The New York Herald Newspaper, July 27, 1875, Page 3

RAPID TRANSIT. The Plans of Elevated Railroad Jnven- tors and Constructors. —_—+—__. BRIDGING THE AVENUES. How We Are to Travel from the Battery to Harlem. THE AGE OF IRON. Descriptions of Projects Before the Rapid Transit Commission, We continue to-day the publication of descrip Sions of the, plans for the construction of an elevated rapid transit railroad, submitted for She consideration 6f the Commission by inven- tors, engineers and constructors. ‘I'he ilustra- sions accompanying these descriptions will assist ‘the reader in forming @ judgment us to the merits of the respective propositions, ‘The multiplicity 01 the projeots thus far filed will, no doubi, ental! # large amount ol labor on the Commissioners, bur the subject of construction is acknowledged to be Oj suMcient importance to warrant a carefal ex- amination of all, Those published to-day, seven number, are the Williams and U rwood, which combines the truss aud suspension princi- ples; the Meyers and Widmayer, the model of which has attracted so much attention at the oMce of the Commission; the Evans, which comprises @ series of iron bridges from span to span, cembined with wire cavles; the Ebier arcade scheme, which proposes @ railroad over fae whole sidewalk, opposite the present second floors of buildings, tie road to be bridged over strongly enough 10 allow the upper stories to be exteuded (o its ouser limits; the Morris de- pressea road, which contemplates an open cut somewhat ajter the style of the Fourtn ave- pue improvement, and two tron column projects, intended to occupy the centre of whe road, one of them coutemplating a suriace frack for freight cars, There are a number of pther plans now before the committee that de- perve attention, and others are In preparation vy engineers who prefer to wait antil the buik of shew competitors have submitted sheir propost- Bions, so that the Commissioners will bave ap pmopie fleld out of whicn to make their selection, at ie probable that the time for the reception of plans will be fixed by tne Comiissioners this fwees, DESCRIPTION OF THE WiataMs: 4) CATEARWOOD PLAN, The theory of the construction of this plan of elevated rapid sit viaduct is to combine the “truss” amd “suspension” principles in such a ‘way that tne towers and ordinary Oxed ground e@nchorage of tne cables is rendered unnecessary, conomy Bud iittie ob- principle is secured ‘by combining the stiffness of the trussed princi- le, Or equivalent for rigidity, in such & manner bat the rigidity and weignt of the structure is eubstituted jer tae ordinary anchorage—\nhat is Lo ) Of the two adjoining spans, to- weight wud the sérengtn of the Mciens anciorage for the cavies upon the span 6! ining the load or 6train, Jt will be evident that, with the advantages of this construction, & continuous #uspensiou via- uct of any length ean be constructed without anchorage, except, perhaps, a trifling anchorage of the last spaus at the termial. Or the terminal towers may easily be SO braced and stiffened as to id any anckorage, ae i ements tn- wolved in this construction of suspension bridges areas and original and very valwable; and, in etieCt, Inake a “rapid transit suspension viaduct’? racticable, With absolutely no actuai obstruction the wtreet way, either as to space, or ri &., except im the case of wide ireets; and in them, not mow than five or per cent of obstruction, when otuer plans of columns at short imtervals, piers, arches of m: gonry or iron, &c., Would amount to fifty or sev- nty-five per cent oj ovsiruction, Aud as Lo tn ary strength, the great strengtu of the sus- P ou principle is too weil known te admit of arguinent upon that poimt, either as to carrying light “rapid transit trams’ of three or four small cars, With @ light locomotive or dummy engine, Or the heavier traing and engines of the ordinary surface railroads, where 16 is desirable to bring them into the city limits, the structure being mecessaruy heavier aod stronger iu she latter case. ‘The suspension bridge principle has been pro- [sete in several plans, vut always lovoiving cum- ersome and obssructive