EAGLE RIVER FLATS FY 00
28
default to a standby status, preventing the
EQUIPMENT IMPROVEMENTS
generator from starting or the pump from con-
This is the fifth year of operation of the
tinuing to run in a dry sump. The new stand-
pump systems and the fourth year of actual
offs that were designed to hold the switches
deployment. The systems have evolved sig-
did not hold up to the brackish water, so stain-
nificantly since the first unit arrived in 1995
less steel ones have been designed and will
for limited testing and developmental work.
be installed next season.
Table III15 lists some of the equipment
The three 1100-L doublewalled auxiliary
modifications that were implemented in 2000.
fuel tanks that were added this season to
These changes have further increased the sys-
complement existing tanks deployed last year
tems' reliability as well as decreased fuel con-
proved to be too heavy when fueled (1500 kg)
sumption. We are now at the point where
for even the Bell 212. They are still useful as
further modifications will result in only mi-
auxiliary tanks in the field but can only be
nor improvements in performance and reli-
moved by the Blackhawk when filled. Addi-
ability of the major systems.
tional discharge line hose for System 3 was
The control logic was modified so that if
installed, adding flexibility to the configura-
the low water switch becomes lodged in the
tion of the discharge line for that system as
down position or the high water switch be-
well as reducing the work required in the de-
comes lodged in the up position, the controls
ployment and retrograde of the line between
Table III-1-5. Equipment and system modifications for 2000.
Modification
System(s)
Date
Purpose
Result
Extended tide gate
---
May
Prevent flooding by tides >9.5 m
Successful up to 9.85 m
Rewired controls
All systems
May
Prevent fault due to stuck low-water
Implemented and tested
(down) or high-water (up) switches
successfully
Replaced check
All systems
May
Decrease backflow and leakage
Partially successful
valve seals
Added hose to
Sys. 3 (146)
May
More flexible configuration, easier in-
Successful
discharge line
stallation and retrograde of 12" line
Used slings to
All systems
May/Aug.
Decrease time helicopter time needed
Very successful
move pipe.
to move the pipe in and out of field
Used shackles on
All systems
May/Aug.
Speed the attachment / detachment
Very successful
load lift points
of loads, increase safety
Bobcat loader on site
--
MayAug.
Expedite moving of equipment, help
Very successful
with discharge line, reduce number
of personnel.
Added three 1100-L
Systems 4 and 5 May
Reduce number of required Black-
Tanks too heavy; useful
field fuel tanks
hawk refueling runs
addition, however
New video monitoring
Areas A and C
May
Better reliability, more coverage
Successful, but needs
system
further development work
New communication
Bravo Bridge
May
Lower cost of data transfer while
Successful; needs a little
link for met station,
increasing reliability, eliminate cell
more development work
DAS, and webcam
phone
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