The republic. [volume] (Washington [D.C.]) 1849-1853, 1853-03-05

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EALED PRcP ao6s.zfess I'll, february M lsa;
~ offlce until the 3oth -of March, 1853, for the
construction and delivery 1t Savannsh. Georri. ,
Of one Steam Dredging Machine, one Tns-boa
san ioaI scaws. sA g be 81 the best ma tersais.
delivering into scows at least sxty cubic yards
per hour. or 600 cubic yards in a working dav Of
ten hours; the materials to be dredged are sand,
aud sand and soft mud mixed; the depth of water
varying from seven feet to eighteen feet at low
water according to locality; the rise of the tide 81
feet. The hull Of the dredge-boat must be built
in the Most substantial manner, and the engines
must be 30 arranged that they can be applied to
propelIing the dredge to and from the shoals upon
ing and other accommodations provided for twelve
men. storc-ro0ms, coal-bunkers capable of hold
ing fifteen TOMS and = smiths forge. The vessel
must be delivered at Savannah, Georgia, with its
machinery in complete working order, and the
offers will state the date of proposed delivery,
ready for inspection and trial BY the officer of en-
glneers, or such other agent of the Government as
may be appointed Tor this purpose The dredge
and Its equipment to be moored, at the expense of
the contractor, in such part of the Savannah river
as may be designated by the agent of the Govern
ment and there tested as to its performance at the
contractors expense, which test must be in every
respect satisfactory, and conforming to the condi
tons of the contract. a'tksEs - sss-g-.sfr,5
The steam tug must also be built in the most
substantial manner; to be provided With cabin ac.
commodations for the persons required to work
her-elght IN number; her timbers to be white oak.
live oak, cedar, or locust, framed with the grain,
her plank of the best Southern pine; workmanship
to be done in substantial manner; the hull and
upper works to painted with three coats to have
two low pressure engines Of twenty. horse power
each. go arranged as to be capable of being Quick
iyreversed, and when running in the same way to
move without strain. The tug must be furnished
with complete ground tackle and allequipage of
every description whatever necessary to At her for
the business of towing. on II sise3 :
The four dumping scows to be fifty feet in length
by sixteen in width; to have wells thirty six feet
by eleven at top, and closed with two valves form
ing the bottom of the we'll; windIass for closing
the valves; bits at the bow and stern of six by <
inch white oak, securely stepped; to be planked
with the best three-inch Southern pine; the frame
to be of oak, cedar, locust and securely fasten-
ed; combing around newell one foot in height
and four inches in thickness securely fastened to
the deck. q g pa ~ 1istiff9
The price of the dredge, of the tug, and of each
scow must be separately stated. a
No payment will be made on account of dredge,
tug or scows, until they shall have been delivered
inspected and tested, as above prescribed and re.
ceived, when the contractor will be paid in full.
Parties offering to contract for this dredge and
lts equipment will state distinctly on what princi-
pie they propose to construct the machine; if pa
tented, the name OF the patentee; whether SINH
lar machine has been built and subjected to trial;
and, if 80, where and under what circumstances;
giving the character of the dredged matter and the
depth of water from which it was raised, naming
the person or persons to whom reference can be
had in regard to the same. The dimensions of the
hull Of the dredge should be given, with details of
construction also the power of the engine for driv
ing the machinery of the dredge, expressed in
nhor of hnp1 ole
Under and length of stroke of the piston and the
pressure of steam under which the engine is ofdi.
nariy worked. If practicable, drawings should be
forwarded of the dredge complete, and also Of the
dumping scows.
Further particulars may be obtained by CORE.
spending with Lieut.. F. Gilmer Corps of Engi.
neers, Savannah, Georgia. 81 s55gi 1aE 81
The dredging proposed to be done in the Savan-
nah river is principally at two points, known as
the sWrecks'' and ssGarden Bank;n the former
about fifteen miles above. the entrance and the
latter short distance further up the river. The
amount to be dredged from the bars mentioned is
about lit 900 cubic yards the material rs sand
with small amount Of soft mud mixed; and the
depth varies from seven to eighteen feet at low
water. The dredged matter is to be removed to
points in the river distant from the barn two hun
dred to fifteen hundred yards. and then let into
the water again by opening valves at the bottom
OF the wells of the scows; or to be taken to new
wharves, near by, and the materials thrown on
shore, II proper arrangements can be made-vith
the proprietors Of the same to unload the scows for
the filing thus furnished. 34k
Sealed proposals will be received as above for
dredging, by the cubic yard. the whole amount to
be removed from the two bars; also for oaehalf Of
the amount; the contractor to furnish dredge boat
tug, and scows at his own expense; the dredging
in all cases, to be done in the manner and at such
points may be designated by the agent of the
Government; the materials to be deposited at such
points as he may indicate within the maximum
distance mentioned from the bars. The officer Of
engineers, or other agent of the Government in
charge of the improvement, will examine in detail
the operations as often as may be necessary to
secure the faithful fuiflment of the contract in
every particular. aasa ta il
Partial payments will be made, from time to
time, in the progress of the work. based upon esti-
mates OF the number of cubic yards removed, but
twenty per cent Of the value of the work done will
be In all retained in the hands efthe Govern
ment agent until the whole amount contracted for
is removed, when the sums retained will be paid
to the contractor. = - .a5a5sIat3 = /
Further particulars may be obtained by CORE.
spending with Lieutenant J. F. Gilmer, Corps of
e JOS. G. TOTEM,
BIT. Brig. Gen. and Col. Engineers.
To be inserted in the Republic, Inteligeucer,
and Onion, Washington; Savannah Republican,
Savannah, Georgia; Pennsylvania Enquirer, and
Daily News, Philadelphia; Courier and Enquirer,
and Express, New York; Wing, Troy, New York;
Boston Courier, Boston, daily for two weeks; one
copy of each paper containing the advertisement
to &c sent to the Engineer Department.
FOR FINISHING PORTLAND
HARBOR BREAKWATER, MAINE.
ENGINEER DEpARrMENr,
WAsHINGToN, February IS, 1853
Of ~.