towers at comparacively short mtervals, or other ieatures equally ovjec- jonable, Making the stiacture very obsatrucsuve ellas unsightly, Tais construction obviates these object.Qas—ol the obstruction and unsight- yiness—as it is woolly Lon-obstruciive and sym- metrical and architectu’ im appearance; the plan being designed to secure the advantages of The littic obstruction of the suspension principle Without any u Xcept simply wrought iron columos or t the long intervals of ihe corners of the lniersecting stre inside of the curb; or, i the street 18 wide, in the diagonals of Ine intersections, §0 not to be ovsiructive; ‘Wussed together with strong trussed or otuer Rirders in 6! way a8 Lo make aa iron tower capable of sustaining the weight and strain of the cables, which Will Lot Only no’ be ovstructive, but need nos be very kigh Jor the spans required Detweeo the intersecting streets uf 280 feet to 200 leet on the avenu ie towers only at the in- Gerseciions of tne lateral atreets, when the dis- tances between the intersections are not unu- reat, ungide of the curbing Ii the street is OW, Or in OF near she diagonals of the inte Lions if the street is wide, Im the least obstruc-_ tive position, in what muy be termed the “pei.” | trai points” as toobstruction, Spaus of the trusses aboat Aity oat Jesé—er they “may be vuilt con- | Mnvousiy—weil braced vertically and laterally at | ‘the joming of the sections or spans, if built in sections, | ‘Saddles’ for the cables on the girders of the columns or arches to admit of a slight movement Of the cables, to take the drawing strain of the | commmus, Or arches 11 adopted in piace of columus, | #o that taey will have only the vertical stress to | sopport; thougn there is little douvt but | iS THE WILLIAMS AND CATHERWOOD'S PLAN. WAY STATION rack =~ ———_—__—_—_____|___,, first would walt, that the trussed wrought iren columns or arches placed in the diagonais of tue intersecting streets, | &s shown, Would themselves sustain tue drawing | strain Of any load which would required in rapid transit tramMo, upon the spansof the length | Breer she total strain beimg divided by tio. | tween the adjoining towers or trussed columns, | | | ‘Trusses and track timbers and girders so con- structed and braced as to give the greatest rigit- My to the Upward or anchoring strain of tho cables, us well as tu resist tue downward atress of 3 jad Bud also to give a Grier resistance to | lateral defectioa. | It is confidently believed that the track timbers | and iron track girders cag be so combined and siiflened at their joints and tn combination with the floor girder: ve make the trusses for the ‘rackwWaya Uunecessary for the light trains and engines Or Aummies of @ rapid transit railway. if trusses are adopted the simplest and most economical form sheuid be used which will give The greatest rigidity to the vertical and lateral stress with the minimum of materia: and work in the constraction and raising. Tae estimated cost is $200,000 per mile. Catherwood declares that he would give bonds to Dulid it for this sul, and if his plaa ve adopted be can supply the capital at once. A DESCRIPTION OF WALTKB J. MORRIS’ PLAN. Mr, W. J. Morris, Civil Engineer, thus describes Dis plan:—I propose to construct an ordinary steam locometive railway of three tracks—a de- resaed, open, dayligkt road—to be constructed hrough the ceptres of any streets or avenu: Whe roadbed 18 to be depressed below the surfa of any streets from ten to twelve or more 1 ¥O ae not interfere With tne drainage of teen, and thirteen fe The gauge of the tracks is to ght and & half inches, cars seven te Wide outside and seven feet six inches high ig- from ten to twelve tons weigit. {a to be from mts ght to thirty- vi interfere wita the w: about eight and tare “ourbs.’