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Last modified
9/26/2011 8:52:20 AM
Creation date
7/9/2008 2:18:41 PM
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Decision Support Systems
Title
SPDSS Task 5 - Key Structure, Julesburg Irrigation District
Description
The Julesburg Irrigation District has been identified as a key structure for the South Platte Decision Support System (SPDSS) consumptive use and surface water modeling efforts. The purpose of this Task 5 memorandum is to document physical, legal, and operational aspects of those key structures identified.
Decision Support - Doc Type
Task Memorandum
Date
3/9/2004
DSS Category
Surface Water
DSS
South Platte
Basin
South Platte
Contract/PO #
C153954
Grant Type
Non-Reimbursable
Bill Number
SB01-157, HB02-1152, SB03-110, HB04-1221, SB05-084, HB06-1313, SB07-122
Prepared By
Leonard Rice Engineering
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PHYSICAL INFORMATION <br />Harmony Ditch No. 1 conveys both direct flow and storage diversions on behalf of the District. <br />The District owns 100 shares (14%) in Harmony Ditch No. 1 Company and is responsible for <br />operating the ditch headgate at the river. Harmony Ditch No. 1 diversions can be made on a year <br />round basis. During the irrigation period, diversions are primarily made on behalf of users <br />within the Harmony Ditch No. 1 Company. Users in the ditch company can take as much water <br />as needed to irrigate their lands, which is approximately 50 to 60 cfs. The remaining amount of <br />diverted flow is used as direct flow irrigation within the District, when the storage water right is <br />not in priority. The District cooperates with the Harmony Ditch No. 1 Company to limit the <br />diversion rate in the ditch to a maximum of 350 cfs. This limitation prevents possible damage to <br />the farms in the service area that may occur when the ditch runs at the maximum capacity. <br />Harmony Ditch No. 1 also serves as an alternate point of diversion for direct flow rights <br />historically diverted at the Settlers Ditch headgate. Settlers Ditch is operated such that 13.8 cfs <br />of the total 51.87 cfs direct flow right is provided by District return flows, with the remaining <br />flow diverted at the Harmony Ditch No. 1 headgate (alternate point of diversion) and conveyed <br />to Settlers Ditch. Settlers Ditch is considered a gaining reach from the historical diversion <br />headgate to the Sedgwick County line. From the Sedgwick County line to Lodgepole Creek, the <br />ditch experiences minimal seepage losses. <br />Petersen Ditch diverts direct flow for <br />irrigation on behalf of the District. The <br />District owns 130 shares in the Petersen <br />Ditch Company and is responsible for <br />operating the ditch headgate at the river. <br />The proportionate amount of water not <br />owned by the District is delivered to users in <br />Colorado and Nebraska. Petersen Ditch is <br />considered a gaining reach from its headgate <br />at the South Platte River to Lodgepole Creek. <br />The ditch experiences seepage losses from <br />Lodgepole Creek to its terminus in Nebraska. <br />Overall, the seepage losses in the <br />downstream reach are approximately equal to <br />the gains received in the upstream reach. <br />Seepage losses on Petersen Ditch and <br />irrigation return flows from lands served by <br />the Petersen Ditch accrue to the South Platte <br />Ditch prior to the State line. <br />In 1995, the District filed an application to the Water Court that will allow the District to provide <br />recharge water for augmentation purposes within the District and allow the leasing of recharge <br />credits to entities outside of the District (Case No. 95CW283). The District will recharge <br />approximately 185 cfs in three reaches of the Petersen Ditch. The recharge amount will be <br />measured at a gage on the Petersen Ditch at the Lower South Platte Recharge Area and can also <br />Julesburg Irrigation District.doc Page 4 of 12 <br />Sander&ngs ax Julesburg Reservoir <br />
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