Evening journal., 1898-01-07
HIS FAVORABLE OPINION
CONTINUED From First Page.l

It is proposed that depth OF thirty |
one feet be secured. The price for eX-
cavating and removing the rock at
Schooner Ledge and near Petty's Island |
is estimated at 50 a cubic yard I'M place
The price for dredging. determined for
each section of the river separately, the
distance from the place of deposit, etc,
being considered is estimated at from
10 cents a cubic yard In the lower part
of the river to 20 cents in the upper
part, scow measurement.
"A large part of the report consists Of
descriptions of the conditions existing
in each of the separate sections of the
/ river. These indicate that the mate
rial to be removed is mud, sand, gravel
or rock. A synopsis of the description
of each section is given, with their
| boundaries. length, estimated cost Of
dredging per cubic yard, scow measure
ment, estimated quantity to be re-
moved and the estimated total cost of
the work in each section. The prices
| indicate that the farther the section
from the dumping ground in the bay
the larger the estimate of cost.
| Section 1. From deep water, at head
of bay, opposite a point a little below
Bombay Hook, to ElsinbOro, about ~
miles above Reedy Island, includes
Dan Baker fats; length, IA miles; dur
ing past year improved-by dredging
about 100000 cubic yards; present
depth 26 feet, dredging estimated at
10 cents per cubic yard estimated guam
| tity to be removed, S,207 900 cubic
yards; total cost, $4,000.
Section 2. From ElsinborO Point
to Fort Delaware length 1856 miles;
Improvement to a depth of 26 feet, pro-
vided for by an existing contract;
quantity, 100000 cubic yards. at 12ss
cents total 1876, $50
Section g. From Fort Delaware 10
Deep Water Point, n. j., length S.61
miles; includes locality known as
Bulkhead Bar, where is now a depth
of 26 feet; quantity, 3,992,000 cubic
yards. at 1415 cents; total. S5zS,S4O.
Section 4. From Deep Water Point,
n. j., to Old Mans Point, N. j., length,
$50 miles; includes Cherry Island flats;
quantity, 6,6S9000 cubic yards at 1914
cents; total, $1,O36,795.
Section 8. Old Mans Point, N. j.,
TO Marcus Hook, Pa, length, 4.49 miles
quantity, 41760O0 cubic yards, at II
cents; total, S709,920.
Section 6. From Marcus Hook, Pa,
to head Of Chester Island, opposite
| AnNcNtAf lnAluANo oNHUNuAl A4Nahif
, length. 4.47 miles. City of Philadel-
phia now improving the channel to a
depth of twenty-six feet. Price of rock
and dredging at 10 cents q cubic yard.
and dredging at 10 cents a cubic yard.
Cost of rock removal estimated at
S535 600 and dredging S5S5,340.
Section z. From head Of Chester
Island to head of Tinicum Island,
= length. 4.6O miles; quantity, 14S00O0
cubic yards, at 20 cents; total. 1896
t OOO
Section s. From the head of Tini-
d cum Island to Eagles Point, n. j., OPP
posite the head of League Island; in
cludes Mifiin bar; length 5.2g miles.
City of Philadelphia improving to a
, depth of twenty-siX feet After the
I work done by the city is completed II
3 will be necessary to dredge 1,336,O0C
d cubic yards to form the thirty-foOi
9 channel. Price of dredging estimated
Il at 20 cents per cubic yard, total cost
o S273, 200.
n Section 8. From Eagle Point, n. J..
Z TO Christian street, Philadelphia, where
o the thirty-foot channel of the harboi
+ is met, length $40 miles; quantity
+ 100000 cubic yards, at 20 cents; total
J. $73.SO0.
s The removal of rock a Petty Island
to a depth of 20 feet at low water, viii
require the excavation of about 12 ,t0C
cubic yards of material, place measure
: ment which, at SO a cubic yard, vii
d cost SlOS,90
/ Major Raymond says that his esti
{. mate of 32,375,00 cubic yards is ap
It proximate, as the bed of the river Il
p constantly changing, shoaling in sons
le places and deepening in others III
s, does not believe the quantity of ma
q terial to be removed will exceed the es
e innate, and it may be reduced by seoul
s during the progress Of the improve
'e ment He says further that under th'
most favorable circumstances the exc
cution of the project will require abou
six years. To conduct the work sue
cessfully and economically, 1t Shouts
be done under a continuous contract
and the estimate of cost is based ol
N the assumption that the improvement
De Is to be executed by this method
ln Six pages of the report are devote
g, to a discussion of the subject of tn
ln Maintenance of the Channel" Tn
d. conditions and complications are de
III scrbed, and the statement is made tina
an the attempts to determine the theoreti
IN cal form and dimensions Of an i'm
g proved channel have been found to b
m of little practical value.
ID The report then discusses the mate
rial deposited in the channel Of tn
river in the form of sediment, and IN
causes of it. The effect of the ebb an
ch flood currents, in moving material int
n the channel, is also considered, as we
ire as other conditions favoring shOalin
in different parts of the river
During the flood tide, Major Ray
VI mond says, the water from the ba
flows up stream for distance Of abOl
* fifteen miles to about Pea Patch ISLAM
.c- Above Pea Patch Island there is pract
il cally no inflow of water during fioo
tide, the tide wave being merely
transmission of energy in which part
an cles of water are moved for a short dl
tance only. Regarding sections an
2, this conclusion is reached;
. THE shoals extending througho'
III the lower sections Of the river const
nd tute the bar at its mouth. and wheth'
a channel thirty feet deep at mes