? On str water pipes are on je only. of this roadbed are to be eons stone OF brick, rising neariy to Bireet, Iron girders, three and fou Apart, are placed upon ana pater these girders tes”? of iron or bric! over, excepting ten feet 1 peutre of the roadbed, in the centre of the stre ‘This Apace is lett entirely open for light and ve! tiation througaout tne entire ieugth of the r excepting at the crossings of the ts, the roadbed is covered entirely over, gir Sre s0 placed aud puved over thatthe proseut grados Of the streets would mot be ehanged. Around this opening iu the centre or + between tne blocks, there would be a ne coping and stroug iron railing five or six feet Digh, if necessary, on the inside of tuis irom rail- ing could be hinged glass suutters, swinging horizontally, to be closed up or made’ to meet in the cenire, to vrotect the roadbed from snow, While the sides would be open tor ventilatio: Mr. | would be reaches up tne masses of the people, transferring them from tie ho m the entire receipts of the present horse car road could be tal be transport on this 8) menged. up the slice of th be well dra Way man Will differ with me in expressir mevor been considered han fifteen or eighteen even when trains are opinion that it h make mo The central ack would be Jor tarouch or express ertuer sale or economical 0 UO more with tue jue ay MORRIS’ trains, which would pass eacy ‘otner at stations | one, two, three and four myé6s apart, When these trains passed each oe an leave until the othe< ‘had arrived. These trains nad & basis or pl upol Wick profita can be fairly tire amount of the travelling public sorbed by the thr rs desiring to reach the through or ex- tgs tod would purchase tickets for the and take any and with che the cost of construction of this per mile, averag Shan $450,000; equi ing Workshops, offic jor transportation of erage of 130,000 per da, The section of th NEW YORK HERALD, TUESDAY, JULY 27, 1875.—TRIPLE SHEET. PROBLEM OF: CITY | Opening | amon by steps down throwgh the | twenty-five per eent mor opening Inthe centre of the street, the side or way tracks at these special stations being placed further apart, #0 as to admit of a proper platiorm for the central trains, so that the tracks are never crossed to reach a t: . The side tracks are used for way trains, with stations every few blocks apart, which would take y express These express stations, being opposite or adjacent to the way station, would be connected by |, protected from the weather, mM Of three tracks passengerashonid a4 from South jerry to 1398 for tive cents, to Kingsbridge or Fordham for ten er trains running at certala ntire constraction of these lines of railway em should be accomplished without stopping thi atral line,’ to Forty-second street ot, should be completes id west side in twelve or cording to tue + $50,000, assengers would ‘East if line’? from South ferry to Harlem River, the raiiway comple! | fully equipped to trans; day, — cost $5,000,000. safety, the diference in favor of the er the POT’ 160,000 pass vated is too apparent to be Hace: Af ae G supporting the girders, and the roadbed, being ‘above tae soul Side Walk FROM THE SIDE STREE «| Und | the one which arrived no circumstances ‘The difference of time. bands for the elt number of pass ts for the steam cat, overcoming such di ked roud all 3 rates than dividing the recei ing along the same line. of passengers eompetition waich wiil “ap or down” Station desired. day- tain, and so establi vated railway will b treet railway, designed b: cuy, Its genéral In the iitastr ti only refer to some struction, traMc on any street or the een jon When they would in tweive mo length of formin, ning of s) at per mie, tuciud~ Capacity dean ay- ridges aro supported, dation of mas side oF Where the sti aoa ers per Middle, with supports, with platform landings, von Vien to the Ire use.of t As to ventilation ana ign of this de: “each 1 nd light of this de- ach span is anstain em more than One-third is envirely | of arches, and wire i mace in #0 as to break joints, Wrought trou and tne ow r strive p upper 3 n arcives It will not be | TO STATION s ; Wie & Wey Station IE While \ ty Hy oii A | Hit \\é pale fat 5 | i > is | = i } | | | ay | 3 et 51 | < [el Sas fa rial vanes ee =| | |} an a 3 #13 i | & 1M | | Fl ey pe i | 5 Ba} C (LJ pe 4 1S oF 3 \@ Fy - ‘sf 2 a eat 4: Ls © 20. em ce @ hotles “ a) 8 H 8 2 z a it the substantial iron columns atree leading avenues, the stru w 7 are inel tious of suitable lei OPEN-GiIRDER DEPRESSED RAILROAD. way can be culties, It to suppose that, of two tracks be constructed over the Third avenue horse cars, that the ee- vated trains will not transp TATION a.