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1987-12-01_PERMIT FILE - C1981017 (109)
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1987-12-01_PERMIT FILE - C1981017 (109)
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Last modified
1/4/2021 1:01:55 AM
Creation date
5/15/2012 10:20:35 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1981017
IBM Index Class Name
PERMIT FILE
Doc Date
12/1/1987
Doc Name
Hydrologic Control Plan
Section_Exhibit Name
Chapter II Appendix II-B-7
Media Type
D
Archive
No
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DRMS Re-OCR
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Signifies Re-OCR Process Performed
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The Division has recommended larger rip rap size - the D51 riprap <br /> size mostly around 1 foot in diameter, and has prepared a table of <br /> the recommended sizes, based on an assumption of a riprap size <br /> averaging about 13 inches in diameter. These riprap sizes do seem <br /> quite large to us, but we will accept the recommendation of the <br /> Division, anticipating that smaller size material will be placed <br /> beneath the very large rock (otherwise the water would simply flow <br /> beneath the big rocks, eroding the base of the embankment) , and the <br /> very large rocks would be placed down the embankment. <br /> In my letter of September 27, responding to the Division's previous <br /> review, I proposed that TR-18 materials should be placed at Vol. 3 , <br /> App. II-B-7 as pages 45-47. I would propose this letter, together <br /> with the correspondence from MLRD concerning the riprap sizing, as <br /> pages 51-54. I have noted at the bottom of these pages as well <br /> that they related to TR-18, a revision of 10/91 and these are <br /> attached for insertion in the permit. <br /> Yours truly, <br /> C� <br /> Diane Delaney <br /> Mid-Continent Res. <br /> TR-18 <br /> 52 10/91 <br />
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