CIHM Microfiche Series (IMonographs) iCMH Collection de microfiches (monographies) Canadian Inatituta for HiatoHeal Microraproductiona / Inatitut Canadian da microraproductiona hiatoriquaa Tcdmical and BibHoraphie Nam / Nqim tMlMiquM at biMioflraphiquM The Imtituta hM antmptid to obtain tiia batt orifinal copy availaMa for fihnint' Faaturat of this eopy wMch may ha WMiotraiAieaNy uniqua. wMdi MMV aMar any of tha lma«ai in tha rapfoduetion. or whieh may lignif ieantiy ehanta tha owal matliod of filwlnf, aia chackad balow. □ Colourad cowan/ Couvartura da coulaur Covari damaiad/ Couvartura □ Covf';* raftorad and/or laminatad/ Couvarttira raitaurte at/ou paNicuMa □ Covar titia tniuin§/ La titra da couvartura manqua D D n CoMHirad map*/ Cartas gtographiquai an coulaur Colourad ink (i.a. othar than Mua or Wacfc)/ Encra da coulaur (i.a. autra qua Maua ou noira) Colourad platat and/or ilhntratiom/ PtanchM at/ou illustratiom an coulaur Bound with othar matarial/ RaiiA avac d'autrat documantt Tifht bindin* may causa ihadown or distortion along intartor margin/ La raliura sarria paut causar da I'ombra ou da la distorsion la long da !a marga intiriaura n Blank laavas addad during rastoration may > within tha taxt. Whanavar possiMa. thasa hava baan omittad from filming/ llsapautquacartainaspagasWanchas ^outAas tors d'una rastturation apparaissant dans la taxta. mais, lorsqua cala *tait possiMa, cas pagas n'ont pas M filmtes. L'Inttitut a mierofttmA la maWaur axa m plaira qu'il lui a MpowiMa data procurer. Las dttailt da eat a«amplaira qui sont pout4tra i WbUograpbiqua^ qui pauvai raproduHa. ou qui pauaant axifw una modifieation dam la mMioda normala da f ihnaia tont bidiqu** □ Colourad pagas/ Pagat da c o u lau r I restored and/or laminated/ I restaurfas at/ou peNteuMes 0: Pages d iseolou t ad. stakwd or foxed/ rages oacoioreei □ PagM deteched/ 0Showthrougb/ Trensperenee 0(teelitv of print varies/ Qualiti inigala de I'impression □ Continuous peginetion/ Pegination continue □ Includes index(es)/ Comp r e nd un (des) index Title on header taken from:/ Le titre de I'en-tlte provient: □ Title pege of issue/ Pege de titre de le livreison □ Caption of issue/ Titre de dipert de la livreison □ Mestheed/ Ginirique (ptriod iq ues) de le livreison m Additionel commentt:/ There are some creases In the middle of the pages. Commentaires supplimentaires: This item is filmed at the reduction retio checked below/ Ce document est f ilmi au teux de reduction indiqui ci-dessous. 10X 14X 1IX 22% 2«X SOX y ' 12X liX »x 24X 2IX 32X Th« copy filmad h«r« haa been raproducad thanks to tha ganarosity of: AnMvw 0f Ontario TOfOfltO L'axamplaira filmi fut raproduit griea i la gAn^roaiti da: AraMvw pubUquM d« I'Ontario Tofonto Tha imagaa appaaring hara ara tha baat qualitv possibia considaring tha condition and lagibility of tha original copy and in kaaping with tha fHming eontraet apadf ieationa. Original capias in printad papar eovars ara fllmad baginning with tha front covar and anding on tha laat paga with a printad or ilhiatratad impraa* sion. or tha back covar whan appropriata. All othar original copiaa ara filmad baginning on tho first paga with a printad or illustratad impraa- aion, and anding on tha laat paga with a printad or illuatratad imprassion. Tha laat raeordad frama on aach microficho shall contain tha symbol — ^ (moaning "CON- TINUED"). or tho symbol ▼ (moaning "END"), whichavar appiiaa. Las imagas suh^antas ont 4t* raproduitas avac la plus grand soin. eompta tanu da la condition at do la nattatO da raxampiaira film*, at sn eonf ormit* avac iaa conditiona du contrat da filmaga. Laa asamplairas eriginaux dont la couvarturs sn papiar ast imprim«a sont filmte sn eommoncant par la pr9mi9t plat at an tarminant soit par la darnlAra paga qui comporta una smprsints d'imprassion ou d'illustration. soit par la second plat, salon la cas. Tous las autras axamplairss originaux sc nt f ilmta sn commandant par la prami4ra paga qui comporto uno amprainta d'impraaaion ou d'illustration at an tarminant par la darnlAra paga qui comporta una taiia amprainta. Un das symbolas suivants spparaltra sur la darniira imaga da chaqua microficho. salon is cas: la symbols ^-m- signifia "A 8UIVRE '. la symboio ▼ signifio "FIN". Maps, piataa. charts, stc. may ba filmad at diffarrnt raduction ratioa. Thoso too larga to bo antiraly includad in ona axposura ara filmad baginning in tha uppar laft hand comar. laft to right and top to bottom, as many framaa as raquirad. This following diagrams illustrata tha mathod: Laa cartas, planchas. tabiaaux. ate. pauvant itra filmte A das taux da rMuction diffArents. Lorsquo la document ast trap grand pour *tra raproduit on un saul clich*. il ast filmi i psrtir da I'sngla sup^riaur gaucha. da gaucha * droits, St do haut an bas. wi pranant la nombra d'imagas nOcsssaira. Las diagrammas suivsnts illustrant la m4thodo. 