, 1870-11-24
THE ILLINOIS RIVER,
Progress In Making 1t Hurssnblc.
Description Of The Dam and Lock at
Henry.
Amount Of Work TO bic Done
Results Accompl3s1scd- :
xShs,ruet;nns In the RivoI-Wo1k Of the
General Governueut-Apptopr1a-
tons Made.

Cbs,xuctious In tho Rivoz--Wo1k Of the
General Governuuent--App9opr1a-
tons Made.
TIE Isoarn ct Canal Commissioners OF this State
net At the town of Henry, In Marshall County, on
TUESDAY last, 10 inspect the work that Is doing at
1hat rout for the improvement OF the Illinois
1i.vcr- There were IN attendance, Josepn Ut!ey,
pi Dixon. President Of the board; V. uckox, Of
Springfield, Treasurer; L. Milne, Of Lockport,
:'ccietarJs Captain rlhkhau, CLERK, and Nj, u.
C. Jeunc, Chlef Engineer. The Hon. Mr. bangs,
s~naIOr Fleet frum L2cpn: Hon. NJ. Hcsuhar1t,
AspIeSent4uve I a,a from pasnsm: non. NJ. J9uss,
NsJ, ff1n Eook, End q representative Of THE
IhlBcS4, wefr a1so present.
fkELdHtSAK1ES.
1t nAy be tet1e.ut,-led that toe last Legislature
provided LOT the organization VI the aouve
boa d. and placed 1t It's disposal, for the in.
pIus.ment oi tae !!!tnots 1ntsr, N approprla-
serrtcEs Vi M. DAniel {. Jenne, gentleman
rwenty MI yase 1rass' o. praccsi @ % c1rs1seaee On tue tue
Ette Canal, and WAS subsequently employed bT
1ne Grnttal ,vernlnent u euptfln1end The liu-
RrDyeHet.1s nlie III tn.. rapids OF the M.asts-
sippi, near Rock 1=l.Gd, and The work On tho ues-
Ai1cr careful investigators. 1T vas decided 70
a,la n',a i,sk sa eS.s at uenr, awentynlSe
AMI slec ncaiions were drawn, xnd on
1n l. ~ r. s%hass 4 ioE Foi1 the snt1Ee
At rates which keep thr total coEt within tac
limits of tnc appropriation, sulntthtnE unusual 10
Sna VIC ne her ts
yra1, the eondstlon Of ,he Itres being FAVORABLE,
next yea1 lie watcr toes not f1se TOO high, and
stay toO long, the work will be completed BY
September ], when the contract expires
Mn r. mi I
conveyed ty the AMOUNT It !s to cost, but only
sieta1ltd d. scrsp,ton can enable those Who have
not seen It to 1oEm correct estimate Of is size
S. far. ooc-aalt OF tne lock IA 1otshed, and the
1ounuauOn OF The dam has been begun The
lock il on the right bank 81 the nyer, and
the dam viii extend IRON the middle oi the
n 70 iss op2os,ss Ssnx s =, distance q
s10reluasours, placed On foundation Of beatlng
piles, Timber aid pdanI, loe chamber being Is
iett tde at tas top ct the walls aud 80 teef
TIE side walls Ct tie lock viii extend % feet
aboYe ire upper gate qnoins, and 70 feet below
tsct.rxular nc ] vii Wi.e naiuessss, II ID tae 100 loot IA n
EIaiGtt wings, 81 feet 10 length, slteh,lJ carved
at their connection With the main Ea.tE. and mar
oi Lie chamber.
The foundation cDns1StA IN bearing piles from
90 10 20 ieeI long, ihcnes In dtauieter 1t he
small cut and 1a fucaes At the larger end, driven
BY banner weighing !, 800 pounds falling from
under each wall, and t5ree Iows In the chamber
Ut the lock, driven U roWa czosswlse, three feet
apart from center 10 centre When driven. the
foundation uMhFtx.
Longitudinal nmocrs, II by Is lnchcs square,
pllea, three rows through the chamber, and two
VOWS under each wall On these lonXtadinal TIM
hers, and the other sl1 rOws OF pttes, the man
cypss timbers OF tue fouuca1pn are placed s1x
ALTERNATELY. K.
FEEDING the whole w1dth Of the foundation.
All the umbefs ute II inches square, and OF such
oi hpliee come over tae piles and On the lsugi-
1udiDal umberE- AL the &paccs, and Tor three
inches under Lie ct0as lmbefs, ulled With Con-
1hc piles and longitudinal tuoers rita 1soa bolts
Or sirapR Untstr t4e lower lnItre ELL tac cross
icn Gak and III piae naaS ei unifoa 9utSness M Is
laid cn the tIoss titnlw,s, .wen j1lntcd together,
ami secured ty 6~tncn ptGssed Haike, coyer the
Ok OF IiaE plahk is iOd over The nrn between the
LEX walls, secured by s-iaeh pressed SPIKE a.d
h s1ntee1 ~ o. n1uk snd IN ane m9s;
each tshe9. Five or LIZ courses of sheet pllia5.
