Evening star. [volume] (Washington, D.C.) 1854-1972, 1867-11-21
PROPOSALS.
RIO CONTRACTORS.
o. 8. ENGINEER OFFICE,
LII GRrsxnIn Srn nErRnIr. Mich.

To CONTRACTORS.
| o. s. ExsINEER 0rrIcE,
| III GRiswoLp sTREET, DETRoIr, MicHf
SEALED PROPOSALS, in duplicate, written
ceiyed By the unde signed for furnishing the mate
rials and doing the work for improving the har.
Fer easy reference and understanding. the i'm
proSenaents are put under the following divisions
| DIVISION l.
| REPAIRS AND PRESERVATION OF SLOPE OF OLD
STONE REvETMENT AROUND HEAD OF SOUTH PIER,
Sc round piles a to % feet fong u inches di anne
ter exclusive Of bark, at middle Of best quality Of
@ water sill,, 6xla, in lengths from 10 up to IS
| feet-in all eii running feet.
- binders, 4xs in lengths Is to 80 feet-in oil sos
3x4 slde end and tie timbers, i2xl2 in lengths of
| 6np 10 80 feet-7,4a running feet
81 S 6s loists s5s1n, in lengths from to Is feet
sss planks, 2xI2, in lengths from IS to Is feet
% In s this division the pieces Of timber in lengths of
eAep 9ve ITO "A feet, inclusive, will amount TO
Above a to % feet, inclusive, will amount to
And only IS feet stick, the others not exceed
ia, las bars inch square, drift bolt iron, 10 feet
ll6 nuts and screws, 2 washer bolts, one inch
ro4na from 20 inches long from inside Of head to
9 inch wrought spikes, BIB diameter-l Os4 lbs.
2s cords OF ru6be stone, TO NIL to bottom Of top
100 oords of brush in bound bundles of Il inc!Ges
ID az meter and to II feet ia length, to be put
In Iris old south pier there are several places in
which breaches through the outer wall crust Of
| some 3,tS cubic yards of rubble dry and cement
masonry; These to be repaired by m asonry similar
1t will also require SIS cords of rubble stone to fiji
IN behind the experimenting so as to bring the
vetment OF the slope 10 top of superstructurs.
| DIVISION III.
REPAIR pREgFRvATInN-Orn TN
% cords of stone. k wieb Nave s.u,n
outer extremity Of the old work to be raised from
under water by dredging, and Piled on north
win probably BE- about las cubic yards Of sand, also
TO be raised and dumped where 1t will do no harm
fedsns the stones ali this Sredsns saSDs 0F
IA feet of water, to allow of putting In new head
wide be sunk along side Of old pier in Il feet te Of
water, and another crib Is feet long, feet wide,
upon the old crib work and ssuperstructure of wood
Ana stone TO De put on these new cribsl Is feet
perstrueture to be filled with stone and the work
The new head will require for the construction
TSUns piles mot less than T. inche diameter at
f SIDE +, END and tie tim6eGs l2xl2, of lengths
S bottom timbers, sxio, 10 feet long-so RI.
4seantling, Sxi, l6 feet long-64 feet b. m.
10 boards, lxl2, ii feet long-l76 feet b. m.
And for the superstructuTe above water:
30 side end and tie timbers, l2xl2, in lengths of
"A - Ieet-lD t0ese f5o r. I.
~ joists, 2xl2, llA feet long-2oi feet b. m
~ pIanks 2xl2, "a feet long-l ,loi feet b. m.
for cribs anc superstructurt-2I90 lbs "s'
>, Inch wrought spikes, 5-I6 inches diameter-2
,,5-inch wrought spikes, sic inches diameter--s6
46 cords of stone to fill up to bottom of top tim
will require about A cubic yards ofoid stones from
those 10 be dredged up and to be replaced, az
In this division the timber in lengths Of 20 feet
and under, will amount to 8, 9H feet b. m.
