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<br />82 <br /> <br /> <br />0::1868 <br />. <br /> <br />extends from a point 900 feet west of the Animas Street bridge <br /> <br />eastward, following the present channel for a distance of 4,ll.5 <br /> <br />feet, to a point l,lOO feet east of the Linden Street bridge. <br /> <br />Open channel with dry-rook paving is provided for 6,000 feet up- <br /> <br />stream and 2,000 feet downstream from this section. It is necessary <br /> <br />to rebuild the Commercial Street bridge since the waterway avail- <br /> <br />able with this low twin-arch structure is inadequate. Other <br /> <br />bridges may remain except that foundations must be securely anchored. <br /> <br />Locating the channel from the west city limits along the Atchison, <br /> <br />Topeka, & Santa Fe tracks and continuing through to Linden Street <br /> <br />is more desirable but requires muoh relocation of railroad and <br /> <br />. <br /> <br />street bridges. By terminating the concrete-lined section at <br /> <br />the Chestnut Street bridge and providing a rock-paved channel <br /> <br />below, it is likely this plan could be accomplished at about the <br /> <br />cost estimated for the other plan, except for costs of rights <br /> <br />of way and removing buildings. <br /> <br />For a channel 100 feet wide, with a oapacity of 30,000 <br /> <br />second-feet, which is equal to the peak flow of the 192.5 flood, <br /> <br />concrete-lined for the same reach as for the larger capacity, and <br /> <br />with 2,000 feet of dry-rook-paved channel downstream and a con- <br /> <br />fining rock-paved embankment upstream on the north side of the <br /> <br />river to the west city limits, the estimated cost is $8.50,000. <br /> <br />The area between Grove Street and Stonewall Avenue (extended), <br /> <br />now occupied by the river channel, can be reclaimed by backfill <br /> <br />. <br /> <br />with excavated material ~~th either of these improvements. Here <br /> <br />also it is considered that the best protection from all floods <br /> <br />can be better accomplished by reservoir construction. <br />