Phenix gazette. [volume] (Alexandria [D.C.]) 1825-1833, 1828-08-26
fFr0m the National htelGgeneer.l
THECANAL.

For the qualification Of The Stockholders and
friends Of The Che saPeaSe and Ohio Canal, we
have been supplied with the following compare
tive results Of the various estimates OF the cost,
and the rccen, letting BY contract, OF the ninth
and tenth subdivisions, length oil about twenty
miles, Of that Canal next above the present locks
Of the old Potomac canal al tide water.
The thirty four sections let within the present
week. comprehend distance Of seventeen and
three quarter miles, leaving about quarter of a
mile, mex, below Seneca Greek, TO be let in Oc-
to5er next, ana emitting the enlargement OF the
present Canal, between the point OF intersection
OF the new line with the old, and the locks, or a
distance Of mile ll27 yards.
The excavation, entertainment, pudding, and
external dry wslling Of these thirty lour Sec
tons, have been lie, for 7,47S dollars, adding
for the work remaining 70 be contracted for on
this part of the Canal, and for widening and
deepening the old canal, sum equivalent to the
late estimated cost OF il by Messrs. GEDpEs md
RoBERTs: and for the excavation and some in
considerable embankment on the quarter Of a
mile next below Seneca, sum equivalent 10 its
cost, estimated by the standard Of the late con-
tracts; and the contract and estimated cost Of
the entire ninth and tenth subdivisions, will De
426,s27 dollars, inclusive Of locks, aqueGuc,s,
culyerts, bridges, and fencing. Allowing for
contingencies the usual sum allowed IN like
enterprises, ard which will here provide for the
expense of land rights, if any, tol-houses, sala-
ries OF officers, engineers, and agents, &c. and
the total cost OF these subdivisions, having a
descent to overcome OF one hundred and fifty
eight feet in nneieen miles and twelve hundred
and ifteen yards, VIII be S4ee,ooo.
The cost of the same subdivisions are in
the late estimate oi Messrs. Geddes and Ro-
And in that <the United States Board
Of Internal Improvement, exclusive OF any
allowance for land rights, toll-houses, &c at
The contracted and estimated cost is,
Geddes and Roberts, BY $4,000
And less than the prior estimate OF the
United States Engineers, by $4,000
Deduct for the 1--WE locks at tide water,
included in the estimate of the Board, $500
And the nett difference is, $4,000
Moreover, the Canal pu, under contract is to
be wider than that recommended by the United
States Board Of Internal improvement, by the
difference between forty eight and sky feet, at
the surface of the water, and thirty three and
forty FIVE feet at the bottom. l, will have a
depth, like their plan, Of FIVE feet of water,with
a towing pain OF ten feet breadth, instead Of
nine. Bur three miles OF the nineteen and near
three Quarters will be reduced, on account Of
difficult ground, 10 the breadth Of ffiy feet at
the surface and this reduction will be atoIed
for, 10 part, by an increase Of depth, calculated
TO produce an uniform cross>section through
CUT. It's locks may be OF the same dime nsions
with those recommended by The Z. States
Boas eof Internal improvement, and construct
el Ne same manner, except that 1t Is not |
so found them on reversed arches Of
Aey are estimated by Messrs. Geades