Laserfiche WebLink
• <br />• <br />831 - 032.793 <br />September 2011 <br />Spring 2011 Subsidence and Geologic Field Observations <br />Box Canyon, Apache Rocks, and South of Divide Mining Areas <br />The Minnesota Reservoir Robotic Total Station (RTS) surveys twelve monuments on the dam <br />(6000 series) and twenty -six monuments on the hillside south of Minnesota Creek Road (7000 <br />series). As a precaution, these monuments have been surveyed at least once per day since late <br />2008 when the station was operable. Unfortunately, the survey monuments were stolen and <br />required replacement in July 2010. A summary of both average height and longitudinal <br />displacement data obtained in fall 2010 in comparison to spring 2011 is provided in Table 1 of <br />Appendix C. <br />Wright Water Engineers, Inc. Page 12 <br />