1rum fur IL st1 ieet long, made Il s-tach flank,
lined with Inch boards, AID we, t1lled In with con-
civlc OF hotn kioes, G4ver tne lpcE foundation,
Alter the secoEd nuor IL lald, h1aattg umsers
GbT inches, arc to b. put On csosswisc at evesy
u ieet. an1 boIied t tbs foundation thinkers with
suitable ragged butR, ~ inches long, 70 secure thc
planllng from bei1g raised BY the action Of the
The upper mItse slll will he raised BY q wal, OF
masonry feet nigh, st.usla In external FORM to
the lower ntrse bl'I, out there will be culrerts
talieadJ ba.lt) Through The loweE part Of the Wall
Tor the passage uf water from the upper level tnro
The lock. Thv caivckss are feet wide and 1 to ~
feet high, with ecGtnentai arches. the abut-
The top a1Gnrs have skew back for the arch 70
RIArt from. The character OF tue masonry Is sfu-
,.a . osner Ra,t; ., 11s iosk s9a Is eops
5rcm ~ to 81 feet riRh, and 10 have batter on
lace Of haIf snch ~ lhe foot: TIC faces Of tho
10 le 1eet thick on top. Bussressea, feet loug
Feet thick, aud loH teet Rpart. are II be plared at
TIC rea5 oi the mai0 walls, ana come up within
Al the Quoins and recezsea the walls In
c1rsse 10 thickness to conform TO the plan Of
19p hSsfs e. asad q tns ees s1sns n
1cM, e1,T1ed ur plumb Oh bolh sides. The bala1ee
of inc hciXnt u leet thick. With . coping II
s Winv tns eooed n5 ,o tae
ere ca1nsd un II the tntl height OF the wAlIs, ex-
Tending above 4he breast wallis The wtngs at tne
siiEnilT a1l1sgs! at lhear connerison With thezn,
and s.aldIhE 10 feet At tho ends ftDm the line OF
ch.mi'cr. The lower end OF wlues drop from -
10 fee,, and aie hulI 10 d manner 70 make Eoo4
cocnesuons With the protection walls below
cULvKurS
The cutycFtS built IN lh9 lock walls, from the
wings, art > trel apart and hsre vertical Sides
connec.ed u the TOP hy semt-cltcular arch Of
1'ne ent1anca to them vii! he ttuE SIX onen!nga,
ia each Iecess, 3 feet kquarc, and from The cul-
vclt iniv tho tpacc below tho lower gaatea there
are TO br four openings, az By fcet, for tho dts
1ha12e
The UAEouIJ IS Of tue most sold and Euhst1n-
Tia. charaeter-crtdcn'iy put thers TO last: and
judging from the weight Of the stones, md The
manner In which they arc cemcntei, they viii b*
courses nc 3t and II inches thick alternately
1rza1J bound together By "healcssr from AZ L
9 feel long. m, walls Will be eop.d With ca1
On ne top I'D, and 81 feer long o. the 1ace. >
Al The eop!ng i ssi's tokc.net BY ison eo,g and
ss n naye
1ueut fresh, 1t Is not mixed unln wanted for use
ana Ill The stone nust be gauseA and cut 70 ii
not tnjass sae @ s;sps @aTesay % 1t Tne rules res "a
~, s ,hs ,syiag OF xae 81 nsssasy ar r. sts, ~ ~
tween TIE 18th OF March and the 18th Of October
10 that The tros may nut impair the strength o
the val. The tor Of The alls OF hanks, arc to h
I1vln Il 10 is nchss ID drr,h. set up cdsWlsc, an
.eit in a tcd Of gravel inches decr- The surfac
VII he smooth, aud. wheh tue river Is high au
OvernoEa tue emhnnknens, the waiCr Will slip oil
cssty. and do no damage.
The GATES.
one Of h The most trrots,as r,ns Of The :. Tos
tH.ss quality hise osE timber, entirely fires fror
Nahe chtcke. shakes, or decs5ed knots. tn
naS my t. 1 IL tour rirce nser eas of ihss i;ss
F!ze cannot he Obtained. inc Two lower and TO-
1lna BIC 70 be sond, composed Of four pieces {
TIMBER. Of such form as to make It 3 inches wild
nj the ends and u inches ia the ceEtre, forming
curve on The UPPER Eide Of is furbes vcsscd sint
straight on nc lower side. and Il irches thici
The other sibs are to be similar In form. VII
centrr. with three vertical posts bet Ectn, to hpi
the upper sidr IN form Of cutyc, cacn zth Ii 70 b
strengthened On tho lower side By dounae no
s.tds on Up .ad bottom, VIA : i hes1
snds wrought ieaua "a tho M upper end, ior hui, sn
ing tie gates The sockets ln qunin post nc /
TEST on heavy cast-l5un step, well nt.ed To tt
1uundAtion: Mruught-lfu1 sUaps arc to be put @
TIC quoln and lnlttc Fosss At ehSh rth and Of soc
length, u TO Admit OF 1Fo boasa through the II.
swing on +MeCa1shJs psn for opening u
c1otln3 gatea This Is slone By Suspension bars
wrought lion on each side Of the gate, e1tendtt
from he top Of the .quoln past 70 The bottom
rrp Of the lock wall And connecting by TWO hca,
plsteA ot ifu1 xnd Etcet ptDE, With SIX ptn
bars OF iron anchored in the walls of the Ioc
81 or pnsaT AZ = r. Pa
the tower to Regulate and adjust the gate
Tic gates ara 10 be pl2uked on q
n,sas Ss yta ,.3ss, a!1ss Tal.s s9ss: oas T.,
Suis fendc. p,4nk are to be Put On tue loK
side OF the Galca The wrought Iron used 10
II tho nrs1 QuaiitJ American .ron- Capstans I
ia!es cf iesels, 9a1s, ropes Ind chsins % ior i
purpose Of operating the gates. or they may
worked with gearing. maxhsnS on cogsed +
Ct EI,, and turned viii craukA
AID lion, OF such form az tra5 be ffqutrtd, are
I've inserted ID the valve platform ADORE The upp
Gates, which arc to be operated BY ltTcfs ai
sidts ef tie loci: Attne lower yates the sals
ia-- openings tn The gate reccsses, OF IN the M
<,u}venE through well ID The walls below I