The republic. [volume] (Washington [D.C.]) 1849-1853, 1853-02-07
FOR DREDGE-BoATs.
W AR DEPARTMENT

WAR DEPARTMENT., ~
| BUREAU CoRPs ToPoenApHIcAL ENaINRERs, +.
/ 81 December 8, 1852.
! PROPOSALS will be received unssfand includ-
u ing the 10th day of next February, for the
construction of four steam. dredge- boats, to be
worked by high pressure engines, viz: 8saA3
| One for Lake Champlain, to be delivered, in
j spected, and received at White Hall Harbor, on
Lake Champlain. tA ,s@if
One for Lake Ontario to be delivered, inspect
ed, and received at Oswego, on Lake Ontario.
and received at Erie, on Lake Erie s8hfeai 4
One Tor Lake Michigan, to be delivered, in
spected. and received at Chicago, Illinois.
The hull Of each boat to bel10 feet long, 30 feet
| et-1adder and paddle wheels, to draw when
equipped not exceeding feet of water. t386f
Tohave two cylindrical boilers, made of the best
boiler iron, one quarter of inch in thickness,
feet long, and forty inches in diameter
each. 4 ,i-,,.zs ts
The working cylinders of the engine to be
twelve inches diameter inside, not less than half
an inch thickness of metal, and to have length
OF stroke OF four feet with half stroke cut. Off
| Each boat to have paddle wheels for locomo-
ton, with suitable accommodation for the officers
and hands required to maneuvre and work the
boat, say captain, mate, pilot, engineer, and
twelve hands; also suitably constructed coal.
bunkers for about fifty tons of coal S.
No advance will be made on a contract, nor will
boat be received paid for until after it has
been inspected and tried, and found to meet the
terms of contract
Each boat will be supplied with good four
Dared yawl-boat, 90 feet long, and with four good
oars, and also a suitable yawl boat and oars for
| assisting in weighing anchor. s
The boat will be inspected in reference to ar
! engagements, materials, and equipment, and will
be subject to the following trial: 81
LIST. AS to locomotive power. 1t will have to
move not less than 100 miles in calm weather, on
the waters of each lake respectively, in conscious
tive hours, at a rate of not less than six mle-
the hour.
I'd. AS to dredging power. It will have to raise
and discharge into scows, of loose sand, 100 cubic
yards the hour; of loose mixture of clay and
sand, part sand and parts clay, not less than
lOQ cubic yards the hour; of pure clay, 80 cubic
yards the hour; oftenacious clay, and of sand and
gravel, 60 cubic yards the hour, from depth Of
not less than 10 nor exceeding IL feet. a s. 5ss
This must be the continued work of the boat
during 10 hours, and not an average during any
shorter time of work. >a.2 tls5ai@ 3IR1
Each boat will have to be supplied with an al :
ehors Of 200 lbs each and with an adequate Chair,
|cable of not less than 10 fathoms long of iron.
Also finch hemp cable 100 fathoms long.
no o. TOR
inch; for locomotion not exceeding $50 pounds the
square inch. - TIC
L THE trials and inspection to be made by Uni
ted States agent.
The boats to be ready at the places stated by the
last day of May next G.ss5f a44y ~ t5ita5'sr "a
Proposals will at the same time be received for
four dlscharging scows for each dredge boat, each
scow to be provided with two good sweeps, and
with bottoms arranged as to discharge the whole
load at once. Each boat capable Of holding not
less than 40 tons of excavated soil. {a5r gftl
T. Proposals to be addressed to the undersigned,
and marked on the envelope proposals for
Dredge- boat l4.i.z EHzta Il 39es hg+
= 4s j. ]. ALBERT,
COL Corps Top. Engineers.
The Republic, Intelligencer, and Union, Wash .
ipgton; Courier and Enquirer, and Express, New
York. Gonnnercial Advertiser Riff
Advertiser, Detroit, Mich; Commercial Adver-
tiser, Chicago, ILL.,; Commercial. Times, Oswego,
Ny; Pittsburgh Gazette, Pittsburgh, Pa; Al
bany Register, Albany, N. Y, will give the above
twenty daily insertions, then twice a week until
February TO-
Dec 9-d20teh1O&2 aWtF