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STATE OF COLORADO <br />DIVISION OF WATER RESOURCES 1871 East Main Street <br />WATER DIVISION FOUR P.O. Box 456 <br />Office of the State Engineer Montrose, Colorado 81402 <br />Department of Natural Resources Phone (970) 249-6622 <br />Fax (970) 249-8728 <br />DAM SAFETY BRANCH <br />CONSTRUCTION INSPECTION REPORT <br />NAME OF DAM: Monument Dam <br />DATE OF INSPECTION: 4/30/08 <br />WEATHER: Sunny, Breezy, 65 deg F <br />DAMID: 400413 <br />INSPECTED BY: JPW <br />Contacts <br />Owner: Willy Kistler, MCRR <br />Present? <br />® Yes ? No <br />Engineer: Ivan Contreras, Barr Eng. ® Yes ? No <br />Contractor: Con-Sy, Inc <br />? Yes ® No <br />TITLE: Division 4 Dam Safety Engineer <br />Other Attendees <br />Henry Barbe, Mountain Coal Co. <br />Rick Johnson, Mountain Coal Co. <br />Brad Lindsay, Barr Engineering <br />Jim Norfleet, JN Engineering <br />Keith Glaxner, West Elk Land Surveying <br />Mickey Denison, West Elk Land Surveying <br />Reason(s) for Inspection: <br />• Pre-final inspection of modification project, Construction No. C-1676A <br />• Inspection of Conditional Storage contingency items outlined in 2/29/08 approval letter <br />• Final inspection of staff gage, upstream slope, and emergency spillway <br />Observations / Construction Activities: <br />Gage Rod <br />• A drawing detail for the Gage Rod had not been received by the Division 4 office prior to the current <br />inspection. Therefore, the inspection was based solely on observations and the comments from Ivan <br />Contreras from Barr Engineering. <br />• The gage rod was constructed along the far left end of the upstream slope, offset from the end of the <br />riprap treatment by approximately 5-10 feet and located approximately 20-ft right of the entrance to the <br />emergency spillway. The gage is constructed of 2-inch diameter steel pipe with numbered markers at <br />5-foot vertical increments, tabs at every vertical foot, and spot welds at every vertical tenth of a foot. <br />The gage rod is welded to steel pipe supports in the embankment spaced approximately 15-ft apart. <br />• Brad Lindsay indicated the staff gage markings were surveyed by West Elk Surveying. <br />• The low end of the gage rod is marked at 10-ft above the concrete lip of the outlet intake structure. A <br />vertical staff gage is located on the intake structure for measurement of the reservoir level from zero to <br />10-ft. <br />• It was observed that the first pipe support is not located at the upper end of the gage rod leaving a 6-8ft <br />section of unsupported pipe that was easily flexed with minimal effort. It was recommended that an <br />additional support be provided at the upper end.