1 2 3 1 2 3 4 5 6 . i THE SOULANGES CANAL WORKS CANADA By C. R. COUTLEE. Auoeiatid Manbw, Oaaatton Boelatr at CItU ■ii»1ii «t i . AwtoUBt iBglcMr, BoulansM Oual W-wfea. (&«prlot*d from BngliieerioB N«wi at April 18 sad Jnlr 11, IML) MBW YORK. uea. ^fll PART I. B*twt«B Pmcott and Montreal the freight traf- fle ila, that replacea the old Beauhamoia Canal, wltieh was 9-ft. draft only. The location, deeltn of leeka unf. superintendence of construc- tion *•- ■ Of a entirely In the hands of Mr. Thor ' Past-President of the Canadian 8oci« Bnglneen. His 20 years' ex- pert -itflneer of the Welland Canal, cou; dies of forelsn practice, have led to th- ..n of sc i:ove the working level, and the baae of the lin- ing Is 5 ft vertically bdotv water turface. Ther* are no large boulders to become dlsplac3d and carry several others with them; but the- 2-ln. metal and fine grit torm a knit slope, and repairs are easily made by dumping broken stone where required. Bod Is laid upon a slope above tho coping anl for a width of B ft. along the top of bank. Along the n0 ft. wide, excavated in lime- stone rock. In this, four parallel lines of cast- iron pipe were laid. Each ring of the pipe waa 10 ft. in diameter, •') ft. in length and 1 in. thick, atrengtnened by three fllleta. They were laid plain butt lolnts, and then the whole pit was filled with concrete, which waa carried up 2 ft. over the irsa The rings provide against a bursting up-pressure, which would occur if the river were in flood and the canal were emptied for repair work. H. R. Ives & Co., of Montreal, Quebec, made the cast- ings in a most creditable mann-^r. ROUGE.— The Rouge Is passed under the prism In a similar manner to the Dellsle, but only two lines of lO-tt diameter pipe are used. Tlie foun- HHiilii mm imtUm WM on bouM«r m«t«rt*l uadarlyln* Mm* SO ft of bliM etey. ORBASB.— Only MM Uii« of 10>ft pip* wm >•• qaind tor tha Oraoao fUvar culvert; the found*- tlon WM on pUm. An ncddant oceurrod durinc ooMtrnetlon. JTlg. shows tMa pips In piaoo nnd partly covsrsd with the concrst* lllllnc. Ths wntor, with which th* pit was flilsd for protsotlon ngminat froot, burst out nnd Its hsovy lc« eovsrins settled down on top of the east-Iron tube, which had only boon half oonoreted. Many rlncs wer-t broken, but they wem repaired In place with an- gle Irons and bolts. DRAW BRIDOBS. Four bridces cross the summit level, all of slnil- lar deslcn. There la no pivot pier in uildchinnel, but Instead the pivot Is placed In tin* with the south bank, and the w! Me width of the bottom 100 ft.. Is free .'or navlsatlon. A bo\t pantng along th* prtsK reiembles a movable dam and piles the water -tt any restricted part of the chan- nel. The currents thus created tend to swinit ves- way OO ft. wUis on bottom, with S to 1 slopM. U Is throttl*d t - two Ian* "atonoy" slalosa. SO ft. X 22 ft., whieh hoiat up Into a stsel supwMmotVM rcaemblla* a doable gantry. The guard g»t« It- self la 46 ft wld*-th* wMth of a loek-aa4 om. BtoU of tW3 h^low v»itMt abtttmeau witli splay walls above and betow. Pig. 9. A pair «t gat* exaetly similar to look gat** r*volv* In th* ^qaoln* and ekM* against nilUr sill*. Th* splay walla above and below are of oonoret*, and ar* mad* tO ft. wide to form a roadway on th* south lUtow Through th***, arches of 15-ft. spaa ar* p(«rG*d to pass th* f*ed water Into the raceway and out of It A foundation platform was first mad* of eonerote 12 ft wide and 2 ft. deep, and upon this the arche* were built The** slabs and that un- der the guard gate and sluice rest directly on hard blue clay, and have given no trouble. LOCK NO. 4. Between guard gate and look th* ordinary s*o- tlon of canal prism Is r««umed for about 