. Memorial, presentato dai fiduciari del Distretto Sanitario di Chicago per il Congresso degli Stati Uniti : profondo per via navigabile dal Lago Michigan al fiume Mississippi presso San Louis. g e la docking sono state andando su simultaneouslyat molti punti. Allo stesso tempo i piani sono stati fatti per rimuovere tutti ilcentro-pier ponti nel fiume e sostituire i ponti a bilico per loro. Someof questi ponti sono già finito, altri nel processo di costruzione e theremainder saranno assunti per quanto più rapidamente è jiossible senza interferire tooseriously con il traffico sulle strade. La stima

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. Memorial, presented by the Trustees of the Sanitary District of Chicago to the Congress of the United States : deep waterway from Lake Michigan to the Mississippi River at St. Louis. g and docking have been going on simultaneouslyat many points. At the same time plans have been made to remove all of thecenter-pier bridges in the river, and substitute bascule bridges for them. Someof these bridges are already finished, others in process of construction, and theremainder will be contracted for as rapidly as is jiossible without interfering tooseriously with traffic on the streets. The estimate for the total cost of this workis $9, 000, 000. At this writing, June, 1904, about forty-two per cent of it has beenfinished. The completion of this work is dependent upon the rapidity with whichthe courts will handle the necessary condemnation suits. With all of the prop-erty in the possession of the District, the construction work could be completedin two years. With the completion of the work under these plans, the ChicagoEiver will be a perfect navigable stream, of a uniform depth of twenty-six feet, saving only for the presence of three street railway tunnels, the removal of. CONTROLLING WORKS AT LOCKPORT, ILLINOIS Memorial to the Congress of the United States. 21 which is certain to come in the near future, but must await the action of eitherthe City of Chicago or the Federal Government. The Sanitary and Sliip Canal proper begins at the west fork of the southbranch of the Chicago River at Robey Street, and extends 28.05 miles to Lockport.The depth of water in it varies with the flow, but the construction is such thatunder no conditions will the minimum be less than twenty-two feet. The presentdepth is between twenty-four and twenty-five feet. The channel is cut part ofthe way through glacial drift and part of the way through rock. From Robey Street to Summit, a distance of nearly eight miles, the channelis 110 feet wide at the bottom, and 198 feet wide at the water line. Th

Parole chiave associate all'immagine

• bookcentury1900
• bookdecade1900
• booksubjectcanals
• bookyear1904