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2002-04-30_GENERAL DOCUMENTS - C1981018
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2002-04-30_GENERAL DOCUMENTS - C1981018
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Last modified
5/19/2020 11:59:56 AM
Creation date
11/23/2007 11:21:26 AM
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Template:
DRMS Permit Index
Permit No
C1981018
IBM Index Class Name
General Documents
Doc Date
4/30/2002
Doc Name
Midterm Review Findings Document
Permit Index Doc Type
Findings
Media Type
D
Archive
No
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• Segment 1 design specifies depth of 1.06', top width of 4.25'. Inspection report <br />indicated that ditch was less than 1' deep at one location. <br />• Segment 2 design d=1.34', tw=5.37', 6"D50 riprap. Inspection report did not report <br />dimensions for the segment. <br />• Segment 3 design d=1.68', tw=6.72'; D50=6". Inspection report indicated that a <br />section of Segment 3 had a trapezoidal shape, with d=3', bw=10', and tw=13'. <br />• Segment 4 design d=2.15', tw=8.59'; Segment 5 design d=2.32', tw=9.28'. <br />Inspection report for these segments reported one trapezoidal section, with <br />d=2', bw=5', and tw=12'. Within a triangular shaped section, reported d=1.5', <br />tw=7'. At a representative rock check location, depth (above center of rock <br />check) was 14". <br />• Segment 6 design d=2.46', tw=9.84'. Inspection report included measurements for <br />two ditch sections between rock checks, and one section at a rock check. The <br />between-check sections were d=2', tw=8'; and d=1.5', tw=9'. The section at a <br />rock check was d=14", tw=9'. <br />• Segment 7 design d=1.38', tw=5.53'. Inspection report indicated typical section <br />was approximately d=1', tw=6'. <br />• Segment 8 design d=1.62', tw-6.42'. Dimensions for several sections were <br />included in the report; d=2', tw=14' (at a rock check); d=3', tw=13 ; d=1.5', tw=12 ; <br />d=3', tw=12'; and d=1.5', tw=14' (at a rock check). <br />• Segment 9 design d=1.93', tw=7.71'. No measurement in the report for this section. <br />• Segment 10 design d=1.56', tw= 6.23', D50=6". No measurement in the report for <br />this section. <br />• Segment 11 design d=1.69', tw=6.74', D50=6". At the bend of the ditch, the report <br />indicated a trapezoidal channel, with d=2', bw=10', tw'13'. <br />• Segment 12 design d=1.9', tw=7.61'. Inspection indicated trapezoidal channel, <br />with d=2', bw=9', tw=15'. <br />To summarize, Illustration 6A designs do not correspond to Map 80A designs, and neither <br />design corresponds to the trapezoidal channel segments constructed in certain locations. In <br />various sections, channel dimensions do not appeaz to conform with design dimensions. <br />Required capacity at check dam locations (based on text) is the same as prescribed for the <br />particular ditch segment, although this appears to conflict with Map 80A detail note. Check <br />Deserado Mine Apri130, 2002 <br />13 <br />
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