| Show CHICAGO DRAINAGE CANAL that chicago drainage canal is a big institution the channel Is twell ty eight miles to lockport into ilia des plaines river thence the waters voters of 0 lake michigan will be carried through the illinois into the mississippi at alton tho the proposition la Is that cubic feet of 0 water a minute will be discharged through the great canal the work mork has been steadily since september 3 1892 the first estimate of the cost was anil and it u was as to have been completed in april the time limit has been exceeded three years and the expenditure is as now calculated AN will III reach included lit in this Is for or seven railroad and seven highway bridges over the canal where it ft cuts through rock the canal la Is feet wide in ili the earth sections it slopes from to feet at the bottom to from to feet at the top the minimum depth of 0 the water Is to be eighteen feet the dream is for the government to open a deepwater deep water canal to Henn hennegin hennepin epin on the illinois sixty miles southeast ot of lockport so 00 is as to make a big shipway ship way inay from the suit gulf to the lakes at lockport the canal de bouches into an artificial basin COO feet wide and runs runa south and cast between massive stone vails nalls put fiut provided on the west w ith a gigantic sluice gate moved up and down by hydraulic action through which the water la Is allowed to escape this Is the famous bear trap dam in the excavations some tie new v gigantic forces were employed monster cantilever cranis cranes traveling on tracks parallel w with till the canal and fitted with stearn steam conveyors to the extremities of 0 their long lone arms scooped out RD MO cubic yards of 0 dirt an hour steam bocam channeling machines cut through the rock 8 sections c if n compressed air drove tb the ie dri drills Z 17 hydraulic dredges scraped the old river bed the above facts are compiled front from an article by thaddeus horton in colliers weekly |
