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FLOOD05988
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FLOOD05988
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Last modified
1/25/2010 7:07:31 PM
Creation date
10/5/2006 1:55:55 AM
Metadata
Fields
Template:
Floodplain Documents
Designation Number
311
County
Arapahoe
Community
Aurora
Stream Name
Granby and Sable Drainageways
Basin
South Platte
Title
Flood Hazard Area Delineation - Granby and Sable Drainageways
Date
9/1/1990
Designation Date
1/1/1991
Floodplain - Doc Type
Floodplain Report/Masterplan
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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 />Table 3. Land Use and Percent Imperviousness. <br /> <br />Land Use Percent Imperviousness <br /> <br />Low Density (Single-Family) <br /> <br />Medium Density (Single-Family) <br /> <br />High Density (Mobile Home/Apartment) <br /> <br />Undeveloped (Open Space) <br /> <br />Industrial <br /> <br />Semi-Developed (Buckley Air Field) <br /> <br />Commercial <br /> <br />35 <br />45 <br /> <br />80 <br />10 <br />95 <br /> <br />20 <br /> <br />95 <br /> <br />12 <br /> <br />Drainaqeway <br /> <br />Design <br />Point <br /> <br />Granby <br /> <br />Granby <br /> <br />Granby <br /> <br />Granby <br /> <br />Granby <br /> <br />Granby <br /> <br />Granby <br /> <br />Granby <br /> <br />Granby <br /> <br />Granby <br /> <br />Granby <br /> <br />Granby <br /> <br />Sable <br /> <br />Sable <br /> <br />Sable <br /> <br />Sable <br /> <br />Sable <br /> <br />Sable <br /> <br />Sable <br /> <br />Sable <br /> <br />Sable <br /> <br />201 <br /> <br />202 <br /> <br />211 <br /> <br />203 <br /> <br />204 <br />205 <br /> <br />206 <br /> <br />207 <br />208 <br />42 <br />239 <br /> <br />209 <br /> <br />241 <br />233 <br />234 <br />235 <br /> <br />236 <br /> <br />237 <br />238 <br />240 <br /> <br />301 <br /> <br />Table 4. Summary of Discharges. <br /> <br />Location <br /> <br />Discharge (cfs) <br />Future Land-Use <br />10-Yr. 50-Yr. 100-Yr. 500-Yr. <br /> <br />Buckley Road 239 464 582 950 <br /> <br />6th Avenue 323 658 840 1411 <br />(Inflow) <br /> <br />6th Avenue 44 52 56 559 <br />(Outflow) <br /> <br />Laredo Street 95 155 185 593 <br /> <br />Highline Canal 92 151 182 587 <br /> <br />Chambers Road 140 257 318 619 <br /> <br />Hinkley High 213 346 489 799 <br />school <br /> <br />K-Mart 261 488 610 998 <br /> <br />Colfax Avenue 428 778 963 1571 <br /> <br />Montview Blvd. 163 465* 692* 1256* <br /> <br />Billings Street 187 486* 697* 1231* <br /> <br />1-225 and 450 517* 556* 715* <br />Colfax Avenue <br /> <br />Buckley Road 73** 145** 180** 289** <br /> <br />Colfax Avenue 208 399 491 827 <br /> <br />Jasper Street 314 575 717 1184 <br />Chambers Road 463 783 964 1617 <br /> <br />Montview Blvd. 532 926 1130 1858 <br /> <br />Altura Street 571 1023 1240 1990 <br /> <br />Sable Blvd. 610 1065 1313 2055 <br /> <br />At Confluence 610 1124 1384 2150 <br />with Granby <br />Drainageway <br /> <br />1-225 and 793 1538* 1928* 3257* <br />23rd Avenue <br /> <br />* These flows are split flows at Colfax Avcnu~. Approximately 440 cIs <br />are intercepted by existing 84-inch RCP along Colfax Avenue. <br />** These flows are currently intercepted by existing storm sewers <br />along Buckley Road and drains to Sand creek. <br />
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