The republic. [volume] (Washington [D.C.]) 1849-1853, 1853-01-15
faorosAts roH DnEnaE-BoAr, &c.


Engineer Department, Jan. IL, 1853.
CEAtEp PROPOSALS, will be received until
tne ivtn FEBRUARY inclusive, for the Cunstruc-
.on, =, me nest material, and delivery at Balti-
. .iN a.yand' OF steam dredging machine,
slx dumping scows, and; one decksd lighter, for
coast = ~ y
The proposals will state separately the prices Of
the dredge- boat including machinery; dumnine
scows. each; and the decked lighter. ,"NiN'
The hull of the dredge must be strongly nut to-
gether, well kneed, bolted. and braced to be not
less than sixty feet in length, thirty feet in width
nd six feet hi depth. 70 have suitable slcepinp
and necessary accommodations for twelve men,
all requisite store-roo,ns, and storage for about
twenty tons Of coal. 3. ,tsssa -. ~
The machine must be capable of working in an
exposed situation, such as sea-way, being in
tended for operating in the waters of the Chesa
peake Bay and will be required to dig and raise
from depth of twenty, four feet OF water, and to
deliver into scows or lighters at least sixty cubic
yards of hard clay per hour, six hundred cubic
yards in a working day of ten hours. Afk
The six dumping scows must be strongly put
together, well kneed and bolted; each capable of
holding forty-fve cubic yards of dredged matter.
and to be so arranged as to discharge their loads
readily and at once from the sides of the scows in
a depth of four feet of water.
The decked lighter, which is intended for the
transportation of coal and other supplies Tor the
machine, must be strongly put together, well
kneed and boited, and capable Of carrying about
forty tons. - -
The dredge, with lis scows and lighter, must be,
delivered at Baltimore, Maryland, on or before the
fifteenth day of April next, ready for inspection
and trial BY the officer Of or such other
agent of the Government as may be appointed for
this purpose. The dredge and its equipment to be
ihocred at the expense .. the contractor, to such
part 6f the Patapaco river ma be designated by
the agent of the Government, aud there tested as
to its performance at the contractors expense,
which test must be in every respect satisfactory
and conforming to the conditions of the contract
No payments will be made account of the
dredge or its equipment until the whole shah fiave
been deli9 red inspected, and tested above pre-
scribed and received, when the contractor will be
paid in full. s8e.G Il Sos it
Parties Offering to contract for this dredge and
its equipment will state distinctly on what princi-
pie they propose to construct the machine; if pa
tented, the name of the patentee; whether simi-
lar machine has been built and subjected to trial;
and if SO, where, and under what circumstances;
giving the character Of the dredged matter and
the depth of water from which it was raised; nam
ing persons to whom reference can be had in re-
gard to the same. The dimensions of the hull of
the dredge, as we'll as of those of the dumping.
scows and lighter shotld be given, with the details
of their construction; also the power of the engine
for driving the machinery of the dredge, expressed
in number Of horses; and also in the diameter of
the cylinder and length of stroke of the piston,
and the pressure OF steam under which the engine
is ordinarily worked If practicable, drawings
should be Forwarded of the dredge complete. and
also the dumping scows AJ
Proposals will also be received for adding loco
motive power to the dredge, to be able to pro.
pei it, with lite scows and lighter, in still water at
the rate of six miles per hour; stating fully the
arrangement Of the motive power; and the change,
if any; such addition would make in the form and
dimensions of the hull of the dredgs and in the ar
rangement of the machinery.
Further particulars may be obtained by corre-
spending with Captain a. Beaverton, Corps of
Engineers, Baltimore, Maryland.
The proposals to be addressed to the under
signed, and marked on the envelope {" Proposals
for steam dredging machine, sc !, for the waters
of the Chesapeake Bay and atlantic coast.'
.E-Ers. ,E 4 s.l5FIhE Jos. G.. TOTEM,
Brevet Brig. Gen. and Col.j Engineers
To be inserted in the Republic, Intelligencer,
and Unions Washington; Courier and Enquirer, and
Express, New York; Albany Register, and Albany
Express, Albany, New York; Wing, Troy, New
York; Pennsylvania Enquirer, and Daily News,
Philadelphia, Pennsylvania; Boston Courier, Bos-
ton, Massachusetts; Patriot, Baltimore, Mary land
daily till 10th February One copy of each paper
containing the advertisement to be sent to the En-
gineer Department. Washington
Jan l4-dtl0Feb at.r