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Ccimiprehensive Pllar Slormwaler Mar aigement sub -Element <br />Capacity Ana]Ns:is <br />CurrenitaN, Iho ani ire sub -basin is capable cif Iacaammodat:ing a 3_I year/34 hour slorm avant. <br />Wall or Qual:iq <br />Rlocicrl:idgei subd:ivis:ian avid Country Club Hointea subd;ivis:ian warn aanstrucilad at a time whein <br />stormwater management fealuras were riot raquired. A s such, they hislorically conitributeic to waiter <br />pollulion in sub -basin R -J. Rleaanitly, stormwarter improvaments were caompletad in lhase <br />subdivisions) ailleiviat;ing pollutian problems. <br />• Sub -basin IR -3 (Roseland Ar eia) <br />Service Areia <br />Exilenidinig north of CM 5 ] 0 to 1he shlore of the St. Sebastian Riveir, sub -basin R-31 is located bet"leen <br />thea IRL and it ha PECRR. <br />Topographly <br />Ilypical of thea east slopes of the Atlleir.itia Coastaa Ridge, elevations begin at zero along ilha IRL and <br />rise to thla c eisil, reaachling W to 3_I feet in haight along lhla r:idgc where a :low flat plateau exists. <br />Slruatural Aaature s <br />Although) ei :laaige parl of basin RI -=1 encompasses urbanizad arenas of the City of Sebastian, the <br />northern plortian is pradaminataly an urian silarmiwaler managament systemi consisting of canals, <br />ditches, starm se wars and cuavearl s. <br />Aload Zones <br />In the niorlhlarn portion of sub -basin RVI, thlc AE fllooc zone is in close proximiq to thea IRL. <br />Ilandward of the AH fllaad zone, thle x f )acid zone eaxil anids to UIS Highway l in the north), and west of <br />UIS : to the south). <br />Land Use <br />Within the R-31 sub -basin transportalion caorridor (UI8 Highway 1, Old Dixie HiElhway, avid lhla <br />FIECRRI), aamrnerc:ial and industrial developments ane scatllered. Along the IM, )Mere is a miix of <br />ClammuinilylDevelaplmerI Eeplarlmenl Irdliam RhierCum t31 33 <br />