800 ft Bplay walls, as usual, are placed above and below Fia 2. TRANSVERSE SECTION OF CANAL PRISM; SOULANQES CANAL WORKS, CANADA. s*Is across the canal. To avoid this the primi area Is increased at the bridges by excavating In rear of the pivot piers (r*^ 7). One arm of the bridge spans this side basi' and the other spans the canal proper. Practically all the bridge ma- sonry Is concrete, only the copings ttA pari. pets being of stone. All Ironwork li palntt with white lead, and the graceful superstructures, contrast- Iny with the green banks and adjacent woods, Rive quite a picturesque effect. On top of each bridge a red lantern Is placed exactly on the cen- ter linn of the canal, showing both up and down, as a danger stgral, when the Uraw Is closed against navigation. POWIUt-HOUSB. The canal power-house Is situated about the middle of the summit level, advantage being taken of the crossing of the Grease River to vs* It as a tall race. Tbe power-bouse la com')lned with a waste weir and will be described further on under electrical Installationi. Some 720 HP. Is generated for lighting and for operating {.-ates and valves. OUARD OATEB FOR LOCK NO. 4 The summit level ends with a guard gate and lift lock. Ths guard gates are 1,000 ft abo''* the lock, Fig. 8, and are never opened 'untP .i lock gates are closed. To the south Is a feev. lace- .'he lock to lead In vessels. A raceway to the south. Fig. 8, passes the feed water to the reaches bek>w. It Is 27 ft wide on the bottom, with 2 to 1 slope* giving a transverse area at working level of 1,100 sq. ft. A regulatin-T weIr plaaed acroas the end of the raceway In line with the foot of the lock, governs the feed to the reaches below. This a'Mr Is a concrete dam faced with cut stone and pierced by two submerged arches, '/.•hlch are clofied by "Stoney" valve* ft. wide and 7 ft high. Fig. ?0. The face of the wall Is buttreaaid and four blind arches widen th* top snfllolontly to give a 10-ft. roadway. Below this w*lr th* water Is turned into the canal bgaln through th* arches of the raceway bridge. The lock Itself is of concrete construction, only the face of the chamber sbove the iow^ir reach wa- ter level being of cut stone. The low lahad to aa lavwt M Ina. thiek alone th* emtw BaA 8 (t at tha atdwi. Tb* npp«r and o( tbia floor flta acalaat tba drela of tba braaat wail and tba lowar and to flatobad witb a Itna of out atona blocka. Tba lowwr mttar alU to earrlad on ptlaa; It eonalaU of a oiaaa of ooncrata astandinc S ft. ba- low tba floor, whiob forma botb an aaebor block for holdlns down tba •Ilia and a out oft aiatnat leakaia. Two I-baama ara laid diraetly undar aaeb alll and through tbam paaa aaran bolta, IH Ina. in diameter and T ft lonv, tba wbola balng burled In the maia of concrete. Tba anda of tba anchor bolta ara threaded and paaa vertically tbrougb t*-a 18 x IS-ln. oak allla, which are held down by larca nuta and waabara. The upper roU ter alll la carried on a circular breaat wall ax- tendtnr ceroaa between tba lock walla and to an- chored down In the aama manner aa the lower one. The braaat wall to a maaa of concrete faced with heavy cut atona aahlar. It aervaa to take the ram of aacandlns boata, tbua pravantinc their bowa puahlnr open the miter of the upper satea from tba lower *lda— a frequent jouice of »oci;!ent. In front of the breaat wall to another croaa wall, which reveta the end of the upper i-ea/^h. It forma with the breaat wall a bay. 30 ft. acroaa. and the full width of the lock, 46 ft. From thli head well the longitudinal wall culverta are fed In flll- 1B( '.be lock Tba culverta are ft. / ft. with arched roof and are provided at each end with "Btoney" valvea. These allow the water io flow Into or out of tba lock chamber, with whleh tba culvert to connected by 30-ln. pipes, ten on each sidb. Tba method of construction was to lay the whole ooncrata foundation slab under the walla and across tba enda. The floor of the head well, the floora of the culverta and the lower miter ?lll ara aU on tba aame level (El. 125). Upon this tba molda for face and rear of walls and for sides of culverta were tet up. The concrete waa mixed by band along the aldea of the pit and wheeled In until the spring Una of the culvert arch waa reached. A treatla bad then been comoleted