division; the facatiorr of any exining or proposed mr-erwne strips. All pu hlic a nd pri gape prQpaspd ea5*m eats are Ilea rly i nrdicated on the Tentat iwe Partitipn Pla n drawing fit. J 2- The iocaWns of oll atireas to be efedrevted or reserved Aw xw0ic use, with the �w rme, conerition or lirnitatkms of the resenootions clearly rrndicated. There are no are -as being dedicatend or reserved for put, it rise. This re�,urrernent is Aot aipplleable, SL A 5iW Assessment of the Fadre Devek?prnmt Area. The Site Assessmwrrt shag be prepared bV an Oregon Licensed landscapeArcNuct or frwpineer and dawn to Feaoe w1th ex)SOng contom at I}) -or Inter F and pt ncent of 5foae the t i$ely mgp5 and de lmeateF the amp:F de#crrb,ed below. Aa€ed rnodr}kn[0*es tophysfcalfeMr+es shaOf he crearfV Indimtedr The Wrector rttap waivepMians of this requkement if there Is a fin&tg that the proposed devtie*menf wW not have an adverse �mparr orr physical features -or wager q"afity, either on the site or adjacent to dw ske. inforrnntfon regWiredform(JmentMpertles nwvbe ge"rahred toshom+ the carrwrium to phWca0fevtmw A Site Assessment shoe torten the ow;eq ir7 rtrt�trdtirJ. The Site Assessme nt of t he su h jest pro perty wa s performed by Ryan E ric L%,w, PLS. and E ric Faweau, P-E- of Favreau Engineering, and includes all the General Requir-emenu, Site A5sessubent items, and $tOrrnwater items, gee attached T"tative Subdivision Plan drawing set. 1. Me napft, ioCaOam' dlmea5ions' direction of flow on$too of bank of all Watercourses that ore shown On the Water Quality Urnfte Warercvvr Wqw) Map or? f Je in the Development SerOeef Deportmen t; There are rra watt rcourses shown on the Watev -Quality Limited Watercourses flap that encumber the subject property; thl5 reclu Irernent Is not a ppllcabl e. Peg a Is 2. The I00year t0aodpiarn and ffoadway boundaries on the site, as specified in dw iarev a dopted FEr► A Flood arnsurarnce Maps or €€MA approvtied Letter -of Map Amendment or totter of Map Revision, The sub*t property i s IDcated nutsi de of t he 500-year i laodplai n a nd tloodw ay boun da ries as i nd ica tad o n FIR M Map hlvrnber 41039C1 ] 151F do led J une 3, 1 : this requirement is not apol it a ble. 3. The Time of Trtneei Zones, ers Wclfied Orr Sectlar? 3.3•200 and de4ineated art ttw Wellhead PmtectaorM Areas Map orr;hle irn tine DeweJoprnen r Service Oeparrrnen�; Tht subjlert property falls withiD the 2-year Tirne of Travel wne for Wellhead PFOWL Dn. 4. Physical fearares irwNding, bat not Um ted to significant musters of rrees and shrubs, wotereours-es show" *n the (W.EQ W) Mqp pnd ttr,-rr rrppreow areas, wtiand& and r5?i�.k pipt-cr.Qppiagi- r TThelre are np dv5ters QF trees and shrubs, waterruvrses and riparian areas, wetlands, or rock Qvtcri�ppings vmhin the bounda ries of the rwbjeet property. 5. Wf types and water tcrbie information os rrrapped arrd sperijtie+din the Sams Survey of Lane CaLinty; and The Natural Resource Conserua tion Service (NFCCS) Yweb 5oi I Sutwey+ i Mrrakes the soi I tyrpe covering the subject pri2pertw oonsists. of one -hundred percent (10D%6 Malabon-Urban land cn-rnplex, with a depth to water table of more than 80 irK-hes, An infiltration test was perfarrned by Eric Favreau, P.E. -on 11/16/2021. The infiltration rate was Conserwatrvehv determined to be appraximately ZC"{hfr. Th arefare, per Mr. Faurcau, for design purposes, it wilt be assumed that infiltration rate will be 1111hr. �_ Igvtr�ra+re�uroe prat�rtia,n areas as speei}�� ins S�ciiarn There are ni) natural resauroe prQt` Ctian areas present on the subject property. C. A SwnmmwAdvnogement ftrr wn to scale v th existing ronto+uri at fmc Inte"05 anorpe tU/#fie that p, ediely maps arrd addrems the kijbrma km described bel�wr. I.