\ og =i. IronGirder I ft. Ly Upon these tubes are placed ves, With groo s, into which are fired to which the ratis are jastened. xbendiny jd by substantial abaiments at actions Of Pieved vi ued COM "SEWER LINE v DESCBIPTION OF THE EVANS BLEVALED RAILWAY. The engraving illustrates @ plan of an elevated mes W. bvaus, of this ro so clearly shown t, in describing it, we heed ctliarities of its con- it consists of a series of iron bridges, sixteen or eighteen feet above the ground, each having @ Span of 200 feet, corresponding with the the blosks on our city avenues, and | fee @ continuous double am street cars of tarouga the city, would Pea as May be deemed cessant trains which would be necessary on an elevated road, while the trains on the depressed tracks would make irom twenty-five to tuirty miles under ike ¢ircumstances, ne, would necessitate jort the same gers ina given time, while the skilled labor employed te waten and repair the structure would cortainly be fifty per cent more than the cost Of maiutatning @ track upon aa grades which [ have examined in regard to our own system would be excecdingly ati - | elevated structure, whereas a depr in that section of the cit} cult for an d system rt more than 6,000,000 per year, considering the stroa| be made by the Thir Avenue Horse Car Company, and their strong de- termination to break down any steam rail company Operating on that avenue will certainiy make the progts of the elevated road very uncer- Tate of fare tor the cle. ‘y difficuit question. aTREBT ck for the ad own in tue eut, bY upon & soun- id placed in the middie, or as may be most ex- aro wide, like our ure may be placed in supports at every crossing, he stairways leading to the utibg the only obatruc- sireest for ordinary pur- TRAVEL. EVANS’ EHLERS SEMI-ARCADE PLAN. PLAN. = TANI 7 ish ap h CR =O WENDTS PLAN, virtually to form one continuous requisite lightness and strength. support the track or roadway cal rods, twelve feet a to cross pieces under rods or bolts used tn, these ec and stroug for the purpose required, their givin, w terial, Will Intertere but little with or trafic, and w! it is located on th tv parts of buildings, The adapted to railway bridges generally. na | comparatively moderate, § for a double track being $361 ‘The owners of the patent @ contract for construction, will b diately and push the work through rapidity, DESCRIPTION OF LOUTS A. FHLER'S road is materially increased, ‘Tho sidewalk is to be ex not the o: nd the room ¢! addition to joining pro} cavations are eine tye 1otervais and Which form the support outer edge of ti either in the wi close to the same, of hve tubes, or any other suitable material, tae being about one foot in diameter, These columns are inches. asultable irom ved plat for the reception of th of said tubes may be c: waich are united by made that they form or: ‘The capitals o: iron and provided with suitable nus of the sey. din the wal in two The columns and pillars a: boams or girders, y Bes: arched girders re ams, Which extend parallel of the Retail. 4 ee, aud form a mean rt, and fastened by nuts being the only in 1 true’ bridges are in thie way rendered suiieiently lignt ecsed stone piliars which supp The columns will be from filteon to elghte apart, one series of columns bein u of the adjoining butia Wihieh may be made of cast iro! pillars, which of the ajoining buildings, ae aquare ana buutup of granite maited by arched Which will be cast or otherwise Mer steel or spring steel, and @ columns on tne ow posing the arches being spliced together 80 as iece of the nese arches if verti- tion. The with a sur- plus of strength which prevemts tne possibility of way under any strain to whick they earth bed. may be subjected in the ordinary running of cars, Again, the cost of constructing an elevated | It 1s adapted to a single or double track, and may Toad in the upper part of the city must be uni- | be used for wide or narrow stré , in the middie commotion. Thereby | formly the same, and