2007-06-29_PERMIT FILE - C1981022A ‎(2)‎

• Permit No: C1981022A
• IBM Index Class Name: Permit File
• Doc Date: 6/29/2007
• Section_Exhibit Name: 2.05 Operation and Reclamation Plans
• Media Type: D
• Archive: Yes

Section - 2.50.3
East Yard Haul Road -The East Yard haul road, which extends from the second segment of the
• main entrance road to the East Yard waste disposal area, is dassified as a haul road due to it's use for
haulage of coal refuse and mine development waste. Road width and grade are appropriate for the
volume of [raffic and weight and speed of vehicles that use the road. The road is approxtmately 1,000
feet long, gravel-surfaced, with a road width of approximately 20 feet, and a maximum pitch grade of
15 percent. Most of the road is cut into the hillslope with cut slopes no steeper than 1.SH:1V. The
entire road is within the mine disturbance area as defined by Rule 4.05.2{4) and many of the
performance standards under Rule 4.03 are, therefore, not applicable. Road plan and pxofile
configuration is shown by a Facilities Detail Map, (Map series 2.05-M3x).
This haul road is used on an occasional basis for truck haulage of coal refuse and mine development
waste from the waste pocket at the dump station or from the East Yard stockpile azea to the East
Yazd disposal area. The road may also be infrequendy traveled by tracked dozers, wheel loaders, and
light vehicles for the purposes of inspecting or maintaining the disposal area., associated drainage
structures, oz connecting drill and powerline roads. There are periods when the road is not be used
for extended periods. Because the road is fairly steep, access during inclement weather can be
difficult. During the winter, road maintenance includes snow plowing if necessary to provide for safe
access. During spring snowmelt and after major precipitation events the road may be impassable,
however, ongoing road maintenance is normally sufficient to assure access most of the time.
Drainage control for the East Yazd haul road consists of a roadside ditch which drains to the East
Yard area. Drainage control for the upper portion of the road is provided by existing drainage and
sediment control structures for the disposal azea. Drainage design details aze provided in Exhibit
2.05-E3, Drainage and Sediment Control Plan.
West Valley Haul Road -Expansion of the Elk Creek coal stockpile cut-off access from the main
• entrance road to both the Elk Creek Canyon and cemetery roads at the base of Elk Creek Canyon.
Access was reestablished by constructing a new haul road from the existing mine employee parking
area, past the West Valley Fill disposal azea to the Somerset Cemetery, and along the west side of Elk
Creek Canyon to tie-in with the existing Elk Creek Canyon road. As noted in Section 2.04.4, it has
been determined that the Somerset Cemetery is not eligible for listing on the National Register of
Historic Places. In addition, road construction was planned and implemented to avoid disturbance of
or impacts to the cemetery.
For purposes of characterization and discussion, this road can be segregated into three segments. For
all road segments, road width and grade are appropriate for the volume of traffic and weight and
speed of vehicles that use the road. The road is gravel-surfaced and approximately 30 feet wide,
providing for two-way traffic over the entire road. Maximum speed limit for this road is 15 miles per
hour. Cut slopes are no steeper than 7.OH:1V (except in rock where cuts may go up to 0.3H:1V) and
most fill slopes at 1.SH:1 V or less. The entire road is within the mine disturbance area as defined by
Rule 4.05.2(4) and many of the performance standards under Rule 4.03 are, therefore, not applicable.
The West Valley haul road was designed by Balaz & Associates and a stability analysis for the road
was completed by Lincoln Devore as documented in Exhibit 2.05-E2, Geotechnical Design and
Stability Analyses. Road plan and profile configuration is shown by a Facilities Detail Map, {Map
series 2.05-M3x) and by the design drawings included in Exhibit 2.05-E2.
The first segment of the West Valley haul road extends from the existing mine employee parking area
to the switchback adjacent to the West Valley Fill. This segment of the road will be used for haulage
of coal refuse and mine development waste to the West Valley fill, general mine traffic, access to Elk
Creek Canyon and the Elk Creek Mine, and public access to the Somerset Cemetery. This section of
the road was constructed as a cut-fill road across the hillslope, is approximately 1,600 feet in long, and
• has an average grade of approximately 8.0 percent.
The second segment of the West Valle}' haul road extends from the switchback adjacent to the West
Valley Fill to the Somerset Cemetery. Traffic on this segment of the road will be the same as for the
first section.
TR-43 2.05-27 Revised August 2003