2022-09-29_PERMIT FILE - C1980007A ‎(2)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 9/29/2022
• Doc Name: STREAM CHANNEL PARAMETERS
• Section_Exhibit Name: Exhibit 55B Stream Channel Parameters and Changes Due to Mining-Induced Subsidence
• Media Type: D
• Archive: Yes

Stream Channel Parameters and Changes
Exhibit 55B Due to Longwall Mining-Induced Subsidence Page 15

831-032.923 Wright Water Engineers, Inc.
December 2021
Although the changes in slope may impact the geomorphic characteristics of the channel, the
potential for adverse impacts to stream function remain low. The dominant discharge will
naturally shape a channel dimension that will be in dynamic equilibrium with the existing up- and
downstream reaches that are not impacted by the subsidence.