* arms wham the Aetcent &Y sly is 20 Peme"I or ,,lore, tontaars rrPUY &-- shWwn nt 5 f of inferw�r_ 7h& Jhm shfffi shCW th,e storrrnwotrr nw nw3ement Sys teMPr tine -errtlre�kv+eoagment area, Unk3s exempt by rile Pu&k Wwks #raectow, the Vlyshaitrequire that an Onegarp fdcwmed G0 €noirme r prepare the pAm. %0mm a plarits we pmpased as pawl of the stoma rw4ver m anage men [ sys tem, art Dregarn Licensed Land'srape ArchIrm may o6a be regrured_ The pion shaH irfcWe the fiol fowirng components: 1_ Raof drainage potterns and diwharge keotkwu; 2_ pervnoas and irnperviou� area drainage patterns; 3_ The size and tocatinn ofstormwater marnager"Entsysterns components, inriusding but Fwtlimitedto: drain deses, Cock �Crsht5, dry+ we06 aodlordete-mVor?ponds, stormwinfief qualify CrsuJ*$r and riot -wail diraFn - wway+s to be retained; 4. Existing and proposed site elevations, grades and contours; and pag a 16 5, A 5t0ef Mwatee M00FhVeFftrtt 5y5t&tr part Mth 5-lJPPorVM9CdatW5 arm 6afliMerWrtiors 05 regctrred irF Section 4.3-13OshoiJ bye submitted supporting tine prapasedsystem The pdar4 cmcaiationts onid a4ixmentatroan shall be consistent with the frngineefing AesOgns Standards imd Procedures Manual to 00w 5 tcrff todetermF -Me �f the Vro s.ed stormwater rr06*;reMMI 5YSteM Will ace ll�kh i'ts PUrPosps. Edit Favrea u, P.E., has designed t he stormwater managem ant system pla n Al itirlg two proposed soakage tre riches within the driveway, with pne Ion-0 on pane I one 5ized at 12' x 8' x T' and one I t-eci on pa rce 1 two siz2d at 16' x Y x 7, aswell as two soakage trench wregetatlon (grassy) ribbons running Iengthwilse at ST x 3' on the shafed drnreway+_ The plart calculations, and d0tumentation ar-2 pr&rrided in detail an the T4MtatiY-2 Partition plan drawir% set as Well aS F,@parate lyt k r else of review bye city Staff. D. A Respwm fo rrorrWfti ban hirsues campOldnq With the proasWf of Deis Code- 1_ The locatians condition, e. g-, Ptly irnpri3ved rdth curb, gutter acrid sidewaJk, AC rant, or grovel, widths and rmmes of 00 exist;m)r streets, a4leysr orothef r4hn-of way waWn oT adjooenr to the Proposed!-Ortd division; The subort property, has fnanmge On 31" Street_ There is an.2xistir* 61I' right•ofLWay on 311k St, with 35' of paved roadway . There is rro exlsting curb, gutter or sidewalk, 2_ The l"atiorrs, w*Mj and nanmF vjFa;f propomdstmeo and a ther fights -of -way to OmlcOe the Qppraximate radius of rueves and yradm The reationship of ag proposed streets to any projected stree is as shown an the Metm plan, hickmffng Ow TransAWFP, a."y approved Concep[rm! Development Pfan and the We st version of the Corweptual' tokca+ Street Merw There are no proposed streets or other rights•of•wayr adjacent to theAabjel L properly. 3, The locations and wldfhs of ail exlst+t arid proposed sia�ewolks, pedes tdorr tro4s averaccess wa vs, incfLr ny the iacof6w4 size and tWe of plantings and wreet trees in any regarredpfanterstrip; Them are Ab elxisting or proposed &idew.AI ., pedu&triaft wails - end act sways. 