to overcome some of the | or slong the sides. It has 8} 6 of ma- the least interception of light to pian is 10 Its cost is he estimate per mile 50,000. e prepared to take egin im) with great TRAN. * ‘oad This plan is an elevated railroad which rons over tae sidewalk on arches, and whieh is arched over So that the adjoining buildings can be ex- tended ous over the railroad if desired, a thereby the inventor claims muck room is gal and the value of the property adjoluing the 1 ‘ated where such is id will be an In these ex- for the side. constructed middle tube while the diameter of the outer tubes will be about six With these tubular columns is combined several tubes, and ¢ the columns are also mi at the 101 to the faces the con inside. , When they tween these adaitioual teces of timber 8 ei bove the Drage thirty to thirty-six feet in length, and, irom pier to | are pot up, they form continuous lines Irom one terminus of the read to the other, Be: jougitudinal beams are placed five BRANDON'S PLAN. beoms or stretchers, whieh are supported by the arched girders, and the upper suriaces of which are situated in the game horizontal plane, On theso stretchers are placed the sleepers which support the ie To the lower edges of the stretchers will be se- cured a ceiling of sheet tron, forming a graceful arch over the sidewalk and protecting the per- \ | | | | | nes per | ! | i | | | | Jongriuaiuaily, | as the legs of a tripod, and are re | | | | overvang the girders, | cautions is that in ¢ | the remotes | the Seventy-seventh s'rect bridge, if Sons occupying the sidewalk against sun and rain. | The upper edge of tne stretchers may also be coy. ered with skeot metal before the sleepers are put on, 60 as to form @ hollow space beneath the cars, for the purpose of deadening the noise oecasioned by the passing cars. Over the railroad it {s proposed to form an ar- | cade, so that the adjoining buildings can be ox- out toa line With the ouser edges of the sidewalks and thereby additional room be gainea and the value of the adjoining property be en- hanced. For this the inventor would erect addi- tional columns and oad ane the columns and pillars being connected as their uppor ends by arched beams, which support & series of longitudinal beams, forming a continuous arch, with a level suriace for the suppert ol the weight above The intersecting streets are to be crossed ata height of say sixteen feet over the vement on the longitudinal beams and which are supported by wire rope ical Contrivance that may The front of the raijroad will protect 8 oat re Talling, to be placed between t e pillars, Said railroad is proposed te be bulit in the least improved avenues or streets ieading up eave ert it interfere with ie pr t The to property owners a Rarposes, and thus room is gi rever necessary, or dee Toad is meant to be plac ings, or to ran througe passing over the fi either side of th < passenger would ‘aiting room, tickes from an age: Nie Ltn waiting rooms at more be occupied by vena services as tick a passenger wonid be tie passing cars would be constaniiy emptied anda refilled without either perceptible sir Of confusiod, Maving | Make Iv tmpos tu | | tracks, 3 arcaded over tne elevate: of such & proceeding wit t to property owners, and gain Of room jor building ain 0 the city also to dispore of such roo: for butiding purposes. The side become tue pleasantest in 1 d aiong the city, and these sidewalks would be the favored promenades tor the walking population, DESCRIYTION OF MEYERS & WIDMAYER’S DOURLE TRACK KLEVATBD RAILKOAD, The roadway is supported about lourteen feet above the surface of the street oy Wrougit iron columns. special care has been taken to propor- tion the several parts so that the smallest amount of material will give the required strength. Wa employ bat few pieces in our structure, and the respective parts, being formed alike, are mter- cuangeable, and in a possibie case of accident or breakage 1D aby Dart can insiantly without any delay be replaced. The several parts consist tn:--The foundation, wh Will start six to seven ieet velow the Street surface and be constructed of granite in the moss