The evening telegraph. [volume] (Philadelphia [Pa.]) 1864-1918, 1870-08-26

pRBAKwATER AT BLOCK ISL AND, R
ENGINEER OFFICE, UNITED STATES ARMy,(
NEWPORT r. l.. August IL. 1870. (

EFGnsKER OFFICE, UNITED STATES ARMy,(
- NEWPORT, r. l., August IL, 1870, 4
seaed proposals WIN be received at this once untl
SATURDAY, the nth day Of September, 1870, at II
O'Clock NJ for the construction Of the substructure
of breakwater at Block Island r. l., for local pur
poses.
1t viii begin at point on shore near "Sand's
Landing" on the southeast part OF the island, and
be built out TO and along line joining "Ciay Head
and "Ffve Foot Rock" Its total length will be
about three hundred (30O feet beyond the low water
line The greatest depth of water the line OF the
breakwater is at It's sea extremity, where there is
sixteen u6) feet at 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 and fall Of the tide is
three and one-quarter (3hO feet.
The substructure of the breakwater viii be stone
simply dropped into the water so as to form slope
OF three ts base to one p) perpendicular the side
towards the and one Q) base to Q) perpepdi-
cular the side towards the land and to be thirty
(30) feet wide at mean low water level. The work
must be 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 80
far as durability is concerned and In pieces weigh
ing not less than one and one-quarter ~ ton.
without regard to shape, except that there must be
no slabs or thin pieces.
1t is believed that this work can be done by YES
sells unloading their cargoes on the spot In ordi-
nary weather vessels can lie in the roadstead with
perfect safety, though there will be times in the
| earlier progress Of the work OF 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 structure about fifty thou
sand tons Of stone will be required but at present the
funds appropriated will, it is estimated, pay for no
more than ten thousand tons Proposals will be
received only for the smaller amount, and no co n
tract will be entered into for work to be performed
after the 30th day of June, 1871.
Payments will be made monthly, reserving ten d0
per ceutum till the contract is fulfilled.
Proposals must state price per ton at which the
stone will be furnished and put in the breakwater,
| which price must include all charges whatsoever
| against the United States.
The stone must be deposited by the contractor,
under the supervision Of engineer designated by
the undersigned for that duty.
Proposal earliest time at which
| work will be begun after acceptance of proposal.
| Work once begun must be prosecuted with all prac-
tical diligence.
zach proposal must be In duplicate, accompanied
by guarantee in duplicate, with printed copy of
this advertisement attached to each proposal Blank
forms for proposals and guarantees will be furnished
by this ofice on application, and any other norma-
ton practicable to give.
The object of this advertisement being to give
every responsible and capable party an opportunity
to bid for the work. and to secure to the public the
| greatest amount of work with the funds appropri-
ated the right reserved to reject any and all bids
if these objects are not thereby obtained.
Proposals must be addressed to the undersigned,
and endorsed on the envelope Proposals for build
| ing Breakwater at Block Island, r. l."
| q. X. WARREN,
Major of Engineers
| s1bbwt Brevet Major-Ge u. s. A.
NHlEF MEDICAL PURvEYoRs OFFICE,