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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />The FIRM identifies numerous floodplains which are located on public lands under <br />federal jurisdiction and not under the jurisdiction of CWCB. Design point locations, used <br />for flood peak estimates were established for approximate floodplains shown on the <br />FIRM at locations were they were near privately owned lands or in areas where water <br />surface elevations are generally defined by lakes and reservoirs. Basin delineation and <br />design points used to estimate approximate 100-year flood peaks are shown on Figures <br />2A through 2C. Table 2 identifies the 100-year flood peak estimates at the various design <br />points shown on these Figures. <br /> <br />Table 2. Approximate 100- Year Flood Peak Discharge Estimates using CWCB <br />Regression Equations <br /> <br />Location/Design Watershed Drainage Area 100- Year Flood <br />Point (DP) (sq. mi.) Peak Discharge <br /> Estimate (cfs) <br />Henson Creek <br />VIS Lake City (H2) Colorado River Basin 37 1500 <br />Lake Fork Gunnison River <br />VIS Lake City (L4) Colorado River Basin 53 1800 <br />Mineral Creek <br />Outlet(M1) Colorado River Basin 23 1100 <br />Cebolla Creek <br />County Line (C 1) Colorado River Basin 233 4200 <br />Below Spring Colorado River Basin 176 3600 <br />Creek (C2) <br />Below Mineral Colorado River Basin 133 3100 <br />Creek (C3) <br />Above Mineral Colorado River Basin 92 2500 <br />Creek (C4) <br />S/JrinJ! Creek <br />Outlet (S 1 ) Colorado River Basin 34 1400 <br />Piedra River <br />County Line (P 1 ) San Juan River Basin 85 5700 <br />Middle Fork Piedra River <br />Outlet (P2) San Juan River Basin 37 3800 <br />East Fork Piedra River <br />Outlet (P3) San Juan River Basin 44 4100 <br />Weminuche River <br />Outlet (W1) San Juan River Basin 49 4300 <br />Los Pintos River <br />County Line (LP 1 ) San Juan River Basin 110 6500 <br /> <br />Notes: See Catchment Area Maps for Design Points <br />Colorado River Basin uses CWCB curve for Lower Gunnison River area <br />San Juan River Basin uses CWCB curve for Eastern San Juan River area <br /> <br />8 <br />