substantial manner. The cast iron bed-plate, with pockets to receive the columus, (0 which also are attached anchor rous firmly leaded into the foundation, Five col- Wrougit iron, Which possess the advia- Fr cast irom Of Occupying less space than me, xd four of Wuich are curved outwardy, nire One straight, aud supported by tour curved ribs, Which rest upon the columns aud are prevented from spreading at their bases by fat tension rods, tigitened up by turnouckies as well as by lorked braces, wWhiew at the same ume help t counteract the pressure upon the roau- bed, which tends to force tue columns inwardly, ‘The caps, which are placed upon the columns on rubber cushions, are provided with two lugs, be- tween which lougitudinal beams or giraers are placed and held firiuly lo position by two serew bolts passing through tue lugs and pressing upow Leth sides of the beams. The caps are also provided with grooves, into which roand tensiom bamds and large forked braces are pli aod tightened up by means or turnbuckles, ali of which bold the coluwns at thetr proper distances from each other, and keep tue whole structure firm and immoyaoly in plac Three wrougut lroh beams are employed of suMcient sirengin to span forty to sixty fees Openings, the centre beam being of extra strength, The beams are sull further supported. by tree trausverse giraers, into which the be: are firmly fastened, The girders rest upon three longitudinal cold rolled iron tension rods, which are drawn uy to any desired tension by surtabie turnbuckles, The sieepers or ties are of wood and norched in upon the beans to keep the beams from <pread~ ny = vhe top, aud are 80 held immovably in tLeir ces. The ateel rails are spiked to these sleep salety rail midway between the rails, ana ait to the sleepers, ts Six inches by eight inche Wood, and to both sides of the wooa is pressed lightly two Wueeis (!ront and rear of the car), and at the four corners of the cars are placed sour | wheels which, in case of breakage of an axle or Woeel, come I Contact With the track and thas bie ior the train or car to leave Ue track. This system has the advantage of lighuness, | cheapness, elegance of construction ana com: parative ease with which it cen be raised. The parts veing smali and interehangabie, require no great Skill or iabor to put them inte position, av the same time possessing, as has ogen proved by numerous experiments, ail the required strength vo run Hh shime trains at the rate of thirt our, whieh 18 all that can be asked fo! rapid transit in the city of New York. tlurthermore takes Up but ten feet of space at the street suriace, and if placed over one of the as will ultimately be the lows tne orber horse car to run along side of same, leaves tue whole of the present roadway of the streets or avenues unobstructed, and docs . In aby manner, interiere with the public traMo wuile constructing, This struerure can be Due very rapidly, aud wl &@ Cost ef adous $500,000 per mile, DESCRIPTION OF WENDT’S ELEVATED RAILWAY. Proposed Koule.—Krom City Hail .krough Bim te Canal, crossing through the ceatre of the next Diock into Crosby, tuence crossing two blocks into Lalayeite square, past Cuoper institute and up Phird avenue. Above Cooper Lustitute the road 1s placed In the cenire of the avenue; below. the columus are placed at the curostones. The design consists of 4 Wrought iron super- structure, cust rou being exciuded, as the viora- tion would soul render it crysvaliine and britt Four longituaimal girders, forty- to nity feet span, Of 4g 1 section, three feet deep at their cen- tre anu two feetas their ends, are strongly vraced every four jeet by I trons riveted (oe and extend ing from g@iraer to girder. The girders rest in | shoes, alloWiny EXpansion, ON & DOX-slaped cross girder oC ample sirengta. Tuis in turn is eup— po ted by two sets of three star-shaped inclined posts, bracing the roadway both transversely and Near (heir base the posts diverge ved vy three cast iron sockets of tue base plate, and secured by pourimg type metal into the iuterstice between Lhe sleeve and the post, The base piste is firmly bolted to a concrete foundation. The two outer long girders are placed directiy over the posts, aud the distance to tue next gird. ders will be eight jeet, ‘Lie T braces act ax vear- ers, SUpportipg au ORK stringer on which the rail z et ed. Gaoge, four feet eigat aud w ball neues, The Rolling Stock—Locomotives.