The national Republican., 1867-11-13
pIOPO1AIS. u
ITO MIRA TORS
U. s. ENaINEkR OrEIcE,


the work for improvicg the harb5r Of Buffalo, New
York, until noo1 Of the 2sth Of November, 1857.
For easy reference aud understanding, the I'm
provemouts sto put undsrthe following divisions:
DIVISION I.
RErAtRs ASD PRESERVATION or SLOPE oP OLD sroNE
REvBrNENr ASoUSD BEAD OF souT1 FEB, RE-
So round piles, a to 60 feet long, l2 inelo1 damo
ter exclusive ofbrk, at middle, Of best quality Of
20 water ellis, exl2, in lengths from 10 up u IS
feet-iu all Gil running feet.
Is binders AVS, In lengths 10 TO 81 fest-ln al $40
st4 side, epd md tie tImbsrs, l2xl9, in 'eushs Of
9 up to 30 feet, AS7 runnlaE feet,
9S5 Joi.ts, . !Si2, in lengths from to Il fo''-
SO PLANK, 2zIG, in lcsgths from Is to IS feet
Is 692 feet b. m.
% feet and usder will amount to 5a5si feet b. M.
Above 20 to 81 feet! iue usivs, will ancua 10 1855
Above "a . IS 'oe:, inclusive, will rouut to s',O5o
And oSiy oae IS feet lex, the ot' ors rot exc'sd.
ing 30 feet.
lac bars, l i5sh sqa,ro, dr'f bolt iron, Is fOt
lis nuts snd screws, 2 washer bolts ons Inch
round, from 20 inches long from inside OF head 70
iueh wrought spikes, q. 10 diamettr-l, ,Os4lt
2l9 cords Of Tubble stone, to nll to ht9m Of top
100 cords Of bra h Il b,ugd buudlcs o. l2 ipeho.
In diameter aad 10 l2 feet 10 length, to b. pu: un.
In this old south pier here arc several places In
which breaches through tie out'r wall or crust Of
the mA.o fry have been made, IN all amounting TO
masonry. These to be paired BY misoTry similar
to the old work
I; viii al require 3!6 cords o. ruSbls stone to
Gil in behind the suPcrstrueturs, 20 as to bring the
reyetment Of the slope to top Of supsrstrueture
DIVISION II.
KFrArR AND PARsERvArIoS-oLD NORTH rIER, RE-
oUiR'NG
a5 cords Of stones, which have fallen ont Of the
outer extremity Of the old work, to be raised rom
Il - l.tV Hall Ia Vat,Nk
pe-, CT on beth. Among thsse stones there will
probably be about e} cable yards Of sand also to be
| raised aud dumped where It will do no harm; and
the stonss all this dredging to depth Of IA feet Of
water to allow Of putting in new head to this pier,
consisting OF crib % feet losg 10 feet wide to be
sunk along eide OF old pier IN IA feet Of water ard
another CRIB IS feet long II feet wide, to sand In
feet Of water and to bS fastened upon the old crib
work, and suPSrstrueture Of wood and atone TO be
put on these new eTlbs) Is feet long "a wide and
feet high; the cribs and superstrueture to be allied
with stone aud the work planked over
The new head will require for the construction Of
the cribs under water:
round piles not less than IL inches diameter at
"a SIDE, end, and lie tmSers i2xi2 Of Sst6s from
10 to % fs. tin these iS2I T..
bottom tlmbers, sKlO, 10 feet lopg-S0r.i
I scantling, SKA, 10 feet long-5I feet b. IN
10 boards, lxl2 II feet long-l76 feet m.
And for the superstrueturs above water:
80 side, end and tie tmbers l2xl2 In lengths Of "a
and % fset-!n these 73j ri
u joists, 2xl2, ll24 feet loug-20l feet IN.
% PlGnks, 2xl2, "a feet long-l loI feet b. IN.
10 bars inch square dTin holt iron, lG feet long
for cribs Rad supsrstructure-2,l20 lbs.
6.!neh wrought tplkes, 6.l6 irches diameter
lbs.
5.lnch vrougb. spikes, 5.l6 iuches dlsmster-3G
lbs.
10 d. cat nalls-2, Slbs.
a. cords of st2ue to I'LL up to bottom Of toI ,l'r
will require about Al cable yards OF old stones, II
those to be drsdged up and to be replaced copnK,
in workmanship as formerly, aud as now 10 bs
on the unimpatTed part Of this pier,
In this division the timber in gths Of 90 feet and
under will amount to 69l7 feet b.
Above 20 to % feet inclusive, to $40 feet b. IN
Above "a to IS feet inclusive. to l6 500 feet b. IN.
