The Portland daily press. [volume] (Portland, Me.) 1862-1921, 1870-08-17

ENGINEER OFFICE, u. s. ARMY. /
NEWPORT, II. L., August 18th, 1870.

M ENGINEER OFFICE, u. s. ARMY
.-l"ia' NEWPORT, II. L., August 11th, 1870. !
SEALED' PROPOS AIS will be received at this
- office, until Saturday, the 18th day OF September
1879, at II O'clock NJ tor the construction of the
su6stracfare OF Breaks ater at Block Island, r..
tor local purposes.
1t will begin at a point On shore near ..Sand,s
Landing" on the southeast nart OF the Island and
tie built out TO- and along line joining "Ca, Head'
about three hundred (SOO) feet beyond the low wa
ter line. 1he ereatesJ depth OF water on the line of
the Breakwaier is at its sea extremity, where there
is sixteen G) feet at mean low water. From thence
sh0reward, The bottom slopes up gradually to high
water mark the bottom being smooth sand under.
Laid with clay The mean rise and tall the tide is
three and one quarter 81 feet. = 5tfss
The substructure OF the breakwater will he stone
simply dropped into the water SO as to iorm slope
OF three 3 bae to one ~ perpendicular on the side
toward the sea, and one m base 10 one "a Del penaic
uar on the side toward The land, and to be thirty
1907 feet WIDE at mean low water level. The work
must I've begun at the shore end, and be finished no
shore.
The stone must be granite, of the best quality, SO
far as durability is concerned, and in pieces weigh
ing not less than one and one quarier II Ia tons
without regard TO shape exec. that there must be
no slabs or thin pieces.
1t isbeiieyed that this work be done by vessel
unloading their cargees the spot. In ordinary
weather vessels lie in the roadstead with perfect
safety, though there will be times in the earlier prog
Iess OF the work at least, when much time must be
lost The worst storms are from the southeast and
during storms from that quarter, the roadstead is
untenable for vessels Of any class .... .-
To complete the whole saJstructure about fty
thousand tons OF stone will be required but at
ent the funds appropriated WILL it is estimated pay
fnrnot more than ten thousand tons. Proposals
VIII be received only for the smaller amount and no
contract will be entered into work to be d rorm
ed after the Both day OF June, 1871. -l .la'0Tl-
Payments will be made monthly res eryinp fen nf,
per centum till the contract is fulfilled,
proposals must stale the ptce per ton at which
the stone Will be furnished and tut in the breakwa- :
ter, which price ust include all charges whatsoever
against the United States. ~
The stone must be deposited hy the contrac+or ~,
der The supervision of Engine er designated Inv The
undersigned Ior that duty. - - >AN
Proposals must state the earliest time at which
work will be begun after accep OF proposal =
Work once begun must be prose cuted Nith all prac.
.cabe diligence. 's ri f...'r Z. 'Ht+ -Hi'
Eacn proposal must be in duplicate, accompanied
bya Guaranty in duplicafe, with trinei copy OF
this adveri lsemeDt attached to each proposal BanlS
forms tor proposals and guarantees will be furnished
by this office application. and any other inioIma-
ton practicable TO give.
The Object at this advertisement being to give
every responsible and cdpdtte party an Opportunity
TO bid Tor the work. ana to secure the pub bc the
greatest amount of work with the lunds appropriate
ed The rlg a. is reserved to reject any and all bids
u these Objects are Lot thereby obtained.
Proposals must be addressed to the undersigned
ana endorsed on the envelope "ProposiIs for I'M AZ
ing Breakwater at Block Island II, IL
g. X. WARREN
Major OF Engineers; t'
,-,.. Bvt. Maj. Gen. u. S. A