BOARD02329

• Board Meeting Date: 7/23/2002
• Description: CF Section - Riverside Ditch and Allen Extentsion Company - Ditch Rehabilitation
• Board Meetings - Doc Type: Memo

Riverside Ditch and Alien Extension Company
July 23.24. 2002

Agenda Item 19b.

Proiect Description
. Three alternatives were analyzed in the feasibility study:

1. No Action
2. Replace the main trestle ($35,000)
3. Replace all 3 trestles($67,000)

Alternative 2, Replace the main trestle ($35,000), would solve the majority of the problems, but
would leave the Company to deal with the high maintenance costs of the 2 remaining trestles.
Alternative 3, Replace al/3 trestles ($67,000), would complete all needed improvements at this
time. This alternative is feasible and is considered the preferred alternative by the Company.
The no-action alternative was considered unacceptable since it would leave the Company to
deal with the high maintenance costs and water loss associated with the deteriorated trestles.

Selected Alternative 2 consists of replacing 3 existing trestles with 3 separate sections of
buried siphon pipeline with a combined total length of 566 feet. The siphons would be
constructed of 80 psi rated PVC, and include engineered inlet and outlet structures. The pipe
size would vary between 24 and 36 inches depending upon position along the canal and other
design factors, and would be capable of carrying the Company's water right.

The implementation schedule calls for completion of financing arrangements in summer 2002.
Final engineering design will be completed in summer 2002, and construction will be completed
in fall 2002.

.

Financial Analvsis
The total estimated cost of the project is $67,000 (including engineering costs). Funding
sources are shown in Table 1:

a e : rOJect un ma ources
Fundina Source Grant Loan
NRCS Plannino and Desion $17,000
CWCS Loan $50,000
Total ($67,000*) $17,000 $50,000

T bl 1 P" F d" S

(*The RDAEC will cover any costs exceeding the estimated project cost.)

Water is used for agricultural purposes and the Staff is recommending a Small Project loan in
maximum amount of $50,000. The recommended loan terms are 30 years at 2.75% or 20 years
at 2.5%, at the borrower's option.

Alternative financing sources: The Company actively sought alternative financing. They
were able to get an in-kind grant from the NRCS to cover project planning and design (value
about $17,000).

Table 2 is a summary of the financial aspects of the project with a $50,000 CWCS Loan. The
annual payment would be $2,716 (including the 10% reserve requirement) at the loan terms of
2.75% for 30 years. This represents $0.68 per acre-foot, based on average annual diversions of
4,000 acre-feet.

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