4. The location al existirng and p rapased trolric control devices, fire hydmrrts, paw: er pates, tronsf ormers, neighborhood mailbox knits pnd simi.tarpabiiz fimXtia's, uuirere appiicahae; A.5 i ndirated in the 'Notes' 5eaipn ¢f the Tentative Pa rtit ion Plan drawi ng set, the neam st Fire hydrant i s locarted approxim ateIV 242 beet north of the Northwest <orner of the subject property. power pole locations a re shown. fee attached Tentative Partition Plan dranwring set for farther details. S_ The locatian and dimensions of exis[irrgundproposed driveways, where applicable; The site plans as attached show individual driveways for each property. Pug a 17 b. The !oration of existirrg andproposedstreet rfghtirng_ inrdudirr,g the rype, height orpd oreo of iffumirratiorr; All exist irkg st reel lighting; i nd udi ng ty pc and I uminal re height, is irrd Icat-ed orw the Tentative Pa rti ti on plan drawing set. No additional streetlights are propMed. 7. The locathm of exisfinq =dpmp*5ed transit fed Hties; Thy UWLKt tuff#it fa blityr is located an the *mouth Midi2 of Olympic Street w*st Of 2:glfi St rest and served by Lane Transit Dist rKt (LTD) Route 19. Sr. A COPV of* Right•01•wcpy Approorit PrrttitcropU ilort wh" the property has "ittogie oo art ClregNmi Oepartment of Transportation (ODDT) fariiity; arnd 31st Street is a city street and does not have frontage on an OOOT faciIitV. SM_ A FrQfTit impac r Srudy prepared by a Traffic En gfnPer, ► here necessary, as sperfNd in Section 4_2-105AA Based on the Institute of Transporrtation Erigineer€ (ITE) Trip Ceneraocin Manual, tlth Edition, sitkgle-familyf �gtached hvii,ises. have are ewer ge trip R�rbera#i4n rite of 9-44vehirle$ daily pnd .99 peak hQuir tirip5. ASirgleAprnily dwelling on each of the two parcels proposed generating 5.44 trips per parcel per dtyr results In fewer peak hour or average daily trips necessary far a Traffic Impart Analysis to be r-EquiMd_ F. A Fature AewcloorrWat Puri. Wit -ore pins rt!� orFdfor X0tJ1pCrCC;5 Owt tare more thorf twrxeft tint Minimum lotlporwi si.le are 0mosed, tine Tentative Mart shop irtc;ude o FWtUre Sewe;0VMertt J3iaA that; No Ftjtvre Development Plan is neces,;M as neither proposed parcer exceeds twice the minimum area requirement. F_ Additiornat injwma-t+arw anndloropplications required at the tfrne of Tentative Pion apptfraticin sahffl&UJ shad irndvde the M;om4r?;f deems, where opplicabk 3. A brief norraUYE LKpii: ning tine p urp ose o f the proposed land division and the cxrsfrn g use o) the property The purpose of this proposed two -parcel partition is residential use. A single-family dwelling will occupy each new parcel. The entirety of this document serves as a written narrative explaining the purpose of the proposed two -parcel partition and the existing use of the subject property. 2_ tf the apprrrant k n+ar the property own Per, written permissf-on from the property aw Tier fs required; The attached applkati on form is signed by the property owner, 3. A Vicinity Map drown to sole showirFy bars steps, streets, driveway% pedes trkn ronrnections, }ire hydrants rs andntber rmnspor ta6omffirfe access issws within 200 feet of the proposed iland divisfon and al+ existing Parr#r'liorts or 5ubdiwisians immedoolOy odiorent to fife proposed nand divisrart; A vad nrty m ap I s show n -on the Pro posed Teplatirve Pa rdti are Plan drawing set, 4. Haw the Tentative Plan addresses the smadards of aril+ app•1icable awerlay district; There are no cmerlay districts applicable to the suhjett prop". S. Hd3wr the Tentative Man addresses Dist fetronary Vse criteria, whefe appircable; 5ingle-Family residlential is a permitted use in SpriVield LDR [tow Density Residential]. No Discretionary Use Permit Is fequlfed, 6. A Tree Felling Permit as specified rrr Sectivrr U9-100,1 No "a s wi II be felled as apart of this appli m ti on. 7. A Geataehnicof dapoart f br slopes of 15 percent c r greater and as specified in Sectran 3.3 -WO, vrrd/or if the mWdred 519c