C150208 Feasibility Study

• Contract/PO #: C150208
• Contractor Name: High Line Canal Company
• Contract Type: Loan
• Water District: 17
• County: Otero
• Loan Projects - Doc Type: Feasibility Study

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LAND OWNERSHIP

The agricultural lands in the High Line Canal Company's service area include private
farms, ranches and scattered home sites. All agricultural lands serviced by the High Line
Canal Company are privately owned.

.The High Line Canal Company has a 100-foot wide easement at the Smith Arroyo
crossing. The 100-foot easement width includes 60 feet on the downgradient side from
the centerline of the existing canal (and pipeline crossing of Smith Arroyo)
and 40 feet on the upgradient side from the canal/pipeline centerline.

WATER RIGHTS

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The High Line Canal Company reports an existing decreed direct flow water right 1
cubic feet per second (cfs) for the High Line Canal at the location of the A ish a River.
At the Smith Arroyo crossing, the reported irrigation water demand is reduced to two-
thirds (2/3) of the 501-cfs water right, or 334 cfs. This 334 cfs is used to provide
irrigation supply water below the Smith Arroyo pipeline crossing. The water rights
associated with the High Line Canal are listed below, including appropriation dates in
parentheses.

1. 40 cfs (12-31-1861)
2. 0.6 cfs (09-01-1867)
3. 16 cfs (07-01-1869)
4. 32.5 cfs (03-07-1884)
5. 30 cfs (06-30-1885)
6. 2 cfs (03-11-1886)
7. 380.5 cfs (01-06-1890)

The average annual amount of irrigation water diverted through the High Line Canal
system reportedly is 100,000 acre-feet.

NEED FOR THE PROJECT

Several years ago, the High Line Canal Company proposed a replacement pipeline for
the existing concrete-encased redwood stave pipeline system at the Smith Arroyo
crossing. In July 1999, Mr. Brice Boesch of Boesch-Fisher Engineering, Inc. (B-F) in
. Highlands Ranch, Colorado and two High Line Canal Company Board members, Mr.
John Vernon Proctor and Mr. Vernon Proctor (president of the High Line Canal
Company Board at that time), inspected the existing pipeline. Their fmdings included
an observed wood stave pipeline that was severely deteriorated with most of the wood
missing as well as significant spalling and exposed rebar from the deteriorated concrete
encasement. The concrete encasement has numerous and notable cracks and ground
water was observed to have been exfiltrating into the pipeline system. Based on Mr.
Boesch's recommendation at that time, the High Line Canal Company started to plan