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FLOOD06827
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Last modified
1/25/2010 7:10:05 PM
Creation date
10/5/2006 2:32:25 AM
Metadata
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Template:
Floodplain Documents
County
Logan
Community
Sterling
Basin
South Platte
Title
Pawnee Creek Overflow Interceptor Channel
Date
10/1/2001
Prepared For
Sterling
Prepared By
ICON Engineering, Inc.
Floodplain - Doc Type
Floodplain Report/Masterplan
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<br />2, <br /> <br />3, <br /> <br />. <br /> <br />2, EARTH FILL PLACEMENT <br /> <br />The fill is: <br /> <br />[8J Existing <br /> <br />D Proposed <br /> <br />Has fill been/will be placed in the regulatory ftoodway? <br />tf Yes, ptease attach completed Riverine Hydraulic Anatysis Form (Form 4), <br /> <br />DYes <br /> <br />rgJ No <br /> <br />Has fill been/will be placed in ftoodway fringe (area between the floodway <br />and l00'year floodp/ain boundaries)? <br /> <br />DYes <br /> <br />[8J No <br /> <br />If Yes, then complete A, B, C, and D below, <br /> <br />a, <br /> <br />Are fill slopes for granular materials steeper than one vertical <br />on one-and-one-half horizontal? <br /> <br />D No <br /> <br />DYes <br /> <br />If Yes, justify steeper slopes _ <br /> <br />b. 15 adequate erosion protection provided for fill slopes exposed to moving flood waters? (Slopes exposed to <br />flows with velocities of up to 5 feet per second (fpsJ during the tOO-year flood must, at a minimum, be <br />protected by a cover of grass, vines, weeds, or simi1ar vegetation; slopes exposed to flows with velocities <br />greater than 5 fps during the tOO-year flood must, at a minimum, be protected by stone or lock riprap.) <br /> <br />DYes <br /> <br />D No <br /> <br />If No, describe erosion protection provided _ <br /> <br />c. Has all fill placed in revised 1 OO-year floodplain been compacted to 95 percent of the maximum density <br />obtainable with the Standard Proctor Test Method or acceptable equivalent method? DYes D No <br /> <br />d. Can structures conceivably be constructed on the fill at any time in the future? 0 Yes 0 No <br /> <br />If Yes. attach certification of fill compaction (item 3c. above) by the community's NFIP permit official, a registered <br />professional engineer, or an accredited soils engineer in accordance with Subparagraph 65.5(a)(6} of the NFIP <br />regulations. <br /> <br />4, <br /> <br />Fill certification attached D Yes <br />Has fill been/will be placed in a V zone? DYes <br /> <br />[8J No <br />[8J No <br /> <br />If Yes, is the fill protected from erosion by a flood control structure such as a revetment or seawall? <br /> <br />DYes <br /> <br />D No <br /> <br />If Yes, attach the Coastal Structures Form (Form 10), <br /> <br />FEMA Form 81,89D <br /> <br />Riverine/Coastal Mapping Form <br /> <br />MT-2 Form 5 Page 2 of 2 <br />
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