Richmond enquirer. [volume] (Richmond, Va.) 1815-1867, 1840-01-07

commencement TO the upper end of the twelfth level
the distance is l95 yards The excavation was of cay
and sand mixed with loose stone and gravel the chi.
ting beng from three to eight feet deep Upon II
part OF the level there is publ road bridge for
accommodation e the Gainesville road
The hrst lock on the second princpll section is lock
No IL in the general series from Richmond; and by a
Il III OF seven feet raises 10 te thirteenth level which
IS y miles and l32 yards in length The excavation
Tor Inc hrst X mile was Of common earth mixed with
gravel and loose stone.
& The remaining ofa mile alang \ steep rocky hill
side which required heavy cut,ar or rock and also
heavy cmbankment in the river, protected far ! of 4
by vertical wall q feet high ana Tor the remain
tngt mile BY rprap wall q feet IN height Upon
hs level are SIX cu!vc:S varying span from three to
| four feet and two farm bridges.
/ Lock No. - is constructed Of cut granite backed
/ with granite transported mile. Bv this lock we as
ccnd eight feet to the fourteenth level; the length Of
which is u miles and l6l yards Three and miles of
This level was common excavation Of red clay The
remaining |! mile are along steep hin side skirn-
the RIVER where the excavation prime pay of sand
stone In this part OF the level the cmbankment Of
the canal protected from The river for the distance of
! NH. by vertical wall - feet in height and for the
I remaining hall mc By r:praP wall ~ feet high. On
this level eight culvcrs Of spans varying from four
to eight feet, one aqueduci and four farm bridges
! Til" aqueduct built Bird creek upon this lcvc!
has an arch with span OF 30 feet and with rise of
: feet and has abutmcnts IL feet high founded upon
solid rock. The width between the parapcts and the
I 10 to.c OF: the Lcknghoc aqueduct beng formed At
right angles with the trunk for % feet and then are pa
ral!cl 10 it to it for 30 feet aud like manner re-
eved at their returning angle and at their exremitic
By pilascrs with ruStlcatcd joints The whole Cf the
masonry Of this aqucduc, like that L'ckinghoc is Of
the character OF rock work, except the coping water
table, pilasters, arch, ends OF abatments and INSIDE of
parapets, winch are Q; cut work. The rock used in
the Bird creek aueGGct Is granite and transported
from quarry four miles up the and nca., oppo.
positc To the town of Columbia.
BY lock No u the lnc aScrnds eight feet 10 the ft
;ecnM level, which Is miles 2-l yards IN length Tor
distance OF g! miles tins level the excavation was
OF common earth with slight mixture o gravel and
loose stone the borders OF the hills; the cutting in
the low grounds varying from two to eight feet, For
Of i mile there is heavy cm5ankmrnt crossing the
low ground between Columbia and the river which IS
protected for the space oil Us yards by Il vertical wall
- feet high and Tor S2 yards by rprap wall ~ feet
in height. Fox "A miles al the upper end of this level
there guard bank rising four feet above the height
of the usual canal banks Upon this level there were
also of mile of rock excavation The works of art
upon the level consists of thirteen cuvcrts, of which
of sixteen feet SPAN the rest varying from three
to ten feet; one aqucduc six farm bridges and two
public road bridges
The aqucdnct upon this level crosses the P!yanna
river little above the town of Columbia aud has lhrcr
arches with each span Of d. feet and OF H. feet;
and has also abutmcnls n,me feet high founded upon
rock The width between the parapes nj the level OF
the coping is II feet. The wings like those OF the
Lcklngholc and Bird creek aqucduc:5 are formed At
right angles with the trunk % feet; then parallel with
the trunk y feet. Til" whole extent of tie aqucduct
is go feet IN length, the parapcS and wings on both
sides OF the waterway being covered with well cut
coping from five to feet width. The masonry IS
Of the character denonnard rock work with the cx-
ccptca Of the waterway and arches, the plas:,rs At
The and ends Of the wings, the pastcrs also
above the piers aud the half scmi-concs and
upon the ends Of the a5utmemtS and peers.
