2007-11-08_PERMIT FILE - C1981041A ‎(4)‎

• Permit No: C1981041A
• IBM Index Class Name: Permit File
• Doc Date: 11/8/2007
• Section_Exhibit Name: Tab 13 Operation Plan-Permit Area
• Media Type: D
• Archive: Yes

• conveys high flows across the road without eroding the road. Straw bale dikes are
installed along each edge of the dip section to settle and filter roadway drainage before
it goes to Coal Creek. A drainage ditch is installed on the west side of the road from
the dip section to the rail loop crossing, except along the northern 700' where a ditch is
installed along the east side of the road. The remainder of the road is elevated above
the adjacent ground to provide runoff drainage. See Appendix 13-1 for design of
drainage along the road.
Surfacing -Construction details are unavailable but the roadbase appears to be 1 -1'/i
of pit run gravel. The surface of the road is 3/4" roadbase gravel.
Maintenance -The road is watered regularly during use and graded as necessary. Mg-
CI is applied to the surface once or twice a year to reduce the watering requirements.
When grading the road the silt deposited on the dip section is graded off and the bales
are replace as necessary.
Structure
Location
Construction Dates
Haul Road 4
(Formerly Access
Roads #3a & b)
Coal Canyon, Exhibit 9A 1980 and prior to CRDA 3
51 and 52 construction.
• Description -This road is a portion of a BLM public access road that leads up Coal
Creek. The portion of the BLM road covered by this haul road designation begins
southwest of the Roadside North Portals operation area where Haul Road 4 turns off o
Haul Road No. 5 and leads along Coal Creek to the proposed Cameo Refuse Disposal
Area (CRDA) No. 3. Powderhorn upgrades and maintains this portion of the public roa
as necessary and will leave in the upgraded condition when finis ed using the road.
Currently 2600' have been upgraded to the west end of CRDA 1 ~ ~°F"`"" '`° ``/`~-'~~°~
Design and Construction -The alignment of this road has generally followed 17he long
term location for a narrow public access road. The road follows Coal Creek and
crosses the creek twice in the process. The maximum grade on the road is 4% and the
average grade is 1.7%. Due to the relatively level areas and the pre-existence of a
road minimal grading was necessary or will be necessary to establish the upgraded
road. The roadway width is approximately 30'. Figure 13-2 is a typical cross section for
the design of this road.
Drainage -Drainage control for this road includes ditches along one or both sides of
the road, two creek crossings and 4 locations for cross drainage. The ditches along
both sides of the road will be the typical drainage shown on Figure 13-3. Two 81 x 59"
CMP culverts were install for the lower creek crossing, see Appendix 13-1 for design
information. The second Creek crossing is a "dip section" consisting of 6-36"
f
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T13-2-3 (Rev. 1 /00 )