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I I I I I I I I I I I I I I I I I I I TABLE IV-1 FLOOD HAZARD DATA FOR 100-YEAR STORM lIIIJUY SllllII am: Fl ood1 ng SalI"Ce loo..)9r Fl"",*>l.fn Data Fl~ Data Fl~ lItdth 3 l00-}<9r Th.l""9 Flood Fl~ ldentlf1cat10'l Stat10'l1 D1 schal'1lE! Elev.tion EleYation Fl"",*>1.1n 191OCf~2 Left R1!tlt Total 191.4 Elev.tlon (efs) (MSl) (MSll lItdth (ft) (fps) (feet) (feet) (feet) 1fE!l (MSl) 2+55 128:) 5101.7 In B19 Dry Creek Fl"",*>l.in In Bi9 Illy Creek Fl~ 5-+85 128:) 511:6.1 5107.1 4Otl** 3.9 lil 140 200 4.7 5107.5 10155 128:) 5112.0 5113.6 210** 5.7 !ll 100 1!ll 6.5 5113.6 14-100 128:) 5117 .0 5119.3 350** 5.0 !ll lil 110 6.0 5119.6 16+45 128:) 5120.0 5122.6 210** 5.2 100 30 130 5.1 5122.9 Genren Ditch 19>95 128:) 5128.0 5129.0 210** 6.1 130 Ml 370 6.2 5129.0 YorI< Street 20>40 1220 5128.5 5130.3 400 1.7 2!ll 140 390 1.7 5130.3 20tal 1220 5127.3 5130.3 400 1.5 3!ll 1!ll !llD 1.5 5130.3 2llo65 1220 5137.5 5138.3 1(8) 3.9 110 2!ll 3!ll 5.2 5138.6 33-+40 1220 5143.5 5144.4 720 2.0 llil 220 m 2.6 5144.9 37+20 1220 5148.3 51!ll.3 400 3.7 8J 170 2!ll 5.3 51!ll.6 42>10 1220 5156.2 5158.8 320 4.0 120 40 1m 4.0 5159.0 47+75 1220 5163.3 5165.2 4QJ+ 3.5 110 40 1!ll 4.7 5165.2 lJ'IlR 48+QJ 1110 5164.0 5173.7 340 1.9 10 3!ll 3!ll 1.9 5173.7 49+00 1110 5165.0 5173.7 ~ 0.2 !ll 2&:l 310 0.6 5173.7 Dim 58+35 1030 5191.9 5192.6 1710 2.4 140 2!ll 390 4.8 5192.8 144t1l A...... 71+1:6 930 5195.5 5198.9 410 1.9 210 60 270 1.7 5199.2 76+QJ am 5203.4 5204.5 160 4.7 55 30 85 5.5 5204.7 81+m am 5211.0 5213.6 120 2.9 m 20 8J 2.9 5213.7 Il5l9l am 5218.6 5220.5 90 5.2 30 30 m 6.7 5220.7 Dim 86+9D 220 5234.0 5234.7 !ill) 0.9 40 40 8J 4.4 5234.7 Notes: 1. Distance fran confluerce .long ehomel '~a~ li... 2. Mean velocl1;y in chamel. 3. Fran chamel referonce 11.. looking _stretm. 4. Mean veloci~ in fl~. * Fl"",*>l.fn width includes ...... of 1'tYdnu11cally discomected flOlf. ** Fl"",*>l.in width!!!!!. rot fnchlde ...... of hy....u11e.lly disconnected flOlf. lIIIJUY IIRIII auJ: Fl ood1 ng SalI"Ce l00..)9r Fl"",*>l.tn Data Floock\y Data Fl~lItcllh 3 Fl~ Left Rlllt Total 191.4 Elev.tfon (feet) (feet) (feet) 1fE!l (MSL) In 81g ill)' Creek Fl~ 30 !ll 8D 8.7 !ll 30 8J 5.0 !ll 40 90 8.7 8D 160 Ml 2.0 75 125 200 2.5 30 70 100 5.1 25 11:6 130 3.6 8J 40 120 7.2 210 280 490 3.4 2!ll 300 5!ll 0.6 220 430 6!ll 1.7 8D 230 310 3.3 50 170 220 5.3 60 190 2!ll 1.5 60 190 2!ll 0.7 125 145 270 4.9 45 21:6 2!ll 4.4 210 130 340 1.0 230 160 390 1.4 l00-)9r Thal"""l Dlschal'1lE! Elev.tion (efs) (MSl) 1400 !ll92.2 1400 5100.2 1400 5101.5 1400 5104.8 1340 5106.0 1340 5107.0 1340 5110.3 1340 5111.6 1340 5117 . 7 1340 5126.5 1160 5124.0 1160 5131.2 1160 5138.4 1160 5148.0 1010 5148.3 1010 5149.0 700 5159.0 700 5173.8 700 5171.8 700 5173.9 Flood ElevatiO'l Floodpl.in 191OCi~l (MSL) Width (ft) (fps) In 819 Dry Creek Fl"",*>l.ln 5104.2 115 7.8 5107.4 120 5.2 5109.9 170* 8.5 5113.2 2!ll 2.0 5113.2 210 2.5 5113.5 190 3.9 5114.3 4!ll 2.6 511B.3 250** 5.8 5126.8 990** 2.5 5127.0 1130** 0.5 5131.6 1010** 1.3 5139.9 660' 2.4 5148.9 310 5.0 5155.7 29D 1.5 5155.7 Ism 0.2 51m.0 325 4.8 5174.3 11:60 2.7 5175.2 340 1.2 5175.2 390 1.8 Identification Stationl 1+m 10+00 12+!ll 14+45 Yor1< Street 14+95 15+30 17+!ll 19>95 25+4D 31+80 :2+70 38+75 45+70 52+10 lPRll 52+9D 53+55 Rood 58+9D Dim 63+30 69+60 Rood 70+20 5104.2 5107.6 5109.8 5113.2 5113.2 5113.4 5114.7 511B.5 5127.6 5127.8 5132.0 5140.2 5149.1 5155.7 5155.7 5160.0 5174.6 5175.4 5175.5 Notes: 1. 2. 3. 4. otstance fron Confluence Along Chamel Reference Line Mean 19locft;y fn Chamel Fran Channel Reference Li.. Looking Il<w1strM11 Mean Veloci1;y 1n Fl~ Floodplafn width fncludes ..... of lb-llrou11cally discomecte<l fl.... Fl"",*>14in width does rot include ..... of hyllroulic.lly disconnecte<l fl.... . **