Aldmjrm,ernt 5-1-21208- OTPdrevteF the pr.OpMed OLVVefopfflefr[ (PrM hV5 0"SMKe sash andlar t4h water toWe as sp,c6fre,arin the 501 Swwy of Lane laarmtlr; No GeotechnIcal Report is required as the subjecl property consists of slopes less than 5 , NRCS Soli Classification maps identify this site as having Mass C Sails. Soil Type Malabnn-Urban land ramplex #716. The soil is well- �raining 5Qil ijUal f9r uf�an den lopment. The depth to wpter Wbae is more than RO inches. See attached Infiltration Test performed by Erir Favreaur PE. & Arr Arrnexativn oppi4cotran as specoped rug 5ectiorr S,7100whero a dri+elopnTenr r$ propase-doutsrde of the city limin birt wfthin Oty's urtran growth bounrdfory and Carr be serviced by sanitary sewer; The suNect properki is located wlthi n the Spfi np, Fi eld City II mits, 9- A wLarkrnd detineatoorr approwedby tte department of State tarrds shallhe submitted concurrently wrbere there Is -a wetfamdon tote proverly; There are no existing wetlands on the swbject GfOperry 10. Evidence that arry requir-rd Feder-al orState perrnit has twen oppfied for-urappraved .5h&J be submifted Mrm.urfentrl+; No Federal or State permits are required with, this Tentatioe Pattltion application, 11 Ai+puNic OnTrawemeptspmMedra be instaile,dcmd to+"clude the gppra6nwre time of insrafbtion and mehad of financing; There are no proposed pul�Iic improoements with this GfaR-osed G,3rtl#ion appiic.at+an, J I Pno paLse�d and a dr0ft of a.HRmeawnef s As5-o[+ariorr Agreem ii where appraiprlate; No deed r-astlietiont (t Honli�o wrli�r's AsWelatl on s -are proposed - Pug a 19 13. ClusterSubdivJsions shohraisa address the design standards specified in Section 3.2230; This application is for a Tentatiw-2 partition and not a Cluster Subdivision. 14, Whom the SubdiwJsiorw of a man ifacrwed dwelling park ormobile home park is peupased, tPW Dim"Ormay Waive eeaoirr subrrrftfol regerleemerpts s,�e��fitd aft 5erbsrcfiof�s A. thr*vgIh M. However. the Tenta w P(an shag address the appHcobie standards iisred under the park Subdivision appm wai criteria specrfred in 5r°cfiarr 5.33- 3 25- This a ppl ication i s for a Tentative partition and not a ma ntifarr#tired dwe III np Fop rk or mobi le home park Subdivision. Me Drfrew 5hmi` appmvr ar appmwe Mth corra4tions a TeM tative Phan opod aam upon defef irirrtsg that.09 appficahLe criteria have been satisfied. I conditions canrnot be n1lach-ed tv satisfy+ the apprawat criteria, the Director shall decry the appiUcation. irp the case of PvrtiTroons that rrawAe the donaliorr of land to a pvbfk ogeri+cyr the Difemw may wo�we, arty .P,p,praaal rdWFW 4J90n rfnrning tfW PWdCuJar Priteriasn can tv addr med a5 purt of o Ivrore 4-,rre,'opnwrrt upplicotioi. A, Tfw request rarrforms to the provisions cyf this Code perzarrprng l2 hWpaircelsfie and dnrnens tin& The 5ufsW property is located ark a North -South strut, Proposed Parcel 1 falls under the criteria requirements of a single-f arni ly dwelling in tDR zoning on a North{.$ourth $Ueet. Proposed Parrel 2 falls unde-rthe criteria requirements of.3single-farnllyr dwelllrkg on a Panhandle lot. See below for speciflcdetails for each oafcael. tot Size: The minimum lotfparceO size fora Standardloron a Jlrorttrf$gtr#i is � Fgft- Me minimvrrr latf pamelsize fora panhandle lot is 4,Stl[ksq ft_ Proposed parcel 1 is a Standard Noirth/5ourth parcel and meets requirem-Ents at 5,670 sq ft. PFQ ed Panel 3 i5 a Panhandle L�t and meet requinVrrtien# at 7,117 5q ft(irKladirr8 panharrdleMr 5,217 5q ft leKW'n$ pa nhandle). tot Ffontoge. Tire mirrrrrwrrr street ffantage far totslParceJs an