Accession Number : ADA622885


Title :   Environmental Assessment, Repair of the Dam at Non-Potable Reservoir #1, United States Air Force Academy, Colorado


Descriptive Note : Final rept.


Corporate Author : 10TH AIR BASE WING COLORADO SPRINGS CO


Personal Author(s) : Aquino, Marie ; Caceres-Schnell, Carmen ; Castellanos, Nora ; Helms, Brandi ; Jury, David ; Keller, Angela ; Mall, Matthew ; Roecker, Jennifer ; Sullivan, Thomas ; Yang, Fang


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a622885.pdf


Report Date : Aug 2015


Pagination or Media Count : 174


Abstract : The hazard classification of Non-Potable Reservoir # I was evaluated in accordance with the Colorado Division of Water Resources (DWR) Guidelines for Hazard Classification, and Rules and Regulations for Dam Safety and Dam Construction. This hazard classification was completed to support the design of dam modifications. Based on the hazard classification analysis and utilizing Colorado State Engineer's Office (SEO) criteria, the results indicate that Non-Potable Reservoir #I does not pose a significant threat to loss of human life, but does pose the potential for significant downstream property damage, as a result of a sunny day failure. Therefore, the dam has been classified as a Significant Hazard Dam. The purpose of the action is to repair the dam at Non-Potable Reservoir #I to minimize the potential for catastrophic failure. The intake and outlet pipes at the dam are in excess of 50 years old and its downstream embankment slopes are excessively steep and potentially unstable. Because of the over steepened downstream slope and the age of the intake and outlet pipes through the embankment, the dam is deemed to have exceeded its useful life and requires repair. The need for action is due to the potential damage to downstream infrastructure (i.e., Union Pacific Railroad), the presence of seepage, the oversteepened downstream slope, and the anticipated poor condition of the embankment piping.


Descriptors :   *DAMS , *ENVIRONMENTAL ASSESSMENT , *REPAIR , *RESERVOIRS , AIR QUALITY , ASBESTOS , CULTURAL RESOURCES , GEOLOGY , HAZARDOUS MATERIALS , HAZARDOUS WASTES , LAND USE , SOILS , TRANSPORTATION , UNITED STATES AIR FORCE ACADEMY , WASTE MANAGEMENT , WATER RESOURCES


Subject Categories : Civil Engineering
      Logistics, Military Facilities and Supplies
      Environmental Health and Safety


Distribution Statement : APPROVED FOR PUBLIC RELEASE