Semi-weekly standard. [volume] (Raleigh, N.C.) 1853-18??, 1853-11-09

lock one at the tail, and under each mitre Sill
The sand will beexcavated to LOT the
extent of the pudding. The outside OF the toundas
and grooYed and well secured to the tmbers upon
which the plankink of the lock bottom rests. The
entire space between piles viii be ted with such
material as may be approved, up to level WITH the
top of the mbers connecting the heads of che piles
The lock ac0ILs will be ID x inches high and 10
feet thick they will be formed by courses of range
mbers connected by ties every 10 feet; the tmbers
to be 10 - inches and secured to the ties by dove
tailed Joints and trunails The cribs thus formed
will be filled with suitable packing if it can be found
in natural state if not, strong tacines will he con-
structed of suitable dimensions filled with material
of sufficient specific gravity and the crib walls pack
ed with these in layers These facines simply
cylindrical hurdles, formed by strong mailing upon
upright sticks of inch diameter, with heads to fit
They are extensively used in Notifications, and all
works of art where stone cannot be had The inner
sides of the lock walls will be lined with two courses
of sheeting; the first course of 2 inch plank, and
the second course of inch plank Each course to
be iointed to water tight lock chambers
There will be one course of inch sheeting secured
upon the outside of the lock walls, and coping
course on the top. The tmbers will be rabtted to
receive the ends of the plank, and secure strong
and workmanlike finish The planking will be Sc
cured by spikes and stout nails, in such numbers as
will be designated. The will be 1S inc hes
deep and lined in the same way as the lock-chamber.
The inter ss hollow quoins and lock getes will be
formed out of such timber may be approved, and
in accordance with plans and drawings to be furn-
ished. There viii be pier-head extending up the
river, in line with the prolongation of the inner
side of the outer lock wall, to form safe bay for
boats in entering and passing out of the locks.
DAMS.
These dams will be provided with aprons to receive
the shock of water from the over fall and prevent
securing out below the dam. There will be four rows
of piles properly shod and driven four feet apart
across the river into the substratum. These piles
will be connected by - X II timbers in such man.
may be directed, and sheeted with inch
plank. This apron will be sheet-pied upon the up
per and lower sides, and upon this apron will be
structed brush dam. By using pine saplins the
butt ends of which will be boxed into longitudinal
timbers and bolted upon each layer of sapn there
will be placed proper coursing of suitable material
then another course of saplns, and so on until
the same is raised to its proper height. The top
course of filling the dam will be covered and pro-
teeted with facines if other suitable material can
be found. The dam will batter up stream inches
to the foot The abutmentS will be formed upon the
same principle and sheted the three exposed
Sides and protected by guard bank on the up
stream side faced with facncs The apron will be two
feet below the pond-water of the dam next below,
so that it will always be submerged
ESTIMATE.
The first dam, including abutments, &C., $500
I" lock, =" every thing, Il, 73S
Total, including contingencies, :. sl6,5as
The second dam, including abutments, s 3,778
lock, every thing, 1O,6SS
Total, including contingencies, $14,466
The third DAM including abutments, 5 1855
=" lock, every thing, 10,6S8 |
s14,o76
Amount brought forward, $45,08O
The fourth dam, including abutments, 1925 |
q" lock, every thing, 1O,6S8 |
$5s,7ss
from the banks, and 5@' dredging, &C., $15,eoa
M /