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Last modified
9/26/2011 8:37:05 AM
Creation date
7/9/2008 12:37:11 PM
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Decision Support Systems
Title
SPDSS Task 5 - Key Structure, FRICO-Milton Lake Division
Description
The FRICO–Milton Lake Division 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
3/3/2005
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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OPERATI O NAL INF O RMATION <br />Irrigation Season <br />All of the FRICO – Milton irrigation dem a nds ar e located below the reservoir. During the <br />irrigation season, FRICO–Milton irrigation dem a nds are m e t using releas es from Milton <br />Lake. W a te r can be released from Barr Lake to the Beebe Canal via the West Burlin gton <br />Extension D itch in conjunction with or inde pendent of releases to the Speer and W e st <br />Burlington and via the N e res Canal in conjuncti on with or independent of deliveries from <br />Barr to the Neres or East Burlington Extensi on D itch. Throughout the irrigation season, all <br />flows are diverted from the Beebe C a nal in to the East Neres Canal. Flo w s accruing to the <br />Beebe Canal below the E a st Neres b i furcation m a y be diverted into Milton Lake. Diversions <br />to Beebe Canal are not m easured but estim a ted by the ditch rider to be about 10 – 15 cfs at <br />Barr Lake to obtain 20 – 25 cfs at the East Neres headgate. <br />Non-Irrigation Season <br />During the non-irrigation season, seepage and re turn flows from Beebe Canal accrue to <br />Milton L a ke. Typical seepage wa ter flow collected in Beebe Ca nal near the toe of Barr Lake <br />is estim a ted at 3 to 5 cfs and increases to 5 to 8 cf s at Piccadilly Road. The water is delivered <br />to a num ber of s m all reservoi rs located between Barr Lake and Milton L a ke, with any <br />rem a ining water delivered to Milton Lake. The Bowles Seep and East Neres headg a tes <br />rem a in closed. The flow at Milton L a ke is estim ated to be around 10 – 15 cfs. A water <br />balance analysis com p leted by FRICO shows that on average, around 6,300 acre-feet per <br />year flows from the Beebe Canal to Milton Reservoir, with around 5,500 acre-feet occurring <br />during the months of October through April. <br />Reservoir Accounts: <br />There are 1647.837 shares in Milton La ke with delivery averaging around <br />7.5 acre-feet per share. Shares under this reservoir have a be tter yield than shares under <br />the Barr Lak e System , however the s y stem is still water shor t. <br />Where to find more informatio n <br />The W a t e r District 2 Meeting Notes prepared for SPDSS Task 3 – Identify Key Diversion <br />Structures contain additional information on ditch and reservoir ope r a tio n s within this <br />water district. <br />The FRICO–Barr System SPDSS Opera ting Mem o randum contains a ddition a l <br />inform ation on Beebe Canal. <br />The Irrig a ted Acre ag e Assessm ent GIS Cove rage prepare d for SPDSS displays the <br />boundary of the FRICO service area. GIS c overage is available on the CDSS website <br />(cdss.state.co.us). <br />FRICO_Milton.doc 9 of 10 <br />
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