Page:United States Statutes at Large Volume 31.djvu/794

 742 FIFTY-SIXTH CONGRESS. Sess. I1. cn. 181. 1901. charge of the river in seasons of flood; and any encroachment on the high-water cross sections by piers, solid embankments, or otherwise, which might result in unduly accelerating the high-water current at . the site o the bridge shall not be allowed. If, by reason of the location of a bridge in`or near a, city harbor, or from any other cause, the channel span next the shore shall·appear or become diiiicult of access at any season, because of the proximity of the river craft which are or may be moored at the bank, or from any other cause, then the person, compani, or corporation owning, controlling, or operating said bridge shal eit er increase the width of the openinglor span sufficiently, or shall, by purchase or otherwise, extinguish the right to obstruct the entrance to said span for a distance of from five hundred to one thousand feet above and below the bridge, as may appear necessary to the Secretary of War. 1 ` MM ¤> ¤¤vi8¤¤¤¤· Sac, 6. That any person, company, or coxéporation constructing any bridge under authority of this Act shall buil and maintain at all times, _ as accessory works to such bridge, such booms, piers, dikes, guard fences, and other devices as may e necessary to gnsure at all times a permanent channel for a sufficient distance above and below the bridge site, and for the guiding of rafts, steamboats, and other water' craft safely under said bridge; and if at any time after the construction of the bridge and its accessory works the aipproaches to the channel spans in the bridge built under this Act are ound to be dangerous or iiiicult of access by any important class of river traiiic the nuisance shall be abated or corrected in accordance with existing law. °fP;gc¤¤. ¤¤¤¤i¤¤¤¤¤ Sec. 7. That the said company shall submit in triplicate to the Sec- ‘ " ‘ retaxx of War, for his examination, upon a convenient scale, a design and rawings of the bridge, piers, approaches and accessory works, . and a map of the location, giving, for the space of at least two miles above and one mile below the proposed site, the topography of the banks of the river and the shore lines .at high and low water, and this map shall be accompanied by another drawn on a scale of one inch to two hundred feet, giving, for a space of one-half mile above the proposed site aud a quarter of a mile below, an accurate representation of the bottom of the river by contour lines two feet apart determined by accurate soundinlgs, and also showing over the who e width of this part of the 1'lVB1‘ the orce and direction of the currents at low water, at high water, and at least one intermediate stage, by triangulated observations on suitable iloats; and these maps shall a so show the location of other bridges, coal ti les, cribs, and all other structures projecting ~ into the river at bank—i£Hl stage, in the vicinity, and shall give suc m%°g{g *¤ °¤m*¤¤ other information as the Secretary of War may require for a full and ’satisfactory understanding of the subject. Said maps and drawings shall be referred to the board of officers of the Corp? of Engineers, United States Army, for examination and repprt, w ich board shall personally examine the site of the pro osed ridge and shall hold a public session in the city of St. Louis, ligissouri, to hear all objections thereto, of which public session due notice and invitation to be present — shall be given to all interested parties by advertising, and such parties I shall be allowed sufficient time for a full examination and consideration of the plans; and if said board of en `neers reports that the location selecte is unsuitable for a bridge, Ee bridge shall not be built at that location, or if said board reports that the plans presented are unfavorable to the interests of navigation at the site proposed the Secretarp of War shall be authorized, on recommendation of said board, to re use permission for the construction of a bridge at the proposed site until such changes in the design of the bridge or the location of its piers as may be deemed necessary shall have been made, and to require, in the same way, at the expense of the parties constructing such bridge, the construction of suc dikes and other auxiliary struc-