WSP06513

• File Number: 8449.912
• Description: South Platte Projects - Two Forks
• State: CO
• Basin: South Platte
• Date: 2/1/1966
• Author: USDOI/BOR
• Title: Status Report on Two Forks Dam and Reservoir
• Water Supply Pro - Doc Type: Publication

UPPER SOUTH PLATTE UNIT, COLORADO

Water Budget

,

-
HistorlC .. UltImate
Item Supply Use Outflow Supply Use Outtlow
Metro. Other Metro. Other
Inflow to Two Porks:
Homestake Project 0.0 3l.f.9
South Platte River 13".9 137.3!/
North rork So. Platte River 99.1 99.1
Roberts Tunnel 0.0 235.9
Subtotal 23".0 80.0 - , 15".od 507.2 496.7 10.5~ --0:0
--
Tributaries - Two Forks to
Clear Creek
Plum Creek 18.1 0.0 0.0 18.1 18.1 0.0 O'Od 18.1
Bear t Turkey Creeks 39.~ 2.8 25.2 11." 39." 3".1~ 0.0_ 5.3
Cherry Creek 11." 1." 0.0 10.0 11." 5.0 0.0 6."
Subtotal 6'8.'9 ~ ""'2'5":2 ""39":5 6'8.'9 3"9.T --0:0 ""'2'9.8
Moffat Supply to Metro Area "8.9 48.9 0.0 0.0 107.2 147.2 0.0 0.0
Totals Above Clear Creek 351. 8 133.1 25.2 193.5 723.3 683.0 10.5 29.8
Metro Supply from Clear Creek 13.0 13.0 0.0 0.0 63.6 63.6 0.0 0.0
Total Metro Supply 36".8 1"6.1 25.2 193.5 786.9 7"0.6 10.5 29.8
eturn flows above Clear Cree lC.!
Above Denver gage 15.2 15" .3
Flow at Denver gage 208.7 'f8ii':T
Below Denver ~age ".8 10.7
Metro Sewer Outflow 61.3 320.4
Total Outflow above Clear Creek '2"i4.8 SID'

(1 000 acre feet)

"

. Average annuals 1947-1961
at Change from historic reflects change in operation of upstream reservoirs.
n/ Includes required bypass for downstream agricultural and M&I rights as well as
unregulated surplus flows.
c/ Evaporation from potential Two Forks Reservoir.
~ Reflects agricultural rights conversion to municipal use under ultimate project
operation. as well as increased municipal use.
e/ Return flows from Clear Creek Metropolitan supplies not considered because they
occur physically below the Metropolitan sewer outflow.

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Revised 2/66