a Northl5auth street is Oft. The rrriMm rrn street frontage regarred for 0�arr�rax�dfe �are� �sopt- Prod parcel i has 50 t Of WULL frontage. Proposed parcel 3 has 20ft of streetfrDnEage. PM24: Jim & The tarring is consistent with the Metro Plan diagram andfo,r apphcahle refinement Pan diagram, pion District r310p, *ad corveptuatvevetopment PhM The Toni ng of the subject properly I s Low-Densltyr Re€i demial. I n the M etro Pla n, this a rea is de€igrrated as Low-Den5ity Re5identiel. The minimum density in the LDR wne is 6 uniu per acre and the maximum i5 14. The proqG5ed devcloprnent is 2 units per . 30 acres, with the requi rernen t helm at least I.S units. C. Capacity requimments of puhiic and private faciiidies, including but not limited to, water and eiertricity -samile w sewer and stormwasee rwnagemernfaciflOesr and streets amd Craf}iesafetw conmjs shalo not be excee+de4 and the public improve menu shalt bye ovoitab,fe tip serve the site at the time Of devetopm ent, ordess ofherwise p ovided for by this Code Ondottwr app�cawe regLAUfiarps. The ftWk Works Vrreclor or a Wttrtp pro0dershoii determirre cop adrVissues. Capacity wequifements of public and private facilities street and trafficsafety controls will not be exee+edq2d. No p4ihlic; impFvvemenU i0r�e pF4pQ5i�d- 0- The proposedio"d division shaft compfy with aflappkcabte public arrdprivate design and canstrurriorr standards can toured if? this Code and other appiicahle regaiations. The pro posed Tentative pa rtltlo n Nan steal I comply with all appllrabl a public and private design and construction standards -contained in this SDC. and all applicable requirements. and regulations. �M&&dual best FW 11nifted ro. steep Anm with ansfabte soil Vr lteolook CMa*WF, Oreos wFtb sr�sc trb,7it o fdooafisri ; st rtf rrt tr�sterx trees and shrw&; w9terWmr5es sh-Uwrn OFM the WQilir MOP and their associated npariorF oreasr, other riparian areas and wretfands WcIJ e,d in Section 4,3-3I7; route outcroppings; open spares; amdareas of Nswic and}oor aorrfraeoro&W 5;VWfi orwe, as may be specified r'n 3ectAu" 3L3-9W or ORS 57, 740-760, 35r.505-955 and 3 .235-240, sumo be proleassperifiedin this Code or In S we er Fedee& lawn. There are no sgn1ficam physleal feat ures on the subject pfoperty . F ftrking areas and in9rrss•eRress paints huye been desi.grae+d to foaitafe vehicular traffic, Wrycle arrd pesdestriansafety to avoid congestion; pFovrde connectivity vvir n the devefo, Went area anarW adjacent resole-Ht&aa areas, 04054 000-5� rrelghb-PeN adacti'LOY terfters� Oind 17omffler6ai, industrial andiubAc We= minirrrize drikewraVs on arteriaf arrd m40ctar streets as specified in this CDdie Or Other oppiicoipte regidirt oFK5 and comply with the DOOT access ma"agemerrtstandards for State highrwairs. See the attached site plans for ingress -egress points and parking areas. PM24: 1lu C, -Developrmrtt of any fefflodder of the proper t� ufl�der fhe Scrrrae aw+der5hip tort be COCCOMOAhed v-S weified +rt this Code. The applitarnt atknow lur-dgc-n. -and accepts the terms under this modltion, H- ,4dIcKer+tAax of can be demfoped or;sprc%Mded=ejs that wVlvl;ow Its develaprvof as gmelfled in tds Cove. All adjatem laind is dev hoped. This erftrion Is not applicable. P. where the portitlon -of Provemy that is outside of the city limits b-wCwftiF? the Coo's urbuitizabie-area a-md me concurrent ar mzirriarr oppiication is suhrrritted, the standards specified below shcrii clse appOy. Tilt propoSed dewdup mt n L i� wi Lh 1 M t he SpriA9f ield City lirfii ts, J. Where the Subdi05iorr of Q rrran-uj47czured dweffing