PROJ00527

• Contract/PO #: FS0024X
• Contractor Name: Florida Water Conservancy District
• Contract Type: Loan
• Water District: 0
• County: La Plata
• Loan Projects - Doc Type: Feasibility Study

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irrigation releases, 3) the water level preference of the divers
(90 ft to 100 ft of water depth would be acceptable), 4) the
higher the water level the more power produced the first year, and
5) the higher the water level the less of an impact on the fish-
ery. At elevation 8090 ft and 13,000 af capacity, the impact is
assumed to be minimal. The l4-year average water surface eleva-
tion for October has been 8099 ft.

Considering all of the above items, it presently appears that
the reservoir will be drawn down to approximately 8099 ft but no
lower than 8090 ft. This assumes that at the time of drawdown the
reservoir level is above 8099 ft and the irrigation season has
been completed. Should the year of construction be a dry year and
the reservoir level below 8090 ft, no modification to the eleva-
tion will be made. The divers are capable of working in deeper
water, but it requires more dives of shorter duration, to perform
the work, resulting in higher costs.

6.5 GATE REPAIR
After completing the above activities the gates can be
disassembled. Work on installation of the turbine and the gates
would have to be coordinated because both crews cannot simultane-
ously work in the gate chamber. The best procedure would be to
disassemble the upstream (emergency) gates and replace the seats
while the outlet is closed; then repair the downstream gates after
the outlet is opened. This would allow the outlet to be opened
sooner and normal operation resumed.

The brass seats are very expensive and sufficient time must
be available to do the work correctly. It is estimated that
approximately 35 hours are needed per gate.

The turbine does not need to be fully installed while the
outlet is closed. As will be explained in the next chapter, just

6.0-7