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<br />....................................................... <br /> <br />Table 2. ComDuted IOO-Year Discharges for ADDroximate Streams in Unincorporated La P ata ounty <br /> Drainage IOO-Year <br />Flooding Source Location Area Discharge Discharge Computation Method <br /> (sa mil (cfs) <br />Los Pinos River DIS of Red Cr. 2841 5,0002 HEC-I Modeling (US ACE, 1999)3 <br /> D/S of Texas Cr. 3021 7,8002 HEC-I Modeling (US ACE, 1999) <br /> D/S of Bear Cr. 3281 10,2002 HEC-I Modeling (USACE, 1999) <br /> @ Bayfield 3401 11 ,5002 HEC-l Modeling (USACE, 1999) <br />Red Creek @ Confl. wi Los Pinos R. 10.2 1,935 CWCB Regional Regression4 <br />N. Fork. Texas Creek @ Confl. wi S. Fork Texas Cr. 3.5 1,119 CWCB Regional Regression <br />S. Fork. Texas Creek @ Confl. wi N. Fork Texas Cr. 5.5 1,410 CWCB Regional Regression <br />Texas Creek @ Confl. wi Los Pinos R. 9.0 1,815 CWCB Regional Regression <br />Bear Creek @ Confl. wi Los Pinos R. 20.0 2,731 CWCB Regional Regression <br />Wallace Gulch @ Confl. wi Los Pinos R. 7.0 1,596 CWCB Regional Regression <br />Florida River @ USGS Gage No. 0963000 97.4' 4,170 900 cfs Lemon Dam discharge + <br /> CWCB Regional Regression6 <br />Unnamed Tributary @ Confl. wi Florida R. 9.2 1,835 CWCB Regional Regression <br />Dry Creek 2.7 mi DIS of CR 502 11.7 2,076 CWCB Regional Regression <br /> (D/S limit of approx. floodplain mapping) <br />Animas River @ East Animas Rd. 649 22,500 AS Table 17 - Detailed hydrology <br /> (D/S limit of approx, mapping) for Animas R. @ Durango <br /> Northern Corporate Limits <br /> <br />C <br /> <br />Notes: <br />1. Drainage areas include 270 sq mi basin upstream of Vallecito Reservoir. <br />2. Discharge rates downstream ofVallecito include 3.100 cfs baseflow discharge from reservoir. <br />3. Flood Plain Delineation Study, Los Pinos River Below Vallecito Dam to the Southern Ute Indian Reservation Boundary, Lo Plata County, Colorado. U.S. <br />Army Corps of Engineers, Albuquerque District, 1999. <br />4. Guidelines For Determining lOO-Year Flood Flows For Approximate Floodplains in Colorado, Version 4.0, Colorado Water Conservation Board. January <br />1999, <br />5. Drainage area includes 69 sq mi basin upstream of Lemon Reservoir. <br />6. CWCB regional regression equation applied to 28.4 sq mi drainage area below dam and 900 cfs dam discharge then added to computed peak flow. <br />7. Flood Insurance Study, La Plata County, Colorado, Unincorporated Areas, Federal Emergency Management Agency, March 16, 1995. <br /> <br />9 <br />