through the lock chamlier and two traveling dei-- rieka erected upon It. These swung In the con- crete witb akipv. The poata of the treatla aerved to bold tba chamber face molds, which were 14 ft high. Abov> thto height the lock wall waa ashlar, the flrst course projecting 2 ins. and be- Ing rounded to form a rubbing courae. REACH BEIiOW LOCK NO. 4. Below iXMsk No. 4, a reach aimilar to the mit level extenda for nearly 2Mi miles. ! a mile below the lock there to a road bridge Ilka thoae on tba summit level. It to founleJ on hard hlue clay and baa given no trouble from tettle- iL All swing bridgts are at right angles to IlJMJJT.j J. HI mtimvs* 3 ' iiimitS %\ i ■(fWiSMril • fMOt -|DOdK - pot^ ^Jw*« i ■ poOtlQ ■ jooM ■g"m^ til* Um of OftMl. TIM BorU buk. m on tli* FloodlBC Um donpad atajr wllfe • wj uiiS< r Jmm ■uauBit tovM, It 60 ft. wl4« to lUlow i-pao* for • mMsdam ro»d to rvplact th* old rlvvr ro«d cut off bjr tiM Mai. The Muth bMtk !• IB f wid* tt •a •lovatlon of S ft tbov* w» ' I«Ttl Iron plpa paaaaa a imall craak. Tha raaeh anda at tha CaaoadM Lock*. Tha watar aurfaioa la oon- aUntly kept at elevation 140, slvln« 16 ft. of water, or 2 ft under veaaela drawinc 14 ft KARTH WORK. The tower entrance of tha canal la cut Into a tonfue of land eaparatlng the Ottawa River T -im the St. Lawrence River. Thla point la of . dam sanditone, but ■milt for buUdlnc ma» ; , thouth It waa muct . ed for concrete. For a dla< tance up of 1,000 ft It la denuded, then It le loat to alcht under a BO-ft. olar bluff. The Potidam contlnuea fairly level for About eleven mllea weat whan It overlaid by ealdferoua rock. From tha lanaral profile. Fir. 8, It will be leen that the clay Burfaea riaea abruptly at Caaoadea, then very gradually for about Ave mllea, after which it contlnuea at a general level only allghtly above the aurface of Lake Bt Francli. The lower half of the canal la In hard brov-n clay overlying a compact blue clay. The next quarter la in a toft blue clay with only, a scant covering of aandy brown clay. The upper quarter la In boulder. Over 200,000 eu. yds. of rock were excavated at the upper end and nearly 100,000 cu. yda. at the lower. Besldea thla there was over 7,000,000 cu. yds. of earth excavation of all kinds, varying from soft blue clay to qulckaand, wet gravel and hard pan. Oenerally the surface brown clay waa removed by wheel scraper, and the front parts of tha banka made up of It. The bottom waa excavated by •team shovels and cars (Fig. 11). Three-yard cars of 8-ft. gage hauled by ten-ton looomotlves on 80 to B6-lb. rails were extensively used. Standard gage plant waa used on the Onder- donk sections five miles In length. Sixteen mllea of track were employed and the main line along the canal bank connecting with the Grand Trunk Ry. carried all the materials and supplies to Look 4. Earth from tha steam excavators is often In larga lumpa which oannot be cut up and com- pacted Into banks aa tite output ia too rapid. waa temnd to ba a tfela dUBeolty. A daauuid for dis^ >« ratua would bo doub* ba mm by tha ahoval ttfaotfran, Tha rook asoavatton waa dona In the ardlaary manner by ataam drUltag and derrick hawdllug. All tha rook at Caaeadaa haa beau uaad up lor concrete, ato., ■ i other torga amountk have baaa employed for .^nk lining along tha eaaaL Tha atone aide aktpa preteetlon amouata to IBB.OOO cu. yda; It waa ganerally duatpad'Into the notch from carta, but acwia haa bean trana* ported by scows, since opening tha eanal, aud da« posited from gang p'jutks, CRIBWORK. The only extenalve uaa of timber waa In sub* merged cribwck foundations for tha ujtper and *ower entranc 'en Thla waa all made "eloae- vork," of 13 -In. timber, moatly hemlock. The nrlba are ft wide and about 10 ft In heigh, with t«.j rows of longitudlnala, and croae- >ia* <>vcr> ft. They were generally built In lOO- ft. Unatt)«, floated to plaea and fUled with atone or V. io> rs from tha exoavatlon. Along the face a plat.o' m of 12 X 12-ln. timber waa laid Juat ba> low water and a concrete dock wall built upon it The wall and crib foundation waa heavily backed with stone filling. Caat-lron mooring poata are employed throughout. They are cylinders 10 Ins. In diameter and 1 In. thick set in cubes of concrete B ft deep, from which they prelect 10 