The Fort Peck press., 1935-07-18
81 Feet in Diameter to be
the Full Size of 4 Tunnels

the delays, Wunderlich is still
ahead of schedule bv over 100000
cubic yards.
The Massman Cons. Co. is now
working part of their equipment
down toward the lower end of the
spillway channel. Ahead of SCH
edule by a comfortable margin,
they estimate that they will have
completed the excavation work
by September, although operations
will soon become somewhat re-
stricted in the narrowing portions
of the spillway. However, con-
tinued careful planning Of the Sc
quence of cuts made by the shO-
vels should enable them to main
tain the present daily rate of out
put.
Addison Miller Inc. and Fielding
& Shepley IDc. contractors for the
Splllway gate structure, will have
their new central concrete mixing
plant ready for operation by the
end of this week. Work continued
on the conveyOr system from the
aggregate stock piles owe to the
mixer plant. A cement pump,
with necessary piping system, is
busy unloading cars of bulk cement.
Erection of the machine shop COZ
tinued. Concrete counter. balances
for the new stiff-leg derrick were
poured.
A new type boring machine
driven by an 80 h. D. electric motor
was tried out with very promising
results. The machine demonstrate
&c its ability 10 bore a hole in the
shale 3 feet in diameter and Is
rect deep, in about N hours time.
The design for the foundations of
the spillway gate structure calls
for holes 5 and 6 feet in diameter
from 80 to 40 feet deep. A larger
bit of a different type will be used
for the full,size holes. The new
bit will scarify the -shale rather
than cut it with a knife-llke action.
With a longer shaft, this should
enable the machine to improve its
performance. The holes will be
filled with concrete to form cast.
in place piles for the support of the
structure.
Continuous dredging operations
have put the base of the dam
in shape" That is, all four sec
tors, with enclosing dikes. have
been built up SO that the crews on
the fill can settle down to a more
routine cycle of operations. The
temporary spill ways for the re-
lease of dredging e%ffiuent water
from the core pools are now out
of the picture" The two main
opillways are i'll operation. On
the west side, the level of the core
pool is now at elevation 2067.
been raised from about ele-
vation 2042 at the start of the
1redging season. Over 100000
cubic yarps have been pumped
rom the upper barrow pit to date.
Higher river stages, acc0mpan-
ed by driftwood. resulting from
he recent heavy rains. caused
ONE delay on the steel sheet pile
ut off wall across the river. How
:ver, driving has again started and
he sheeting across the l9O-foOt
is nearly all in place.
operations on the west abutment
ave been hampered by lack of
efficient wafer for the jets.
Government Workmen are erect
Ig a welding shop nea the ma
.ine shop on. the flood plain
he new building will be SO 100
Get in plan, one story, wood frame
it'll insulated walls and roof. Cor
lgated sheet metal covering will
e used. A lotion travelling crane
aving a 14-foOt span will be
on steel supports inside
lie building. A dirt floor will
for the heavy castings brot
from the dredging units. A large
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