park ormabnre h+DrFw park fs praposed, fine fi?frowing 43pprQvaf rrrtR69 apply_ This tents live part ition is not pa rt of a mean ufartumd dwe IN ng park or mobile hame park. Page 12 1417 315t St, SPRINGFIELD INFILTRATION RATE November 16, 2021 SITE CHARACTERISTICS The site is a vacant lot with mowed grass. NRCS soil classification maps identify this site as having Class C soils. DETERMINATION OF INFILTRATION RATE One test hole was dug onsite in the approximate location of the proposed stormwater facility. The test hole was dug approximately 9 feet deep. Ground water was not encountered. Bar run material was encountered at approximately 8 feet deep. The infiltration rate was conservatively determined to be approximately 20"/hr. Therefore, for design purposes, it will be assumed that infiltration rate will be 10"/hr. FACILITY SIZING A 1,372 square foot house previously existed on the site and this impervious area has been subtracted from the treatment square footage. Therefore, the proposed facility has been sized the net increase in runoff and includes treatment for two new single family dwellings and a common driveway. There currently is no formal drainage system along 315t St. Therefore, the proposed infiltration rain garden will be sized for the 25-year event. The attached calculations demonstrate that this facility has been sized to meet the design requirement for the 25-year event. C]RFi—,.QN -%r n-L;. I?.'3V 71 SUBMISSION NOTE: Of the two lots proposed, each will have a soakage trench per the attached plans. POINT OF ACCESS 1. All soakage trenches are considered injection wells and must be registered with the Oregon Department of Environmental Quality as Underground Injection Control (UIC) systems. 2. Provide protection from all vehicle traffic, equipment staging, and foot traffic in proposed infiltration areas prior to, during, and after construction. 3. Soakage trenches shall be designed using the presumptive approach due to the limited soil conditions in Eugene and the need to fully infiltrate the flood control design storm. This detail is intended to illustrate a typical soakage trench installation. Installation shall conform to the soakage trench design provided by the Presumptive Method. 4. Setbacks (from center of facility): a.10' from foundations b. 5' from property lines 5. Piping: Minimum 3" pipe required for up to 1,500 sq ft of impervious area, otherwise 4" min. Piping material, slopes and installation shall follow the Uniform Plumbing Code. 6. Silt Traps: A silt trap or other access point is required at finished grade for inspection and maintenance access SOAKAGE TRENCH TYPICAL CROSS SECTION FILTER FABRIC L- 6" MIN.` 12" MIN I -Y4"-2 Xt" WASHED DRAIN ROCK 12" MIN [ \- PERFORATED DRAIN PIPE CITY OF SOAKAGE TRENCH DATE 1/2/2 14 SCALE NITS EUGENE, OREGON DRAWN BY SING Eugene DEPARTMENT OF PUBLIC WORKS TYPICAL DETAILS ENGINEERING DIVISION Stormwater SubSurface Filtration/Infiltration Facility Sizing Spreadsheet 24 Hour Storm, NRCS Type 1A Rainfall Distribution City of Eugene Version 2.1 Project Information Project Name: Project Address Designer: Company Instructions: 1423 31st 1423 31st Springfield, OR Owner Eugene Swmm Date: 7/8/2024 Permit Number: 811-24-001923-MD Catchment ID: 1 1. Complete this form for each drainage catchment in the project site that is to be sized per the Presumptive Approach. 2. Provide a distinctive Catchment ID for each facility coordinated with the site basin map to correlate the appropriate calculations with the facility. 