Ins. Be- fore settlpg each post Is rammed full of concrete. For each coniract a bulk sum waa bid for un- watering, which included pumping, making and removing dams, and removing lea and snow. SLIDES. The greatest dlflleulty encountered In con- struction waa the slipping of the clay aldea of the can along about two miles of the stunmit level. Most trouble was experienced at the St. Emman- uel road croaalng. Here an Inch 'od could ba eaa- ily pushed down 80 ft tbroui^ blue clay fetehlug up on rock or hard material. The canal Is In 28-ft. cutting and for the north abutment of the road bridge, piles were driven down 40 ft more below the bottom. A oonorota foundation slab, level with eanal bottom, waa laid upon theaa pUea about tha beginning of No- vember. A few days later 800 ft In length of tha north slope slid out over tha foundation and half way across the cut Next seaaon thla slip waa excavp'ed, and the north abutmentr-a concrete monoll.n of 1,200 cu. yda.— waa built upon the foundation, which had not been Injured. Between this abutment and tha face of the old slip, about 100 ft. In width, aU tba blue otey waa excavated to oanal bottom aii4^a apaoa retUIed with dry brown elay laid up m layers by wheel aerapers. Toward the end of Oetobar, 1807, however, an- other sudden slip occurred at the aamo place com- Mtf— "nan»v*rM S«etton C-D-t-T. ^ 1 4»» *«■ Calvtrt. Fltt 6. DETAILS OF CULVERT FOR DELI8LE RIVER; 80ULANQE8 CANAL WORKS, CANADA. plaUIy fllUnc tba canal acaln- Fir. 12 shows the appearance ot this alMe. The abutment was fwead out 80 ft. Into the prism and canted over, beadlnc the foundation piles like whips. It was not eren eracked, Jiowever, and had to be blasted out pleoe by piece. For over a mile this north canal slope has Anal- ly been flattened from a 2 to 1 slope to a 4 to 1 with a heavy stone toe. The blue clay deposit constitutes a "mere bleue" or saturated clay lake, through which the canal, during construction, formed a deep drainage ditch. The snbwater plane gradually sloped down to the canal bottom, draining in under the slope until than lower down the canal where the brown elay covering is thicker and nearly Impervloas. 8URVET WORK. In establishing the center line, posts 10 Ina. in diameter and 20 ft. high were set at the intersec- tion points of tangents and also along tangents at about three-mile intervals. A transit was inter- polated between these poles and during ten years it has never been necessary to keep reference hubs. The long curves of large radius required all cal- culations to be actually worked out as the dif- ference between a 100-ft. chord and the curved aro became noticeable, and the tables could not be \ FIG. 6. VIEW OF SINGLE-PIPE CULVERT FOR GREASE RIVER DURING C0N8TRUCT0N; 80ULANGE8 CANAL WORKS, CANADA. its friction was destroyed and the mass slid for- ward, settling down along vertical cleavage planeb as it moved. The whole matter was aided by the fact that the blue clay beds, 3 Ins. thick, seem to have dried after deposit and cracked like a mud beach. These vertical cracks allow the water to percolate down and create hydrostatic pressure. The surface covering being sandy along this sec- Bon aHtrwed storm water to enter more readily applied. The upper curve, three miles in length, was divided into halves and tangent poles set at the intersection of the tangents for each half. For field work steel band chains and 1-ln. gab pipe pickets were used. A 500-ft. chain did not prove itself of much value. The ground surface for 300 ft. on each side of canal center line was accurately cross-sectioned, some 20,000 readings being taken, This work was M StMtljr bMtuiad by the um of two rods for Mioh Uma. TiM right oC mr vmriM In width, but la ■narsilr 20O ft on Mteh side of tht center line of ▲bout 960 Mrea were taken Altogether, fhmu bou^t for waating ground. were plotted on a natural Fig. 7. View Showing Typical Highway Swing Bridge Crouing Canal; Soulanges Caiial Worics, Canada. •cale of 10 ft. to an Inch and bound In booka, con- tract by contract. On the right-hand page was plotted the north half of two cross-eectlona and on the left the south halves, the middle of the book being the center line. This generous spac- ing, though bulky, haa proved to be very con- veient for progreae, estlmatea, etc. Borings were taken every ten cbalna wipi a 2-ln. auger attached to gaa pipe. Numeroua teat pita were alao dug, aome being 40 ft. In depth. Gen- erally B to 10 ft of hard brown aurface clay waa found to overlie blue clay varying from tbe con- •lateney of tough cheeae to aoft butter. The preliminary hydrographlc survey at the lower entrance waa made by a fan of aoundlng For cloae aoundlnga a Uae of boarda 4 iaa. wide and hinged together In 10-ft. lengths waa floated into the line and aoundlnga made along it from a boat Blight breesea deranged thta h>ng float ao it was only useful in calm water. Skeleton rafts. 