The Portland daily press. [volume] (Portland, Me.) 1862-1921, 1870-08-20
Rreakwaier nj Block Island. R. 1.
ENGINEER OFFICE, U. $. ARMY.

NEWfchI, As l., <auSuet I'LL, AosV'
CEALED PROPOSALS will be received at this
y Office until Saturday, the 18th day OF September,
1870, at IL O'Clock M for the construction Of the
substractare OF Breaks ater at Block Island, r.
tor local purposes
1t will begin at point On shore near "Sands
Landing" on the southeast part OF the Island, and
lie built out 10, and along line joining "Cla, Head
about three hundred (3O0) feet beyond the low wa
ter line The greatest depth OF water on the line OF
the Breakwaler is at its sea extremity, where there
is sixteen (16) teet mean low water From thence
shoreward, the bottom slopes up gradually to high
water mark the bottom being smooth sand under
laid with clay. 1he mean rise andtatoI the tide is
three and one quarter 81 feet.
The substructure OF the breakwater will be stone
simply dropped into the water 80 as to form slope
OF three ~ base to one ~ perpendicular on the side
toward the tea, and one base 10 one II peIpen0ic-
uar OH the side toward the land, and to be thirty
1907 feet wide at mean low water level. The work
must lie 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
iar as aurabhty Is concerned, and in pieces weigh
without regard to shape exceYt that there must be
no slabs or thin pieces.
1t is believed that this work be done by vesse
unloading their cargees on the spot. In ordinary
weather vessels lie In the roadstead with perfect
safety though there will be times in the earlier
ress of the work at least, when much time must be
lost. The worst storms are from the southeast, and
doring storms from that quarter, the roadstead il
untenable tor vessels of any class.
To complete the whole substrNcture about Fl fty
thousand tons of stone will be required hut at pres
en the FUNDS appropriated will it is estimated pay
Tor not more than ten thousand tons. Proposals
will be received only for the smaller amount and nc
contract will be entered into Tor work be ps rfOrm-
ed alter The 3oth day of June, 1871.
Payments will be made monthly, reserving ten (1C)
per centum till the contract is fulfilled.
Proposals must state the ice per ton at which
the stone will be furnished ut in the breakwa.
ter which price must include all charges whatsoever
against the United States.
Ths stone must be deposited by the contractor up-
der the supervision of an Engineer designated by the
uPdersignei ior that duty.
Proposals must state the earliest time at which
work will be begun after acceptance OF proposal
Work once begun must be prosecuted with all prac
:icable diligence.
Each proposal must be in duplicate accompanied
by Guaranty in duplicate, with prinled copy O.
this advertisement attached to each proposal. Bank
forms tor proposals and guarantees will be furnished
by this office on application. and any other inioma
tion practicable to give.
The object Of this advertisement being to give
every responsi6fe and capable party an opportunity
to bid for the work. and to the public the
greatest amount of work with the funds appropriat.
ed, the right is reserved to reject any and all bids
II these objects are Lot thereby obta ned.
Proposals must be addressed to the undersigned
ana endorsed on the envelope proposals ior build.
ing Breakwater at Block Island. r. IL
q. X. WARREN
Major OF Engineers;
,r,c Bvt. Maj. Gen. U. S.