1987-12-01_PERMIT FILE - C1981017 ‎(201)‎

• Permit No: C1981017
• IBM Index Class Name: PERMIT FILE
• Doc Date: 12/1/1987
• Doc Name: Geotechinical Investigations Mine portal Benches and Haul Roads- Table of Contents
• Section_Exhibit Name: Volume V V-E-11
• Media Type: D
• Archive: No

- the desire to acheive the most moderate road
grade possible, given the surface topography.
- adequacy to support the volume of traffic,
weight and speed of the vehicles.
- the desire to excavate the least possible
yardage in making road cuts.
The haul roads were constructed using standard
side-cast methods that were common at that time. That is,
material that was cut from the uphill side of the road was
cast downhill . Usually, topsoil or vegetation was not
removed prior to the downcasting of the material . The angle
of the cuts and fills were typically at the angle of repose.
No compaction techniques were used in stabilizing the roads.
It should be noted, however, that this was an accepted
practice for construction of roads in mountainous areas, and
was not limited to the mining industry.
In 1987, Mid-Continent Resources completed its Rock
Tunnnel into #1 and #2 Mines. (#3, #4, and #5 Mines are
currently inactive, but future plans call for lateral
extensions from the Rock Tunnel to these mines. ) All of the
coal now produced is transported from the mine faces to the
preparation plant by means of a conveyor belt. With one
exception , the classification of the roads has been down
graded from haul road to light-use road. The road system
that extends from the preparation plant to the Rock Tunnel
has been down-graded to an access road. However,
Mid-Continent still reserves the right to use the roads as a
means of hauling coal if required.
METHOD OF STUDY
In order to determine if the Coal Basin road system can
be certified according to Rule 4.03. 1 (e) the following
steps were taken:
- A review was made of Geo-Hydro's complete
geotechnical documentation report of the road system
(contained in Appendix V-E-2 of Mid-Continent 's Permit
Application) .
- A comparison was made of the existing road
characteristics and the design standards contained in Rule
4.0�. 1.
- A report entitled "Geotechnical Investigation of
Mid-Continent Resources, Inc. Number Four Mine Test Plots"
co-authorod by myself and Bruce Collins, (also contained in
Appendix V-E-2) was consulted to determine the effectiveness
of the proposed reclamation plan.
- Finally, I called upon personal observations of
the road system made during the last two years.