200 ft long and 25 ft wide, were also used, the aoundlng man walking along the timbers which are flshed together with plank maA spikes and well croaa-braced. Bounding through the toe at Caacadea waa im- praettcable owing to anchor ice and "fraslL" This is caused by the agitated water pouring through the Caacadea Raplda being unable to orystallae through cooled far below 0*. C. In an instant oC rest, however, articular cryatala are auddenly formed. Theae drift down and accumulate in atiU water beneath the aurface ice, forming im- mense masaea resembling wet wool and event- ually packing the river full to the bottom. Sub- merged bergs, aeveral aquare milea in area, are thus formed, which choke the flow, and the water stands at vartoua levela In iaolatcd poola. Dttter- encea of 2 ft in level were noted in holes cut only SO ft. apart, so no aoundlnga could be done under auch conditions. "Frasil" c? "cinder" ice mixed with large cake ice haa been obaerved 80 ft in depth. Iiong linea of aoundlnga were generally made by atretching ateel wire with a cork float every 20 ft betwe«i nitu anchored in exact posi- tions. The transit work included traverses of roads and the shore Ulne of the St. lAwrence between the head and foot of the canaL All these were tied on to the center line forming closed traverses of about three miles in extent: the results have been very good. There waa alao a large trian- gulation of the vicinity. The leveling has be«i very extensive as lines FIO. 8. DIAGRAM PIJkN OF LOCK NO. 4 AND GUARD GATE; SOULANGES CANAL WORKS, CANADA. Unas radiating from a flxed point ashore and ex- tending two or three milsa out A boat with aex- tant observer, sounding m«n and recorder aboard, waa rowed out keeping in range with the flxed hub and a movable back flag. Each aoundlng was flxed by measuring the angle between the range aft and a dlaUnt known aide point. To plot, a line, parallel to the range line, :a drawn through the distant aide atation, and from this the sex- tant angles are laid off to intersect the range. were run to Kingston, to Rouse's Point and to Montreal, thus connecting with sea level at New Tork and at Quebec. The results proved won- derfully correct, though no attempt at precise lev- eling was made, a A there Is the satisfaction of having elevations, which convey smne meaning and may be compared with distant points and re- ferred to In descriptions and reports. A photo- graphic record haa been kept of all the conatrue- Uon. 11 PART II. THB CABCADBB LOCKB. The thre* CurxOM locka, Flc 18, an eaeh SSVi ft Utt. With their attendant ayeUm of baalna and reachea, they occupy about 4,000 ft in length, the total deacent made belnc 70% ft at low water. They are all in direct line, and between eaeh the fuU prism of the canal, with 2 to 1 earth alope ■idee is reanmed. The reach between the upper- most lock and the middle one la 1,600 ft. In length, and that between the middle and lower entrance lock is 1.000 ft Ions. Alongrtde these looks and reaches, but sufflclently aeparated from them to prevent currents, are raceways ahd basins to feed the lower levels. Each lockage requires about 308,000 co. ft of water, which, if drawn from the short canal CommanleatloB is secured throughoat the sys- tem by three lines of roada, or tow-paths, IS ft wide eaeh: one along the north of toeks and reachea and on* along the south of r^eawmys and «.7ouad the baalna. A central path, with arek bridges, to allow of feed water oommuolcatlon. divides tt * reaohes from the raoewaya. Ovar thaae patha carta can pass with machinery or svppUes for repairs. The tow-paths are really ontr ser- vice roads, as all towing la dona by