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 />cases where the floodway and 100-year floodplain boundaries are either <br />close together or collinear, only the floodway boundary is shown. <br /> <br />The area between the floodway and 100-year floodplain boundaries is <br />termed the floodway fringe. The floodway fringe encompasses the portion <br />of the floodplain that could be completely obstructed without increasing <br />the WSEL of the 100-year flood more than 1,0 foot at any point. Typical <br />relationships between the floodway and the floodway fringe and their <br />significance to floodplain development are shown below, <br /> <br />Figure 4: Floodway Schematic <br /> <br />I.. <br /> <br />lOG-YEAR FLOODPLAIN <br /> <br />FLOODWAY I FLOODWAY <br />FRINGE <br /> <br />STREAM <br />CHANNEL <br /> <br />../ <br /> <br />LOODWA Y <br />FRINGE <br /> <br />FLOOD ELEVATION WHEN <br />CONFINED WITHIN FLOODWAY <br /> <br /> <br />AREA OF FLOODPLAIN THAT COULD BE USED <br />FOR DEVELOPMENT BY RAISING GROUND <br /> <br />UNE AB IS THE FLOOD EIEVAlION BEFORE ENCROACHUENT, <br />UNE CD IS THE FLOOD B.EVAll0N AFTER ENCROACHUENT. <br />-SURCHARGE IS NOT m EXCEED 1.0 FOOT (FlA REQUIREMENT) OR LESSER Ar.tOUNT IF SPECIFIED BY THE STATE. <br /> <br />5.0 LOCATION OF DATA <br /> <br />Information pertinent in the preparation of this study can be obtained by <br />contacting the Colorado Water Conservation Board, 1313 Sherman Street, Room <br />721, Denver, Colorado 80203. <br /> <br />6.0 BIBLIOGRAPHY AND REFERENCES <br /> <br />1. Town of Marble Website, www.marblecolorado.org, March 2003. <br /> <br />2. U.S, Geological Survey, PEAKFQ - Flood Frequency Analvsis Based on <br />Bulletin 17B, Version 4.0, December 1, 2000. <br /> <br />ICON Engineering, Inc. <br />May 2004 <br /> <br />8 <br />