DIVISION III
EXTENSION CT sOrrH PIER, COMMONLY CALLED "LIGHr
HOUSE PIER. "
This extension to be done by shaking eight cribs
end to end none In less than II feet Of water below
the low stage, and posing six Of them on lsyel bed,
produced BY Dredging sand to the amount Of els
cubic yards, each crib Ia the series to have four
stay plies driven, one in each interior corner, and to
be hlltd with stones. CRIB No. TO be on one eide
% and on the other 80 feet long, making one end
oblique to the sides, and 70 feet wide. Cribs Nos
Cribs Nos and to bo 80 feet loug and c6 feet wide
10 stand nstuvsl hd In stss from II to lhlI feet
bers to be so shaped as to 1T the bed by making
end deeper than the other that the upper side
| Of said timbers shall be horEjntal.
over the crbI Rnd extending back quite even with
the centre Of ths house, there Is to be super
structure Of timber rising six feet above water filled
with stones to bottom Of Top timber. and then to be
extends back from the crib No ], t) rest upon the
old close row Of piles row standing. and the other
side to rest upon the old stone Tsvetmsnt The total
length Of tbs supsrsrueture Is SIS feet Toe portion
resting The ctlps 70 24i feet In Length The eight
| cribs require flr construction:
| 672 side, end, aHd tie tmbeTs l2x'2 2, Ia lsEgtLs
from q to So fett-n these II, ,2i5 running feet.
2levelltng tmbers, l0xl2 30 fec; lorg to be heWed
| to 1T slantng b9itom-5O ruuairg feet.
los crib bottom pieces, sxlO, Ia lengths from Is to
% feet. o27 IunEiag feet
| l2braeos, SKIS, fotI loag-lOS
EtiT wi fFRFn 10 faa In Uth
llHr.t
o7l crib bottom board, lxl2 Of lengths II and Il
feet, 7oi feet, b, m.
20 clamps, 2ki2, "A feet Ious-6Ii feet b, m
81 seantiDg, SKA, in leRstas l2 g. and 81 fee.-Gs
The whole super,tructurs requires for lis con.
sos side cad and tie timbsrs l2Elc Of this from
| to 81 fcet-in these 6,3g7 T.
| 6bTaces, SKIS, 0 feet ng-jir.f
| 3li Joists and planks, 2xl2, In lengths TO- % "a
| and 25 fsct-n these IA, ,3lB feet b. IN.
| ia jOists, 3Gl2, 10 feet long, go feet b. IN.
2S white oak round piles for staying cribs not les
than IL inehes diameter at middle, excluding bark
| which 20 to be 81, and eight IS feet long
33OlE bars liach square drift bolt iron, 'oo long
for cribs and supsrstrueturs-l7 5lblbs
| II rOund.in iron nut and screw, aud TIVE
washers bolts ~ inches long from inside Of head tC
point OF seTsw-l7O lbs.
| 6.ineh wrought spikes, 9 ID diamstsr-lGl lbs.
5-ineh wrought spikes. 3.l6 diamoter-s26 lbs.
| 10 cut nAils-2I lbs.
go ccrds Of rubbls stone for cribs and supsTstrue
ture.
In this dlvislsn the pieces Of timber in lengths 0
90 feet and under amount " So, III b. m.
| Above % to include "a feet, 10, 0s4 feet b III.
| Aboye q to include 80 feet, 1871, SO7 feet b. m.
DIVISION ".
| UREDUIgg FOR CHANNEL
After tho work Ia Divisions /, II, III shall hay
been doae, 1t may become necessary TO dredge th
space between the ext GsiOn Of the south and th'
prolOng alton Of the line of north pier TO obtain
depth Of channel OF Il 10 10 feet below tho low sta
This will be estimated In cubic yards, and the PrIe
| for dredging aud dumping the same out Of the wal
in deep water to be bid for. Our surveys now show
about IL 900 cubic yards Of this deposit requiring
moyal.
DIvIsIoNV
BREAHwATER To INPaOvE IHE ExIsTNG HARBoR All
TO AFFORD REFCug
This Il G ed 10 be 1 600 feet long, to staal 10
straight luo ua which the average depth Of wate
bel low stale 10 27 feet to consist Of cribs 90 fee
iong placed end to end, made Of square tlmbsTs. Tn
stes ~ the cribs to rise from the bottom with bat
ter Of NlC0Es, the cribs snail be is feet at tn
low water surface and thence the faces Of the super
structure to rss vertically fsot above said surface
Tho widths Of the cribs at the bottom will be iron
81 to SO fsOt to the depths which they ar
. to stand, the whole work 10 bo filled with rubbl
stones up TO bottom Of top aud panked over
The cribs, eighty In number, will require for thei
; | constructions:
II, 6lO side cross aud braca tmberF, l2zl2, @
lengths from IL to 81 feet amounting to 49, 9l3
4272 end tinbors, llGxl2 lengths ls9I to 80 feet
amounting 10 llB,73j ri
100 bottom cross ties, lOXl2 leoghs 81 O $50
feet, amuuCtlng to jil6 re-
100 bottom cross teg, lOxl2, l0BgIhs 81 to Ij3
| feet, 10 o ilJ 7 7,