tugs. Caat- Iron mooring poats are provided along them at about 100-ft intervale. Splay waUs below and above each lock secure the safe entry of boats. These are tangent to tbe lock wings and flare out at an ani^e of about SB* to the canal center line. Stone steps below eaeh FIQ. 9. VIEW OF QUARD GATE ABUTMENT, SHOWING GATE ANCHOR BOX AND OPERATING BAR; SOULANGE8 CANAL WORKS, CANADA. reaches only, would lower them sufflclently to strand boats. To avoid this the surface Is in- creased by side basins. The middle lock haa a draft area of about 676,000 sq. ft, and the en- trance lock has nearly 680,000 sq. ft, over which their respective "draw-ofCa" are distributed. As the full lift of the entrance lock (23% ft) is only at- tained at extremely low stages of the lake, its expenditure of water is generally less than the others. The side ponds are connected by regu- lating culverts, which can be made to operate au- tottatleally, and through these any loss in the lower reachea Is quickly rectified. lock secure the rapid handling of hawsers from the lower to the upper level. In fact, easy aooeaa to all parts of the system is provided. The topography is peculiarly well suited to this bold design of high lift locks. The first, or fool lock (liOCk 1) Is located Just where the rook, Potsdam sandstone, caches the greatest height in the Beanhamols anticlinal, and dips sharpir Into the Ottawa. To the west the rook surface, though irregular, continues on a general level slightly above the canal bottom, aa tar as the second lock (Lock 2). Here It rises suAeleatly to place this structure In from 2 to IS ft of rook 12 f t:» rock »t thl. polBt. Mrr*. to «?»»", "^"^ ■oUdly In BO tt of ImpwfTloiMt •wrth. Up to th« iMtt loA (l«cli •) tho rMwh la » cUy t t oror w It. la dmtH. tho bottom bote* tomh biuo cl»y. UKk 9 WM ftom 2 to 12 ft. abore the lock wr- tMO, 00 podMtala ot concreto woro buUt and tlia look walla tooadaA upon tiMm. t,C>CK CONSTRUCTION. ▲U tbTM of tha Caaoadaa tocto ara lotmdad upon rook. Tha ptu wara aseavated and tha looaa atcfla pUad at ona alda for um In maklnr oonerata. Tka Inaenlarltlaa of tha bottoma of tha pita wara eoneratad np to floor laval. and upon thla tha aide walla wart be««B. Fl». n ahowa tha general itnictural detaUe of I-ock No. 8. whloh wUl alao ■erva to UluatraU tha almUar conatruoUon of loeka Noa. 1 and 2. Tha aide walla of «ach look ara SBB f t In lensth. raaU upon a pirot caattac and It la held by a gttdgaon and oollar at tha tw. Tha gatao mitor acainat each other and oloaa acalnat a*▼• !>•«> OM^ Md la suffletont quaaUty. Tbo baU-doaoB brands eontraotod for boTO In- variably mora tbaa fqlflllod tbo toots, wbleb woro eontlnuottsly earrlod on at a laboratory npon tbo work. Tbo masonry work waa carriod on rapidly. 1(K- 000 en. yds. of eoneroto and faoo asbliw par montb bolac laid dwiac part of tbe ysar. Mo bnUdln* was dono at nlcbt: In faot, tbo nltbt waa nsodod to brlns up suppUeo of oomont, stoia« aBowod to dfop down upon tta ooatonta. rmr Uttlo tamUas «M rovUrod, bnt tbo oonorota «ma wtfl of tbo asblar and aloiw .«i»t busy sboToUnc tbo dry matortala over and <>vor toward tbo boppir. Tbo mlaer did tbo rast and tbo oonoroto dropped ln«.o ««OBoa and waa baulod by lortmotlTos or borssb ts tbo lodL OataaemA- r Lantpt'* 3. DIAGRAM PLAN. mortar firom tbe rear. Tbls gave strengtL enougb to prevent tbe soft ooncreto baddng, wblob was Immediately laid, from bursUng tbroniA tbe Joints. After tbo concrete backing bad aet tbo wbolo course was grouted. MBiTHOD OF BUIIjDINa. Oencrally a four-mast traveling derrick. Fig. 16, mounted upon a strong trestle about bait tbe belght of tbe lock walls was used In constructing the lock. Beneath thU were the supply tracks, one along each wall, and an outgoing empty track along the center. The two leading booms of the traveler laid the aehlar, and the two foUowing booms lifted and deposited the concrete backing. Between times large masses of rough rock, from the ezcavatiou, were run in and let fall upon tbe visoouB concrete. Boxes, mounted on troUeys, were fllled under a Cookbum concrete-mixer, which gave an almost continuous stream. An abundance of water was used in mixing and the walls were kept aa wet as possible. The cubic-yard b M M. fk. aad • iMiHi «( brokM ■!