—The heaviest not to exceed 15 tous weight; cylinder, 10X16; lour drivers of 33 inches; length over ail, 7 teel; extreme height, 10 feet; capacity, luv tons On @ grade of 100 jeet to the mile. fue en- will be flited with smoke coasumers, uirs brakes, &o, The Passenger Cars.—They rest on two low trucks tunning between the lougitudinal girders; each car seats lorty passenge ud be trucks turn on des bolved to tae ane OF cl Whiew act as Opposite to and # tue cars, which are 61 ivania Ruilroad standard), Iu iront aud bebind each truck the bottom o1 tae cars are fitted with a set of wide flanged car wieel iron roilers, aw shown in te drawing. ‘he result of these pre- se of derailment tre car drops only aiew ine and 13 arrested Ly tee girders, Which then act aa rails, with the rollers as wheels, white the overtanging sides remove possiviiity Ol tue car leaving the girders, Tu periect saiety is secured with a trifling expemse. The locomotives are similariy inches wide (Peunsy fitted. The woeels of the trucks are paper, to prevent uoise and jar. All cats ate fitted with air brakes. Stations.—It is proposed to have two main sta- tions—on: Oiry Uiali, the ovner at Hariem. re erat re “made up’ and started, and @ stock of cais and engin demand for passage, kept on hand to Oil any suaden Branch roads are to run to id Cemtral Depot, et River Bridge and vis Frankiort and Front streets te south terry, Beiow Filty-minth rect a station every tive blocks, or over iour to mule, will be required. Above tn. polat from three to four per mile will sufice. Automauc electric signa!s sre piaced at each station; no train Will be allowed to leave until the next station is Running at a speed of thirty miles an hour wire thirty #econds ruuning time between ; allowing jorty-Ove seconds for the stop- i give @iotal ef one and « quarter min- will, therefore, be absolutely safe to arta train every Oue and a half minuies, Dur- tng the day light locomotives aud @ train of two cars every three miputes will orobably carry all the travel. between tive and seven P. M. the road will be taxed to its utmost Limit, which, with 600 through passengers per pour. At the proposed the run to Harlem, including will not take over thirty-lve min- I would call special attention to tho necessity of running trains 0! ears to accommodate the @normots business# iD the evening hours, Any scheme /ouud Wanting in tMis essential point is impracticable and can never pay, [t must ve the in Of the Managers to distribute the traifc over several hours in the evening, and therefore no onrwats trains will be Me Pg fare will ba thin tions, to be bulls of irOR and glass exclusive, is estimated at $275,000 per mile. Should the Com- missioners decide against the feasibility of placing columas im the avenues @ lattice cross girder Jour leet deep at cen id two feet at curbs Will be thrown across the street. The structure ‘Will then cont ),000 per mile, amd will not ve nearly #8 compact ana shit, DESCRIPTION OF ALBXANDER BRANDON’S PLAN. ‘The plam proposed by Alexander Brandon is an e d placed on two heavy twelve-inca in the centre of the avennes or wide streets, occupying opiy outside of the columns and aifording fnrcilith tor three ‘The space between the colu: b surface @f th MN ao irom bed plate, con- ther in a most substantial man- eneaih the surface tae columns beng tt Withstand blows {rom The diagonal utile a ireignt two columns pl on, eth to ee. ora of columns supporting 1 girders are @ to receive AL telegraph wires, dispensipg wish the presouG telegrap! 8. apporting the ends of are m of roiled the columns istangs, & passenger woo travel te bridge would half the @ A ed the bridges—five blocks of # quarte: oe * loulations for the strength of cach span as « safe limit In view of iuture contingencle te per cent in excess of a load on resent Klevated Road im Sig Gilde G0ab Wil BE HBOUs $400,000 BOF Bey \ %