Laserfiche WebLink
<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 />FLOOD HAZARD AREA DELINEATION <br />LITTLE DRY CREEK <br /> <br />Table of Contents <br /> <br />Preface <br />List of Tables <br />List of Figures <br />In troduction <br />Study Area Description <br />Drainage Basin Characteristics <br />Study Reach Description <br />Historic Flooding <br />Hydrologic Analysis <br />Rainfall Data <br />Derivation of Hydrographs <br />Land Use <br />Losses <br />Flood Hydrographs <br />Hydraulic Determinations <br />Flood Hazard Areas <br />Flooded Areas <br />Shaw Heights Tributary <br />Tributary "B" <br />Tributary "C" <br />References <br />Drawings <br /> <br />Pa~e <br /> <br />1 <br />2 <br />2 <br />3 <br />3 <br />3 <br />3 <br />4 <br />6 <br />6 <br />8 <br />8 <br />8 <br />8 <br />18 <br />18 <br />26 <br />27 <br />27 <br />28 <br />29 <br /> <br />-2- <br /> <br />FLOOD HAZARD AREA DELINEATION <br />LITTLE DRY CREEK <br /> <br />List of Tables <br /> <br />Pa~e <br /> <br />1. Design Rainfall Values 6 <br />2. Drainage Basin Data 9 <br />3. Culvert Data 19 <br />4. Flood Plain and Floodway Reference Data - Little Dry Creek 21 <br />4A. Flood Plain and Floodway Reference Data - <br />Little Dry Creek, Left Overbank Station 10+00 to 24+00 22 <br />5. Flood Plain and Floodway Reference Data - Shaw Heights Tributary 23 <br />6. Flood Plain and Floodway Reference Data - Tributary "B" 24 <br />7 . Flood Plain and Floodway Reference Data - Tributary "C" 25 <br /> <br />List of Figures <br /> <br />Pa~e <br /> <br />1. Ponding East of Federal at R.R. Embankment - June 10, 1975. 5 <br />2. Reach 1 looking East from Federal Blvd. 5 <br />3. Culvert beneath Federal Blvd. Overpass. 5 <br />4. Channel Encroachment in Reach 2. 5 <br />5. Rainfall Hyetograph - 100 Year Storm 7 <br />6. 100 Year Flood Hydrograph - Little Dry Creek at Clear Creek 10 <br />7. 100 Year Flood Hydrograph - Little Dry Creek at Federal Blvd. <br />and Sheridan Blvd. 11 <br />8. 100 Year Flood Hydrograph - Little Dry Creek at Wadsworth and <br />Pomona Lakes 12 <br />9. 100 Year Flood Hydrograph - Little Dry Creek at Croke Canal and <br />Simms St. 13 <br />10. 100 Year Flood Hydrograph - Shaw Heights Tributary at 80th Ave. <br />and U.S. 36 14 <br />11. 100 Year Flood Hydrograph - Lake Arbor and Inflow from Tributaries <br />"B" and "C". 15 <br />12. Peak Flood Discharges - Little Dry Creek 16 <br />13. Peak Flood Discharges - Tributaries "A", "B", and "C" 17 <br />