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Last modified
1/25/2010 6:48:31 PM
Creation date
10/5/2006 1:18:41 AM
Metadata
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Template:
Floodplain Documents
County
Jefferson
Community
Lakewood
Stream Name
Weaver Creek
Basin
South Platte
Title
CLOMR Report for Preserve at Weaver Creek HEC-2 Cross Sections 24+30 to 42+95
Date
12/26/2000
Prepared For
Fairfield Homes
Prepared By
David Evans & Associates
Floodplain - Doc Type
Floodplain Report/Masterplan
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<br />1 FEMA Fonn 81-890 <br />1 <br />1 <br />1 <br />1 <br />1 <br /> <br />--. <br /> <br />1 <br /> <br />I <br /> <br />1 <br /> <br />1 <br /> <br />1 <br /> <br />1 <br /> <br />1 <br /> <br />1 <br /> <br />1 <br /> <br />1 <br /> <br />4. <br /> <br />1 <br /> <br />1 <br /> <br />2. EARTH FILL PLACEMENT <br /> <br />1. <br /> <br />The fill is; <br /> <br />D Existing <br /> <br />181 Proposed <br /> <br />2. <br /> <br />Has fill beenlwill be placed in the regulatory floodway? <br />If Yes, please attach completed Riverine Hydraulic Analysis Fonn (Fonn 4). <br /> <br />181 Yes <br /> <br />D No <br /> <br />3. <br /> <br />Has fill beenlwill be placed in floodway fringe (area between fhe floodway <br />and 100-year floodplain boundaries)? <br /> <br />D No <br /> <br />181 Yes <br /> <br />If Yes, then complete A, 8, C, and D below. <br /> <br />a. <br /> <br />Are fill slopes for granular materials steeper than one vertical <br />on one-and-one-ha~ horizontal? <br /> <br />181 No <br /> <br />DYes <br /> <br />If Yes, justify steeper slopes <br /> <br />b. <br /> <br />Is adequate erosion protection provided for fill slopes exposed to moving flood waters? (Slopes exposed to flows <br />with velocities of up to 5 feet per second (fps) during the 100-year flood must, at a minimum, be protected by a cover <br />of grass, vines, weeds, or similar vegetation; slopes exposed to flows with velocities greater than 5 fps during the <br />100-year flood must, at a minimum, be protected by stone or rock riprap.) <br /> <br />181 Yes <br /> <br />D No <br /> <br />If No, describe erosion protection provided <br /> <br />c. <br /> <br />Has all fill placed in revised 1 OO-year floodplain been compacted to 95 percent of the maximum density obtainable <br />with the Standard Proctor Test Method or acceptable equivalent method? 181 Yes D No <br /> <br />d. <br /> <br />Can structures conceivably be constructed on the fill at any time in the Mure? <br /> <br />181 Yes <br /> <br />D 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 solis engineer In accordance with Subparagraph 65.5(a)(6) of the NFIP <br />regulations. <br /> <br />Fill certification attached <br /> <br />181 Yes <br />DYes <br /> <br /> <br />o No <br />181 No <br /> <br />Has fill beenlwill be placed in a V zone? <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 Fonn (Fonn 10), <br /> <br />Riverine/Coastal Mapping Fonn <br /> <br />MT-2 Fonn 5 Page 2 of 2 <br /> <br />
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