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Direct Flow Storage Direct (ityopr=16)

The type 16 operating rule allows a direct flow diversion's water right (ciopso(1)) to store in account (iopdes(2,1) of reservoir (ciopde). The amount stored may be limited by a maximum exchange percent (iopsou(4,1)); which is the same as 100 - a bypass percent. The following comments are provided to assist in using and interpreting this operating rule:

  • A water right may operate as a standard direct flow right and/or as a direct flow storage right. When the variable iopsou(2,1) = 0 is the right is used as a direct flow storage right only. When the variable iopsou(2,1) = 1 is the right is used as both a direct flow right and a direct flow storage right.
  • The source water right must be associated with 1 user (i.e. multiple users at the same diversion are not supported).
  • Because a direct flow storage right may be used to serve both a direct flow storage user and as a direct flow storage right, the Administration number assigned to the operating rule is used in the analysis (i.e. it is not overridden by the source water rights administration number).
  • Variable iopsou(4,1) allows the user to specify the maximum percent of the remaining decree that may be stored. This maximum percent is equivalent to 100 - a bypass percent.
  • Direct flow storage is limited to the irrigation season by evaluating the demand associated with the structure tied to the source water right in the direct flow demand file (*.ddm). In addition, the user may control seasonal demands using the monthly on/off switch (imonsw(i)).
  • The amount available for diversion is the minimum physical water available, remaining decree (e.g. some of the decree may have been used for direct diversion purposes), the exchange potential between the direct flow right and the reservoir, the maximum direct flow storage percent, the remaining reservoir volume, the reservoir target, the remaining reservoir account volume.
Row-data Variable Description
Control Data
1 Format (a12, a24, 12x, 4x, f12.5, f8.0, i8, 3(1x,a12,i8), i8, 1x,a12, 1x,a12,1x, 2f8.0, 2i8)
1-1 cidvri Operational right ID
1-2 nameo(1) Operational right name
1-3 rtem(1) Administration number
1-4 dumx Monthly and Structure Switch
+1 = Destination Structure ID (use to provide demand data when the destination is tied to a carrier)
-n = Include -12 monthly on/off values minus n destination structure IDs (use to provide demand data when the destination is tied to a carrier)
1-5 ioprsw(1) Annual On/Off Switch
0 = off
1 = on
+n = Begin in year n
-n = Stop after year n
Destination Data
1-6 ciopde Destination reservoir ID
1-7 iopdes(2,1) Destination reservoir account
Source Data
1-8 ciopso(1) Direct Flow water right ID
1-9 iopsou(2,1) 0 = The source water right (ciopso(1)) is left on (e.g. it can be used as a both a direct flow right and this operating rule)
1 = The source water right (ciopso2(1) is turned off (e.g. it can only be used by this operating rule)
1-10 ciopso(2) 0 (not used)
1-11 iopsou(4,1) Maximum direct flow storage percent
Type Data
1-12 ityopr(1) 16
Associated Plan Data
1-13 creuse NA
Diversion Type
1-14 cdivtyp NA
Conveyance Loss (%)
1-15 OprLoss 0
Miscellaneous Limits
1-16 OprLimit 0
Start Date
1-17 IoBeg First year of operation
End Date
1-18 IoEnd Last year of operation
Monthly Data
Free Format (Include only if the variable (dumx) = 12 or less than -12)
2-1 imonsw(1) Monthly switch 0 = off, 1 = on
+n = Day first used that month
-n = Day last used that month
Note the first entry corresponds to the first month specified in the control file
Demand Data
3 Format (36x, 10a12) (Include only if the variable (dumx) = +n or < -12)
3-1 Intern(1,1) Enter the destination structure ID (use to provide demand data when the destination is tied to a carrier)