The Portland daily press. [volume] (Portland, Me.) 1862-1921, 1870-08-16
Breakwa,er nj Block Island. IL. 1
ENGINEER OFFICE, U. S. ARMY.
NEWPORT, r. l., August 11th, 1870.

ENGINEER OFFICE, U. S. Army.
NEWPORT, r. l., August 11th, 1870.
CEALED PROPOSALS will be received at this
y office until Saturday, the 18th day OF September,
1870, at II o'clock NJ, for the construction Of the
substracture OF Breakm ater at Block Island, r. I,
for local purposes.
It will begin at a point shore near Sands
Landing" on the southeast part of the Island, and
he built out to- and along line joining "Cias Head"
about three hundred (300) feet beyond tine low wa
ter line. The greatest depth OF water on the line of
is sixteen (6) feet mean low water. From thence
shoreward, the bottom slopes up gradually to high
water mark the bottom being smooth sand under
laid with clay. The mean rise andSfalof the tide Is
three and one quarter ~ feet.
The substructure OF the breakwater will be stone
simply dropped into the water so as to torm slope
toward the sea, and one base to one ~ perpenoc-
uar OH the side toward the land, and to be thirty
must he begun at the shore end, and be finished up
to mean low water level as it progresses from the
shore.
The stone must be granite of the best quality, SO
tar as durability is concerned, and in pieces weigh
ing not less than one and one quar- er Il 1-4) tons
no slabs or thin pieces.
1t is believed that this work can be done by vessels
unloading their cargees on the spot. In ordinary
weatnsr vessels can e In the roadstead with perfect
satsty 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
dnring storms from that quarter, the roadstead is
untenable for yessels Of any class.
To complete the whole su6styucture about ftv
thousand tons ofstone will be required, hut at pres
ent the funds appropriated will. it is estimated pay
fHr not more than ten thousand tons. Proposals
will be received only for the smaller amount and no
contract will be entered into for work to be srform-
ed after the 30th day OF June, 1871.
Payments will be made monthly res eryipp ten nc,
per centum till the contract is fulfilled
Proposals must state the price per ton at which
the stone will be furnished and rut in the breakwa
ter which price must include all char ees whatsoeyer
against the United States.
The stone must be deposited by the contractor nm
der The supervision OF an Engineer designated by the
undersigned Tor that duty.
Proposals must state the earliest time at which
work will be begun after acceptance OF proposal
Work once begun must be prose cued with all prac-
ticabe diligence.
Each proposal must be in duplicate, ACCOMPANIED
by Guaranty in duplicate, with pr inted COPY OF
this advertisement attached TO each proposal Blank
forms for proposals and guarantees will be furnished
by this office on application. and any other noima-
tion practicable to give
The object of this advertisement being to give
every responsble and edpGtEe party an opportunity
to bid for the work, and to to the public the
greatest amount of work with the lunds appropriate
ed the right is reserved to reject any and all bids
II these objects are Lot thereby obtained.
Proposals must be addressed to the undersigned
and endorsed on the envelope, Proposals Tor build,
ing breakwater at Block Island. r. II
G. X. WARREN,
Major of Engineers;
aug15dGt ' Ne"' " o. "A