Laserfiche WebLink
SPDSS Memorandum <br />Final <br />To: <br /> Ray Alvarado and Ray Bennett <br />From: <br /> LRE – Mary Presecan and Erin Wilson <br />Subject: <br /> Task 5 – Key Structure, Harold D. Roberts Tunnel <br />Date: <br /> April 6, 2004 <br />INTRODUCTION <br />One of the Task 5 objectives is to: <br />Develop and document an understanding of the op erations of key wate r use facilities in <br />the basin in order to facilitate consumpti ve use modeling and to support selected data <br />needs for modeling being done by other contractors. This understanding will be <br />developed through interviews with DWR pe rsonnel, operators of large canal and <br />reservoir systems, and representa tives of federal facilities. <br />Types of key water use facilities include di version structures, transmountain diversions, <br />reservoirs, and reservoir systems. <br />Key diversion structures, identi fied as part of Task 3, incl ude structures representing 85 <br />percent of net decreed rights, structures dive rting greater than 1,000 acr e-feet per year (ac- <br />ft/yr), and structures of administrative importance. <br />Key transmountain diversions, identified as part of Task 4, include th ose structures that <br />transport non-native water from another ba sin into the South Pl atte River basin. <br />Key reservoirs, identified as pa rt of Task 5, include reservoi rs or reservoir systems with <br />greater than 10,000 acre-feet (ac-ft ) capacity and/or reservoirs that should be included in <br />potential future modeling efforts due to thei r impact on basin operations. Reservoir systems <br />are defined as a group of reser voirs on the same tributary or filled by the same diversion <br />structure that satisfy a common demand or are operated in a similar fashion. <br />The Harold D. Roberts Tunnel has been identif ied as a key structure for the South Platte <br />Decision Support System (SPDSS) consumptive use and surface water modeling efforts. The <br />purpose of this Task 5 memorandum is to docum ent physical, legal, and operational aspects of <br />those key structures identified. <br />Table of Contents Page <br />The information provided in this memorandum was <br />Introduction 1 <br />developed from publicly accessibl e sources. Information in <br />System Overview 2 <br />this memorandum is believed to be accurate. However, this <br />Physical Information 4 <br />information should not be relied upon in any legal <br />Water Rights 6 <br />proceeding. <br />Operational Information 7 <br />Comments and Concerns 8 <br />References 8 <br />