3. The maximum drainage catchment to be modeled per the Presumptive Approach is 1 acre (43,560 SF) 4.For infiltration facilities in Class A or B soils where no infiltration testing has been perfromed use an infiltration rate of C Maximum design Choose "Yes" from the dropdown boxes below next to the design standards requirements for this facility. Pollution Reduction (PR) Yes 'Soakage trenches draining commerical parking lots require pre-treatment to meet pollutior Flow Control (FC) Yes Destination (DT) Yes 'An infiltration facility must be chosen as the facility type to meet destination requirements Site Data -Post Development Total Square Footage Impervious Area= 1333 sqft Total Square Footage Pervious Area= Impervious Area CN= 98 Pervious Area CN= Total Square Footage of Drainage Area= 1333 sft Time of Concentration Post Development= Weighted Average CN= 98 Site Data -Pre Development (Data in this section is only used if Flow Control is required) Pre -Development CN= 85 Time of Concentration Pre -Development= Soil Data Tested Soil Infiltration Rate= 20 in/hr (see Note 4) Destination Design= Design Soil Infiltration Rate=1 20 in/hr Soil Infiltration Rate Design Storms Used For Calculations Requirement Rainfall Depth Design Storm Pollution Reduction 1.4 inches Water Quality Flow Control 3.6 inches Flood Control Destination 3.6 inches Flood Control Facility Data Facility Type= Soakage Trench Facility Surface Area= Surface Width= 6 ft Facility Surface Perimeter= Surface Length= 9 ft Basin Volume= Properties Effective Layer 1 Layer 2 Layer 3 Layer 4 Facility Percent Storage Depth Material Depth (in) Voids (in) Drainage Rock, Layer 1 36.0 17% 6.1 0.0 0.0 0.0 Totals= 36.0 in 6.1 in Pollution Reduction -Calculation Results Peak Flow Rate to Stormwater Facility = 0.010 cfs Peak Facility Overflow Rate= Total Runoff Volume to Stormwater Facility = 131 cf Total Overflow Volume= Max. Eff. Depth of Stormwater in Facility= 0.0 in Drawdown Time= 0.2 hours Yes Facility Sizing Meets Pollution Reduction Standards? YES Meets Requirement of No Facility Flooding? YES IMeets Requirement for Maximum of 18 Hour Drawdown Time? Flow Control -Calculation Results Peak Flow Rate to Stormwater Facility = 0.029 cfs Peak Facility Overflow Rate= Total Runoff Volume to Stormwater Facility = 373 cf Total Overflow Volume= Peak Off -Site Flow Rate Max. Eff. Depth of Stormwater in Facility= 0.7 in Filtration Facility Underdrain= Drawdown Time=1 0.2 hours Pre -Development Runoff Data Peak Flow Rate = 0.016 cfs Total Runoff Volume = 234 cf Yes Facility Sizing Meets Flow Control Standards? YES Meets Requirement for Post Development offsite flow less or equal to Pre -Devi YES Meets Requirement for Maximum of 18 Hour Drawdown Time? Destination -Calculation Results Peak Flow Rate to Stormwater Facility = 0.029 cfs Peak Facility Overflow Rate= Total Runoff Volume to Stormwater Facility = 373 cf Total Overflow Volume= Max. Eff. Depth of Stormwater in Facility= 4.9 in Drawdown Time= 0.2 hours Yes Facility Sizing Meets Destination Standards? YES Meets Requirement of No Facility Flooding? YES Meets Requirement for Maximum of 30 hour Drawdown Time? �'� ).5 in/hr i reduction requirements 0 sgft 85 51min 10 min 10 in/hr 54 sgft 30 ft 27.5 cf 0.000 cfs 0 cf 0.000 cfs 0 cf N\A cfs Blopment Flow? 0.000 cfs 0 cf Stormwater SubSurface Filtration/Infiltration Facility Sizing Spreadsheet 24 Hour Storm, NRCS Type 1A Rainfall Distribution City of Eugene Version 2.1 Project Information Project Name: Project Address: Designer: Company Instructions: 1427 31 st 1427 31 st Springfield, OR Owner Eugene Swmm Date: 7/8/2024 Permit Number: 811-24-001923-MD Catchment ID: 1 1. Complete this form for each drainage catchment in the project site that is to be sized per the Presumptive Approach. 