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<br />CIlAPTERXII <br />EXISTING DRAINAGE FACILITIES <br />A~D FLOODING PROSLEXS <br /> <br />TABLE-9 <br />DRAINAGE STRUCTURE CAPACITIES <br /> <br />Present Dtaina~e Fscilities <br /> <br />LOCATION <br /> <br />REFERENCE <br />LINE <br />STATION <br /> <br />. <br />"" <br />NlJXBER <br /> <br />STRUCTURE <br />SIZE & TYPE <br /> <br />CAPACITY-cIs <br />EXISTING MAXIMUM REQUIRED Q25 <br /> <br />Field invcstigations wcre pcrformed by Water Resources Consultants, <br />Inc. and the Colorado Water Conservation Board to determine the size and <br />capacity of the existing drainage facilities along the major drainageways. <br />The locations of these drainage facilities are shown on Plates 17 through <br /> <br />Drainage Structure Conveyance <br /> <br />County RORd 41+50 1 24",.32' '" 5 15 <br />1"136 <br />Poplar Street 22+15 , 30" x 40' "" 30 30 <br />Elm/Elbert 19+20 3 36" x 58' '" 25 40 <br />Streeu <br />Elm Street 19+20 4 24"x40' '" 4 15 <br />Elbert Street 19+20 , 18" x 40' "" 0 6 <br />Broadway 15+00 6 Bridge 40 40 <br />Pine Street 13+40 , (Two) 30 30 <br /> 24" . 30' "" <br />aanner/Lincoln 10+35 6 Storm Sewer " S5 <br />Streets (Size varies) <br />Tabor Street 6+50 9 24" x W '" " 16 <br />Elm/Mobile 9+30 " 18"x30' OW 0 0 <br />Street. <br /> <br />m <br /> <br />" <br /> <br />15. <br /> <br />130 <br /> <br />Each culvert was hydraulically analyzed to determine its capacity. The <br />capacity is con.idered to be the maximum flow without street overtopping. <br />The capacity was e.timated for existing conditions, which may include some <br />sediment blockage, and for open culvert conditions. Table-9 summarize. ~he <br />results of thi.analy$;'s for each drainage structurealoog them aind,...inage- <br /> <br />m <br /> <br />'" <br /> <br />"ay~. <br /> <br />177 (Q50) <br /> <br />" <br /> <br />70 <br /> <br />* NOTES FOR TABLE-9 <br /> <br />L <br />,. <br />3. <br /> <br />Crushed ends; inlet ob.tructed; minlmum covcr. <br />Culvert is unobst,.uctcd. <br />Sediment accumulation in b~rr"l - 40t r<,Hricted. <br /> <br />-55- <br /> <br />-56- <br />