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2020-06-19_REVISION - M1973021
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2020-06-19_REVISION - M1973021
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Entry Properties
Last modified
1/7/2025 7:57:53 AM
Creation date
6/22/2020 12:04:38 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1973021
IBM Index Class Name
REVISION
Doc Date
6/19/2020
Doc Name
Request for Technical Revision
From
Aggregate Industries
To
DRMS
Type & Sequence
TR7
Email Name
ECS
MAC
AWA
Media Type
D
Archive
No
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' Geotechnical GEI <br /> Water Resources C �-I <br /> Environmental and <br /> ' Ecological Services <br /> Memo <br /> To: Jeremy Deuto, P.E., P.G.,Regional Land and Environmental Manager <br /> Aggregate Industries -WCR Inc. <br /> ' From: Andrew Lockman, P.G.,Jamie Matus,P.G.,CPG <br /> Date: June 15,2020 <br /> ' Re: Kinematic Evaluation of the West Quarry Haul Road,Morrison Quarry <br /> Introduction and Background <br /> GEI Consultants, Inc. (GEI) has prepared this technical memorandum to summarize results of a <br /> preliminary kinematic evaluation performed for a planned road cut along a haul road providing <br /> access to Aggregate Industries' (Al) West Quarry at the Morrison Quarry Mine. The haul road is <br /> intended to provide access to the West Quarry for future mining activities. The haul road <br /> ' construction will include a large rock excavation on a southeast facing side slope as shown below <br /> in Figure 1. <br /> FOOTPRINT OF ROAD CUT , <br /> ROCK EX. <br /> f <br /> A b <br /> �7347.0 <br /> HAUL ROAD ��`� %5 % <br /> 1' 1 <br /> — 6192A <br /> Figure 1. Plan view showing approximate alignment of haul road. <br /> ' The haul road alignment and cut geometry was selected by Al and contains significant cut and fill <br /> sections due to the steep topography. The roadcut is approximately 870 feet long and the <br /> maximum height is 92 feet. A bench approximately 20 feet wide will separate two highwalls with <br /> slopes of approximately 1 H:5.5V and 1 H:2.8V. The roadcut profile is shown in Figure 2. <br />
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