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<br />i <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />Colorado Water Conservation Board <br /> <br />Department of Natural Resources <br />721 Centennial Building <br />1313 Sherman Street <br />Denver, Colorado 80203 <br />Phone: (303) 866-3441 <br />FAX: (3031 866-4474 <br /> <br />STATE OF COLORADO <br /> <br />- <br /> <br />MEMORANDUM <br /> <br />Roy Romer <br />Governor <br />James S. Lochhead <br />Executive Director, DNR <br />Danese. Ule, P.E. <br />Director, eweB <br />Peter H. Evans <br />Acting Director, eweB <br /> <br />TO: Colorado Water Conservation Board Members <br /> <br />FROM: Larry Lang <br /> <br />DATE: September II, 1998 <br /> <br />SUBJECT: Agenda Item 13e, September 21-22, 1998 Board Meeting-- <br />Status Report on the Arkansas River on the Arkansas River Channel <br />Restoration Study <br /> <br />BACKGROUND <br /> <br />Following flood events on the Arkansas River in 1995, the Colorado General Assembly <br />passed SB 96-124. Section 2 of the Act authorized the Colorado Water Conservation <br />Board to contract for a study which would investigate problems related to flooding and <br />identify and evaluate potential solutions to address channel conveyance, sediment <br />deposit, vegetative management, reservoir operations, and riparian removal and <br />plantings. <br /> <br />The study was divided into two reaches. They are: I) Lower reach: John Martin Reservoir <br />(JMR) to Colorado/Kansas state1ine, and 2) Upper Reach: JMR upstream to the Pueblo/Otero <br />County line. Additional aerial mapping and groundwater analysis initiatives were identified <br />for the Upper Reach once the study process was uudertaken. For the Lower Reach, the Board <br />has an accepted workplan. <br /> <br />The workplan, which is currently under contract between the CWCB and Albuquerque <br />Corps for the Lower Reach, includes I) hydraulic/sediment investigation, 2) historical <br />flow paths, 3) reconunendations for channel maintenance activities, 4) review of <br />reservoir operations, and 5) vegetative management. The aerial mapping and field data <br />collection portion of the study were contracted and obtained and were the sole <br />responsibility of CWCB. <br />