The republic. [volume] (Washington [D.C.]) 1849-1853, 1852-12-16
PROPOSALS FOR 5svs4fs4E-noATs.
War DEPARTMEHT.
BUREAU CoRPs TOPOGRAPHIC ENoIsEERs.

| War DEPARTMENT.
| BUREAU CoRPs ToPosaAPHIcAL ENoIsEERs,
| . .. ..... December 8, 1862
| PROPOSALS will be received until and incud-
l. ing the ION day Of next February, for the
| construction Of four steam dredge boats, to DO
worked by high. pressure engines, viz:
One for Lake Champain, TO be delivered, in
spected, and received at White Hall Harbor. on
Lake Champaign. H.F ~ ..f..
One for Lake Ontario, TO be delivered, inspect.
ed, and received at Oswego, on Lake Ontario.
One fur Lake Erie, to be delivered, inspected.
and receive ed at Erie, on Lake Erie.
One for Lake Michigan. to BIO delivered, IN
spected, and received at Chicago, Illinois.
The hull of each boat TO be 10 feet long. so feet
beam, with guards feet wide, sufficient for buck
et-laddcr and paddle wheels, To draw when
equipped not exceeding feet Of water.
To have two cylindrical boilers, made of the hes
boiler iron, quarter Of an inch in thickness,
tvs nty-two feet long. and forty inchesin diameter
each. .,at @'1s 3" t.-.
The working cylinders of the engine to be
twelve inches diameter inside, not lers 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 ioeomo-
ton, with suitable accommodation for the officers
and hands required to man9uvre and work the
boat. say captain, mate, pilot, engineer, and
twelve bands; also suitably constructed coal
bnnkers for about fifty tons of coal.
No advance will be made contract, nor will
boat be received paid for until after it has
been inspected and tried, and found to meet the
terms of contract. 's..# "
Each boat will be supplied with a good four
cared yawl boat, 20 feet long, and with four good
oars, and also suitable yawl- boat and oars for
assisting in weighing anchor. @
The boat will be inspected in reference to ar
engagements, materials, and equipment, and will
be subject 10 the following trial.:
1st. As to locomotive power. it will have to
move not less than 100 miles in calm weather, on
the waters of each lake respectively, in cousecu-
tive hours, at rate of not less than six miles
the hour. ....t .... ,a .... .-
ID. As to dredging power. II will have to raise
md hor iptn of Ions n r q
yards the hour; OF loose mixture OF clay and
sand, part sand and parts clay, not less than
100 cubic yards the hour; of pure clay, 80 cubic
yards the hour; of tenacious clay, and of sand and
gravel, 60 cubic yards the hour, from a depth of
| not less than 10 nor exceeding IL feet. ."a
This must be the continued work of the boat
during 10 hours, and not ay ernge during any
shorter time of work. f@ts.N
Each boat will have to be supplied with an an
Choir of not less than 500 lbs, and too hedge an
cbors of 200 lbs each and with an adequate chain
cable of not less than 10 fathoms long, of iron
Also a a. Inch hemp cable 100 fathoms long.
The trials will be under pressure OF steam for
dredging not exceeding 60 pounds the square
inch; for locomotion not exceeding $50 pounds the
square inch.
The trials and inspection to be made by Uni
ted States agent. wv
The boats to be ready at the places stated by the
last day of May next.
Proposals will at the same time be received for
four dischargng 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
lees than 40 tons of excavated soil
Proposals to be addressed TO the undersigned
and marked the envelope proposals for
Dredge boat"
]. j. ALERT,
Col. Corps Top. Engineers.
The Republic, Intelligencer, and Union, Wash
ingtou; Courier and Enquirer, and Express, New
York; CONNIE rcai Advertiser, Buffalo, N. Y;
Advertiser, Detroit, Mich; Commercial Adver
tiser. Chicago, H.; Commercial Times, Oswego,
N. Y; Pittsburgh Gazette, Pittsburgh, Pa; Al
twenty daily insertions, then twice a week until
February 10.
Dec 9-d20t& 2awtFebl0 ......'