PROJC02275 ‎(2)‎

• Contract/PO #: C150166
• Contractor Name: East Fork Mutual Irrigation Company
• Contract Type: Loan
• Water District: 50
• County: Grand
• Loan Projects - Doc Type: Feasibility Study

Project Description and Alternatives
The purpose of this project is to repair the leaks in the 72-inch diameter C1VIP joints, to repair/restore the
failed areas, as well as the landslide debris to prevent further slope failures, and erosion and siltation of the
drainage. Construction of a concrete headwall and endwall at the upstream and downstream ends of the
CMP will also be considered after the ultimate extents of the CMP installation have been determined. The
following alternatives have been developed for the three phases of this project_
Phase 1-Repair Leaking CMP Pipe
The leaks in the existing pipe joints are contributing to the landslides developing downslope of the ditch
and pipe. The following alternatives are being considered for this phase of the project.
~ 1. No Action
2. Lining approximately 1,060 feet of pipe ($150,000 estimated)
3. Installing internal bands at the joints ($80,000 estimated)
Alternative No. 1 was unacceptable as continued leakage from the pipe would keep water in the existing
slide areas and possibly cause additional slides/slope failures.
Alternative No. 2 was ruled out because of cost and the concern of a guarantee of work and leakage.
Alternative No. 3 was selected due to the estimated cost and cone-year guarantee of the work by K.R.
Swerdfeger Construction, Inc. They will do the design and work per the following cost
breakdown.
Item Quantity Unit Unit Price $ Amount $
Mobilization 1 Job. 6,300 6,300
Joint Seals 43 Joints. 1,575 67,725
Reround Joints 43 Joints 3,200 3,200
~ Weld Holes and Bends - Job 2,750 2,750
Total for Alternative No. 3 $ 79,975
Phase 2 -Constructing Concrete Headwalls and Endwalls
1 No Action
2 Construct Concrete headwalls 'and endwalls at upstream and downstream ends of the CMP
($20,000 estimated)
Alternative No. 1 was unacceptable, as the flows in the ditch will begin to undermine the pipe resulting in
additional water loss and possible slope failures.
East Fork Ditch Repairs Feasibility Study December 2003 Page 6