CT2015-057 Feasibility Study

• Contract/PO #: CT2015-057
• Contract/PO #: C150366
• Contractor Name: Town of Windsor
• Contract Type: Loan
• Loan Projects - Doc Type: Feasibility Study

Table 8 -Lake Canal Storage Rights
Priority Adjudication Appropriation Decreed Volume
No. Date Date (acre-feet)
2 December 9, 1904 April 1, 1882 135
North Gray 50 December 9, 1904 November 1, 1902 140
77 April 22, 1922 November 15, 1904 57
3 December 9, 1904 April 1, 1882 275
South Gray 51 December 9, 1904 November 1, 1902 236
78 April 22, 1922 November 10, 1904 222
Gray No.3 76 April 22, 1922 November 14, 1904 111
Lake Canal 41 December 9, 1904 October 15, 1898 803
Reservoir No.1
Historical Service Area
From the headgate, the ditch services lands on the north side of the Cache Ia Poudre
River, northeast of the Cityof Fort Collins, in and around the Timnath area, and areas
north of the Greeley No. 2 Canal near the Town of Windsor. The Lake Canal system
currently services approximately 5,200 acres of farm and pasture land.
Water Availability
Based upon our conversations with officials at the Lake Canal, water is typically
available from May 15 to July 1 from the Lake Canal Ditch.1° Diversion records from the
State show small diversion amounts in July through October. The right is priority No. 54
on the river. Typically, there needs to be 1,000 cfs of river flow in the Cache Ia Poudre
River for the Lake Canal Ditch to divert.
Recently, the Lake Canal Reservoir has not yielded much due to the conditions of the
storage structures and low flows in Box Elder Creek. Rehab on Lake Canal Reservoir
No.1 should help with yields. Once Lake Canal Reservoir No.1 is completed, it should
function as the hub of the Lake Canal system. Lake Canal Reservoir shares are mostly
held by developers and municipalities because of its location.
Delivery and Consumptive Use
Monthly diversion records for Lake Canal Ditch from 1950 to 2005 average 33.0 acre-
feet per share. Assuming an average system ditch loss of 15 percent, the pro-rata farm
headgate delivery would historically have been around 28.0 acre-feet. Assuming a
historical irrigation efficiency of 50 percent, approximately 14.0 acre-feet of consumptive
use credit might be reasonable from these shares. According to our conversation with
Mr. Shawn Hoff, shares in the Lake Canal Reservoir yield around 10.0 acre-feet.
10 Personal communication with Shawn Hoff