UNDERGROUND COAL MINES OF CENTERVILLE, IOWA AND VICINITY MINE-RELATED PROBLEMS AND SUBSIDENCE POTENTIAL

M.R. Howes, M.A. Culp, H. Greenberg, P.E. VanDorpe


Iowa Department of Natural Resources, Geological Survey Bureau,
Open File Report 86-2, 1986, 93 p.

ABSTRACT


Extensive underground mining occurred in the Centerville area, Appanoose County, Iowa between 1850 and 1971. Coal production was exclusively from the Mystic Coal Member of the Labette Shale (Pennsylvanian). Both longwall and room-and-pillar mining methods were utilized with the longwall method being the predominant type. Although both crater and trough subsidence have occurred in other areas of Iowa with known underground mining, the Centerville area has relatively few reported mine-related problems, despite extensive undermining.

A map of all coal mines which could be located was compiled for Centerville and the surrounding area using available mine maps and other information. The map locates 228 mines which were categorized into four groups: 1) mines with known extent, outlined from mine maps; 2) mines with known extent, outlined from sources other than mine maps; 3) mines with unknown extent, locations accurate to within 1/4 mile; 4) mines with unknown extent, locations accurate to within 1/2 mile. Data for the mines located on the map, including mine names, dates of operation, and descriptive data (e.g. depth of the coal, mining method used, type of entrance) were compiled from Iowa Mined Lands Data System. This information is included as Appendices I and II. Appendix III lists 219 mines which probably operated within the study area, but which could not be located on the map because of inadequate records.