2018-08-10_GENERAL DOCUMENTS - C1982056

• Permit No: C1982056
• IBM Index Class Name: General Documents
• Doc Date: 8/10/2018
• Doc Name Note: For ‎(RN7)‎
• From: DRMS
• To: Twentymile Coal, LLC
• Permit Index Doc Type: Findings
• Email Name: TNL
• Media Type: D
• Archive: No

safety of the public users of this road as numerous boulders were trapped in the
trench/berm system.
Permit Revision No. 3 (PR -03) allowed undermining a significant portion of Routt
County Road No. 33 in portions of Sections 14, 22, 23, 27, and 28, TSN, R86W. The
Division published a notice on October 7, 1993 in the Steamboat Pilot providing the
opportunity for a public hearing concerning the undermining of approximately four (4)
miles of Routt County Road No. 33. These four miles of road lie within the area affected
by longwall panels 9R, 8R, 7R (PR -03), 6R and 5R (PR04). There was no public
response or concern voiced about undermining of the road. The applicant received all
necessary approvals from Routt County to undermine County Road No. 33. Special Use
Permit No. 92-233 issued by Routt County approved the undermining and subsidence of
County Road No. 33 as long as the conditions addressing appropriate road warning
signage, monitoring, and repairs are met by Twentymile Coal Company. Based on the
above information, the Division finds Twentymile Coal Company in compliance with
Rule (2.07.6(2)(d)(iv)) for the undermining of Routt County Road No. 33.
Approval of Permit Revision No. 4 (PR -04) on April 20, 1998, allowed for continued
mining in the Eastern Mining District of longwall panels 6R through 2R. Only panels 6R
and 5R had an impact to Routt County Road No. 33. Experience gained during
subsidence of panels 9R through 7R demonstrated that traffic on County Road No. 33
was not been interrupted as a result of the subsidence of the road. Subsidence of
Longwall panels 6R and 5R did not interrupt traffic on Routt County Road No. 33.
Approval of Permit Revision No. 5 (PR -05) on May 28, 2000, allowed longwall panel
12R to undermine a Twentymile sandstone outcrop in Section 14, TSN, R86W. Prior to
approval, Twentymile Coal Company committed to scaling loose rock on the slope prior
to undermining, and the use, as necessary, of concrete barriers along the north side of
Routt County Road No. 33, and chain link meshing draped over the face of the outcrop,
to ensure that rockfall would not reach the road. Subsidence of the longwall panel did
not interrupt traffic on Routt County Road No. 33.
Affected areas approved in Permit Revision No. 6 (PR6) on May 21, 2004, were more
than one-quarter mile from public roads.
Affected areas approved in Permit Revision No. 7 (PR7) on January 2, 2007, were more
than a mile from public roads.
Permit Revision No. 8 (PR8) approved the undermining of Routt County Road No. 27
with longwall panels 13LT, 14LT, 15LT, 16LT, 17LT and gateroads 12LT, 13LT, 14LT,
15LT, 16LT, 17LT, and 18LT, in Sections 23 and 26, TSW, R87W. The applicant
published a notice in the Steamboat Pilot for four consecutive weeks beginning on June
7, 2009. This notice provided the opportunity for a public hearing concerning the
undermining of Routt County Road No. 27. There was no public response or concern
voiced about undermining of the road, nor was there a request for a public hearing. Routt
County Board of Commissioners approved a Special Use Agreement (PP2009-008) to
allow Twentymile Coal Company to subside the county road. Signage, subsidence
Foidel Creek Mine 24 August 10, 2018