2. Provide a distinctive Catchment ID for each facility coordinated with the site basin map to correlate the appropriate calculations with the facility. 3. The maximum drainage catchment to be modeled per the Presumptive Approach is 1 acre (43,560 SF) 4.For infiltration facilities in Class A or B soils where no infiltration testing has been perfromed use an infiltration rate of C Maximum design Choose "Yes" from the dropdown boxes below next to the design standards requirements for this facility. Pollution Reduction (PR) Yes 'Soakage trenches draining commerical parking lots require pre-treatment to meet pollutior Flow Control (FC) Yes Destination (DT) Yes 'An infiltration facility must be chosen as the facility type to meet destination requirements Site Data -Post Development Total Square Footage Impervious Area= 1333 sqft Total Square Footage Pervious Area= Impervious Area CN= 98 Pervious Area CN= Total Square Footage of Drainage Area= 1333 sft Time of Concentration Post Development= Weighted Average CN= 98 Site Data -Pre Development (Data in this section is only used if Flow Control is required) Pre -Development CN= 85 Time of Concentration Pre -Development= Soil Data Tested Soil Infiltration Rate= 20 in/hr (see Note 4) Destination Design= Design Soil Infiltration Rate=1 20 in/hr Soil Infiltration Rate Design Storms Used For Calculations Requirement Rainfall Depth Design Storm Pollution Reduction 1.4 inches Water Quality Flow Control 3.6 inches Flood Control Destination 3.6 inches Flood Control Facility Data Facility Type= Soakage Trench Facility Surface Area= Surface Width= 6 ft Facility Surface Perimeter= Surface Length= 9 ft Basin Volume= Properties Effective Layer 1 Layer 2 Layer 3 Layer 4 Facility Percent Storage Depth Material Depth (in) Voids (in) Drainage Rock, Layer 1 36.0 17% 6.1 0.0 0.0 0.0 Totals= 36.0 in 6.1 in Pollution Reduction -Calculation Results Peak Flow Rate to Stormwater Facility = 0.010 cfs Peak Facility Overflow Rate= Total Runoff Volume to Stormwater Facility = 131 cf Total Overflow Volume= Max. Eff. Depth of Stormwater in Facility= 0.0 in Drawdown Time= 0.2 hours Yes Facility Sizing Meets Pollution Reduction Standards? YES Meets Requirement of No Facility Flooding? YES IMeets Requirement for Maximum of 18 Hour Drawdown Time? Flow Control -Calculation Results Peak Flow Rate to Stormwater Facility = 0.029 cfs Peak Facility Overflow Rate= Total Runoff Volume to Stormwater Facility = 373 cf Total Overflow Volume= Peak Off -Site Flow Rate Max. Eff. Depth of Stormwater in Facility= 0.7 in Filtration Facility Underdrain= Drawdown Time=1 0.2 hours Pre -Development Runoff Data Peak Flow Rate = 0.016 cfs Total Runoff Volume = 234 cf Yes Facility Sizing Meets Flow Control Standards? YES Meets Requirement for Post Development offsite flow less or equal to Pre -Devi YES Meets Requirement for Maximum of 18 Hour Drawdown Time? Destination -Calculation Results Peak Flow Rate to Stormwater Facility = 0.029 cfs Peak Facility Overflow Rate= Total Runoff Volume to Stormwater Facility = 373 cf Total Overflow Volume= Max. Eff. Depth of Stormwater in Facility= 4.9 in Drawdown Time= 0.2 hours Yes Facility Sizing Meets Destination Standards? YES Meets Requirement of No Facility Flooding? YES Meets Requirement for Maximum of 30 hour Drawdown Time? �'� ).5 in/hr i reduction requirements 0 sgft 85 51min 10 min 10 in/hr 54 sgft 30 ft 27.5 cf 0.000 cfs 0 cf 0.000 cfs 0 cf N\A cfs Blopment Flow? 0.000 cfs 0 cf