Above 20 to "a feet, inclusive, to 1920 feet b. M
Above "a to Is feet, inclusive, to 1850 feet b. m
DIVISION III.
E&1ENsloN OF SOUTH PIER COMMONLY CALLED
This extension to be done by sinking eight cribs
the low stage, and posing six of them on a level
bed, produced by dredging sand TO the amount of
6l6 cubic ards each crib in the series to have onr
stay piles driven, one in each interior corner ana
to be filled with stones. Crib No. to he on one
end obique to the sides and "a feet wide. cribs Sbs
Nos 5, g. TO be 30 feet long, and "a feet wide
wide, to stand on natural bed in water from IA to
l3a feet deep, below said stage, and their bottom
making one end deeper than the other, SO that the
upper side of said timbers shall be horizontal '"'
over the cribs and extending back unite evan
with the centre of the CHIT house, there is t, be
superstrncture Of timber, rising six feet above
and then to be pisnked over. One side, Of the
supereuuOIure as III extends back from he crib
No l. rest upon the old close row of piles G 1n,
standing, and the other side to rest the old
cribs "a feet in length fRe eight cribs r 9n tire
t72 side, end, and tie timbers, l2xi2 in length.
from p 70 80 feet-in these 10 ,246 running feet.
hewed to fit slanting bottOm-6O running feet
e5 crib bottom pieces, sxlo, in lengths from Is to
y braces, SKIS, feet iong-2O8r
stick SS2, from is to p feet in length,
III Tr'ff Sins and some Tor levellins up the work
4binders, AXIS, in lengths from 10 to 30 feet-7s
"a crib bottom boards, kip, of lengths II and Is
2sclamps aIi2, u feet ions-s4l feet b. m.
81 scanthng, Sxi, In lengths II, p, and "a feet
The whole superstructure requires for its con-
sos SIDE end and tie timsssrs, l2xla, of lengths
sbrsces sxs, 3 feet iongDsirf'
,S 81 Gs 4 aDd hssns 2fs in lengths TO-
Ia joists, Sxl2, 10 feet IOng-5,2a 30 feet b. m.
less than p inches at middle. eneIudn Nt
bark, Of which ~ to be "a and eight p feet long
long for cribs and superstructure~H SIG lbs '0''
IL round inch iron nut and screw, and two wash
ers, bolts 2 inches long from inside of head to
6 inch wrought spikes, s-ls diameter-lsl lbs.
5ci9ch wrought spikes, 3-l6 dianeter-S26 lbs.
669 cords of rubble stone, for cribs and super
In this division the pieces of timber in lengths of
20 feet and under. amount to IS III m.
Above 20 to include "a feet, ITO, 9S4 feet b. m.
Above "A to include 80 feet l3l 907 feet b. II.
DIVISION Nv.
DREDGING FOR CHANNEL.
After the work in Divisions /, III, III shall have
been done, il may become necessary to dredge the
space between the extension of the south and the
proiongation of the line of north pier to obtain
depth of channel of IA to Is feet below the low stage
This viii be estimated in cubic yards, and the
the way in deep water TO he bid for. Our surveys
now show about l2,0Oo cubic yards of this deposit
requiring removal.
DIVISION v.
BREAKwATER TO IMPROVE THE EXISTING HARBoR
AND TO AFFORD REFUGE.
This Is designed to be 60 feet long, to stand in
straight line which the average depth of water
below low stage is feet to consist of cribs 50 feet
long placed end TO end, made of square timbers
The sides of the cribs to rise from the bottom with
batter OF 81 lO0ths, the cribs shall be Is feet
wide at the low water surface, and thence the faces
of the superstr to rise vertically feet above
said surface: The widths Of the cribs at bottom
will be from 3la to 30 feet according TO the depths
which they are TO stand, the whole work to be filed
with rubble stones up to bottom of top tmbers and
planked over.
The cribs, eighty in number will require for their
construction: s-