The republic. [volume] (Washington [D.C.]) 1849-1853, 1853-02-25
FOR THE CONSTRUCTORS
OF BREAKWATER IN LAKE POINT.
CFIARTRAIN, OPPOSITE THE TERMI-
NUS OF PONTCHARTRAIN RAILROAD.
EsaINEER DEpARTMENr,


ENaINEER DEPARTMENT.,
WASHINGTON. February 10, 1853
7 is proposed to construct (at presently 1000
4 linear feet of the open pile breakwater in Lake
Pontchartrain,, opposite to the terminus of the
Pontchartrain Railroad, and at the distance there
from of 3,750 feet, and in ID feet water Said
breakwater to be constructed according to the
plans and drawings in the hands of Major G. T..
Beauregard, Corps of Engineers, New Orleans !;
Major William II. Chase, Corps of Engineers, Mo
bile; and Mr.. Fl. F. 1ngraham, Pensacola, at each
Of which places they can be seen and examined.
1t 10 to consist of four rows of cypress or pine
piles IL in. square, driven from 10 to Is feet into
the bottom of the lake, which is composed of mud
and sand; the piles in each row being 8 feet from
centre to centre; and the distance between the
three outer rows Chat is, crosswise) being 10 feet
from centre to centre; the inner being inclined
SO as to act like brace or butress to the others,
by abutting against the top of the one next to it,
where they are to be halved into each other and
firmly bolted together. The three outer piles in
cross section are to be connected together by an
Inclined cross piece IL in. IL in, strongly bolted
on to their heads and intended also to receive a
inch planking, which will be securely fastened
on by heavy spikes and trenais of locust; this
planking is to be open; the planks being about
foot apart and let into mortices about inches
deep.
This planking or platform rises on the inside of
the breakwater to about feet above the low water
level of the lake. and descends towards the outside
ing inclined surface ON which the wave will
eak
The two middle rooms will be connected together
longitudinally by string pieces, IL in. K - in,
securely bolted to them, and supporting the in
cliled cross piece just spoken of, which will itself
be braced to the two inner rows sd and 4th) by a
horizontal cross piece, IL in. IL in, bolted on to
them immediately below the low water level The
constr uction under water will be executed as fol-
lows: After driving down the outside pile certain
distance, the Inclined cross piece is attached to it
by screw bolt and it is then driven down to its
proper depth. its head being off level with the
cross piece; the other piles are then driven down
and the cross and longitudinal pieces bolted on to
them ALSO The fastenngs to the middle pile can
be easily effected, their depth below the low
water level will only be from Is to "a inches The
Jour lnch planks under water will be spiked and
trenalled to the inclined piece by means of a
tube and follower, the holes and mortices being
prepared before placing them in position
Quantity of materials for the construction of the
breakwater:
500 cypress or pine piles, 10 in 10 in, from
% to 33 feet long.
1000 running feet of cross and longitudinal
pieces, IL ink IL in.
q OOO running feet of planking, in. x IL in.
LIPS screw bolts, galvanized iron,) from lin
to in. diameter, and about % in long.
$500 spikes.
500 trenals>of locust.
1t lie supposed that the work can be carried on at
the rate of 200 days in the year without interruD
ton from the weather, after making a fair allow
ance for other casualties and Sundays. II will be
required to be completed in six months from the
date of the contract.
Proposals will be received at the Engineer De-
partment, Washington, until the Both day of
March, 1858, for the execution of this work under
one or the other OF the following propositions:
LIST 10 furnish and deliver at the site of the
breakwater, or about the Pontchartrain Railload
Depot, Gas the experimenting engineer shall di
rect1 all the piles the and Ion gtuinaI pieces
and the planking needed for its construction
Cd. To construct said breakwater at so much per
running foot OF Its length, the contractors furnish
ing every thing else but the piles, the cross and
longitudinal pieces, and the planking
Sd. To furnish al, the materials, &c. REQUIRED.
and to construct the whole breakwate at SO much
per running foot Of its Lengthy in other words, to
embrace the other two propositions in one.
The right of rejecting all the offers which mi y
I be made is reserved.
+ The Engineer Department is to exercise the ne
ceasary supervision, through its agents to secure
the due progress of the work and its faithful per-
fornance; and to reserve to itself the right of an
nuhng the contract at any time, should the hold
ers ofit fail to fulfil its conditions. ~
No advances of money will be made by the En-.
glneer'sN Department under any circumstances
whatever 3-lth
Payments proportionate to the amount Of work
done will be made monthly on the certificate of
the local agent that due diligence has been used
IN prosecuting the work; that interruption to
its daily progress has occurred save that incident
to Sundays bad weather, epdemical diseases or
unavoidable arrangement of machinery, not due
to radical defects in construction or quality of ma
teral The quantity paid for must have been taken
from section completely finished as required
Twenty per cent. will be reserved from all pay.
ments due. The accruing sums to be finally paid
to the contractors on the completion of the work,
or to be forfeited to the United States in case of
failure of the same.
All proposals must be accompanied by testimo-
mails of high character to the competency of the
proposer to execute the work offered for; the reli-
ability of the sureties must also be manifested.
The envelopes should bo5endorsed Proposals for
the construction of Breakwater in Lake Pont-
chartrain.''
For further particulars address Major G. It.
Beauregard, Corps of Engineers, New Orleans
JOS. G.. TOTEM,
BIT. Brig. Gen. and Col. Engineers
To be inserted in the Republic, Inteligencer,
and Union, Washington; Louisiana State Republi-
can, New Orleans Bulletin and New Orleans Bee
New Orleans. Louisiana; Mobile Advertiser, Mo-
bile, Alabama; Pensacola Gazette, Pensacola,
daily for two weeks; one copy of each paper con-
tanning the advertisement to be sent to the Engi-
neer Department. Feb 23-dSw