Lock No. 10 is cut stone lock, beng granite pro-
cured from quarry within half mile Of the site. 1t
has lift Of feet, and conducts the SiIircnfh lcvc
which IS II mile and 10 yards III lrnTth the cutting
being principally through red clay mixed with 4 small
quantity of rock excavation. Upon this level there are
culverts varying in span from to feet and farm
bridges
Lock No. 10 is also a cut stone lock built of granite
transported "A miles.
Through this lock the line asccnds the screncenh
level, which is in length miles 800 yards For the
distance Of l-Uth miles upon this level the
ton was OF clay, sand and loan For the remaining
l-lC.h OF mile the cutting through granite rock
upon the rll sides The location Of the canal the
upper part of this line transferred to the river bank
opposite to the village of New Canton Upon this e
vel there are cuverts varying span from to feet,
also = farm bridges and puUlc road bridge.
By lock No. II, ascend l0t feet t. the eighteenth
level, which IS 81 miles and 20 yards lengta. Two
ami quarter niles tbs level consisted OF common
excavation of red and yellow clay, and the cutting
ranged from TO feet depth But IL: the ning
distance, amounting TO Il miles and l10 yards the
cavaton consisted more less OF rock blasted from
the cliff projecting int, the river at the Seven islands,
and from thorough cut 2oo feet IN length aud Il feet
IN depth in passing the Middleton ilia the upper
end OF the level For the greater part OF this distance
bank Of the canal is lycaIed in the bed of the river
and is protected Tor about Of mile BY slope wall
lct feet high, and fer 90 Of mile by heavy prap
wall about IA feet high On this part Of the canal,
t,cre is also guard bank rising from e 10 ee above
the bottom OF the canal.
In front Of the Middleton mills the canal fo7 200 feet
is lined with heavy wall II feet high, the FIRST feet
81, N
the mill from the water in the canal Through this
wall there is suice by which water conveyed TO the
machinery Of the mill At the head of this level IS
the Seven islands DAM extending across an arm OF the
river upon roc. foundation, beng crib dam about
300 feet long II feet VIDE al the base and 81 feet high
The Northern abutment of this dam, the guardlock ,bc
lateral succ for feeding the canal, and lock No Sarc
all connected together the three first being of rubbe
masonry the last being stone lock with the facing cut
out Of granite transported IRON quarry distant ~
miles on the river below.
The feeding slucc is an opening Of 70 feet by nearly
3 feet The guard-lock is calculated for small river
boats only, will be impossible for the canal beats to
the river above the dam, the rciluent waters
at this point not extending to the Southern shore Inc
d. f:c ultics IN the last and half mile upon this r-
vel were Of the first magnitude, Insonuch that with
the exception of the first or slower level II may &c
regarded not less formidable and expensive than any
equal portion of the first grand division OF the canal!
Upon this level there also farm bridges, and
cuvcrts varying in span from to 10 feet; those ever
L:,,lc Brcmo and Big Bremo creeks spanning respcc-
lively - and 10 feet.
~ lock No l. we rise to The nineteenth level. which
| i. tni!c and AZ yards iii length The whole OF thls
level i. along rocks hill side bordering upon The river.
The excavation prime raily of rock. The bank al
the canal was here thrown INTO the trd Of the river In"
greater port Of the materials coming from Tie tops u
In. bordering hills; aud throughout ITS whole cAtca'
Il i is protected from the by slope wall y feet
high.
Lock No. 10 conducts us by rise Of $40 feet to The
t,rcatieih level, having length Of Il miles and so
wards OF THIS level = miles common excavation
of red clay the cutting ranging from 10 feet and
about quarter Of mile excavation of rock from
the hill side.
For the distance Of 4 of mile the embankment 10
vcry heavy Parallel to the rock excavation the bank
protected for The space Of I7G yards BY slope wall