•■• ■■ n^ «■• ft., wan aM<. Onst MOMony wm aitoctad tor tka mm of «l»- oftwi emr A oiMo ru« ib bIm. wktek OMBMIt to tiM DapMtBMt Md Mad Ud _ stoat to tho ooatraetor, aad wlUok haa- J tlM work. Orard would bava tmttm ehaap- tba ooaeraU. bnt It waa aot aaad. Tbt aahlar la all bnah-hammorad llnMotona. aad 9t largo aiaa. ▼arytas from S ft to 1% ft. la koickt aad oftaa 6 ft. datp aad 8 ft leas. Th« ooatraotora aarly appraolatad that, aa roach baeka woro anowad to projaet tato tha aoaarato baeWac. tho largar tha araa tha aaora prolltahla waa tha atoBO. Baadara raaalac 5 ft. haek lata tho wall WON ra4«lT«d at 11-ft. latarvala. aad tha boad waa atrieUy aot laaa thaa 12 laa. StrttdMra wart batac yaid tar. Mapa aa waelal priaaa, o< from IM ta «H par o«. y«. Tba laaaral priot for aoMrata. wkatkar ia < ia« a< look or la a waoM t kla aUa a t a r t a , IS. aay IMS par oa. yd^ aad tka barral 4rf ooat oa aa avoract |3JMk Tbt dtrrteka aaad apoa tho w«tk bad TD-fi. auwU of Doaclaa tf? aad SS-tt. tho aana tlariMr. Six wtra i«ya wtra donbia btooka tor tha booai tan. aad i alto for tha aula taU. f«v« with % te 1i>ia. atari win. Thay wan all taralahad witk a it-tt. bori- Boatal awlagla* olrela aad opantod by oao raa- aar. Tha holat boiMra won aboat V HP., aad tha eapaolty of tha darrloka aboat 10 toaa. To avoid book bolaa. a taat ^'a, Uaad with a 1-ta. taytr of load, waa aaad. aad cava graat aatiatao> tlon. Fia 15. VIEW OF LOWER 0ATE8; LOCK 2. to bt at Itaat 2H ft datp into tha wall, but (tntr- aQy thay an aaarly 4 ft. Hollow quolna an 6 x ft, and rtctta quolna an of almilar cna of bad. Largo blocfc-atonta, 6 x 6 ft and 8 ft thick, wan plaoad under the gate plrota in a maaa of eon- «nta, and the miter alUa an backed by blockt 3 ft in thickntaa. took eoplngi an uniformly 18 laa. thick, and 5 ft wida on top. with a 1 to 1 tnat batter. Some of theae an upwarda of ft la length. The price per cubic yard bid for aahlar waa from 914 to 118, and Included aU klnda of copea, quolna. aroh atonea, etc.. only tbe net content nf atonea Tba locka an an founded upon rook, but at Lock Mo. 1 a tranaverae cnvaaa* waa anoonn- tered. which eztendel 12 ft btlow tbe floor. Frwn thia 8,000 cu. yda. of wet eUy gnvel won taca- vattd and rtplaoed by coaente. The bottom 9t thia ereriea waa 80 ft below tbe water anrfaea of the Ottawa, ontatdo tho oatraaca dam. la tha pit for Look Ma 8. tha rook dipped irregularly below tbe floor, ao padeatala of ooaento w«a made under each waU. 6,000 on. yda. of ooaereto being uaed tor tba purpoaa. The pit waa BO ft in depth, excavated largely in blof c-'ay. A aiip occurred at the head, iriian It wfta pr opoa ad to 17 tanaA a, twiag brldg*. Th* BMUrtaU wm putly mamntiU aa« tkw pitea wan ditm. BHwmm tlMM tlM ■Hfptd auktOTtal WM rtplAMd bjr Ioom •toM, OTOT wUoh a S-ft. ptottona of oonorata wm Md ud U>« brldga bottt thanoB. XBOULATINO ODLVBRn. Mo OTtrflow watoa ur« lutd. bnt racnlatlii* e«l- TtrU, Flf. IS, tlM dMlCB of J. L. AUlaoii, C. K., an naad laataad. Thara ara two of thaaa com- maalcatiac batwoaa tha alda ponds and an ontftll ona. Xaeli ona aonaiata of twin tunnala of coacfaU laadinc tbrouch tha bottom of tlia ambankmant and throttlad by "Btouay" slulcoa which operate with aooBomr and aaaaaaa.. It .^ acalast tha faoa moid aboat lU iaa. tnm , 80 ft aqoara and drawlns 10 ft. wltb a aquara tower about 80 ft In balcbt and tba fun alaa of tba bull to naad. A gate leaf to rataad from a floating poaltlon to bang yartlcally agataiat oaa alda of tba towar by wire cablaa paaalng over the top a- 1 wound around wlnobaa on aa«b alda. Tba gala u tban floated Into lU raeeaa. gntly lowarad ont» Ita beel pivot and tba top aeenred by a atad oollar fitting over a gudgeon pin. R. * J. MUlar vera tbe oontraetora. 18 BLBcnucAL wnALLAmon. ■wttwwi pnvtowlF. tiM pcmmt-himm to ta ■MmUm vtUi • WMM mlr AkoM lMtf. Tka ad*- dto third o( tkto to wtduMd oat lata tka aaaal lo tona two vanlto for wkoal ekaaAara. Throa' arekad epmlBcai eloaad bjr litoaair" alaleaa. ara plaoad on aaeh atda of tba wkaal pita to form rtcatotlac valVM for tka •ammlt lavaL la aaak wkaal ekam- bar' ara toar Vlotor wkaato worklag oa oaa kotl- aontal akaf t Botk skatto paaa tkroack tka oea- erata daai la paekUw boata to tka gaaaratora. Tkt dam fonaa oaa wall of tka powar-konaa, whidi !■ a kaadaona brl