Page:United States Statutes at Large Volume 29.djvu/226

 196 FIFTY-FOURTH CONGRESS. Sess. I. Ch. 311. 1896. ` the bridge site, and for the guiding of rafts, steamboats, and other I-is1¤¢¤.•¤¤· water cralt safely under said bridge: Provided further, That the said corporation, its successors and assigns, shall maintain on said bridge, from sun set to sunrise, such lights and other signals as the Light·House Board shall prescribe. ¤¤m*=¤;{n°*Xc¤*° Sec. 2. That said bridge shall not be built or commenced until the °"”°v°P °’location and plans have been approved by the Secretary of War as - hereinafter provided for ; and any change in the construction or any alteration of said bridge and accessory works, that may be directed at any time by Congress or the Secretary of War, shall be made at the cost and expense of the said corporation, its successors and assigns; that the said bridge shall be constructed without interference with the . security and convenience of navigation of said river, and in order to secure that object the said corporation, its successors and assigns, shall submit to the Secretary of War, for his examination and approval, a design and drawings of said bridge and accessory works and a map of the proposed location, giving for the space of one mile above and one mile below such proposed location the topography of the banks of the river, with shore lines and soundings, and direction of current at medium - high water, and such other information as may be required for a full remit mmm understanding of the subject; said map and drawings shall be referred “°" °"""· °“" to a board of officers of the Corps of Engineers, United States Army, for examination and report, which board shall personally examine the `te of the proposed bridge, and shall hold a public session at some convenient point to hear all objections thereto, of which public session · due notice shall be given by public advertisement; and if said board of engineers reports that the location selected or the plans presented are unfavorable to the interests of navigation, the Secretary of War is authorized, upon the recommendation of said board, to require such 4;;..,.,,.,,, changes in location or plans as may be deemed necessary to protect the interests of navigation; and said bridge shall not be constructed except in accordance with the plans recommended by said board and approved by the Secretary of War. Construction. Sec. 3. That said bridge shall be built either as a high or low bridge, mgn brings. " and if built as a high bridge it shall be with unbroken and continuous spans, at least three of the spans over the waterway to give a clear channel width of not less than four hundred feet at low-water surface, and clear headroom of not less than flfty-five feet above high-water surface; and the piers of said bridge shall be parallel with the current as mwmcgs. near as possib e at high stage of the river. If built with pivot drawspan, it shall have one drawspan, aifording two clear openings of not less than two hundred feet each, which drawspan shall be maintained over the main channel of the river at an accessible and navigable point, and if with ilxed span or spans, they shall be not less than three hundred feet in length in the clear, and the headroom under each span shall not be less than ten feet above the standard high-water grade line, and the piers of said bridge shall be parallel with and the bridge itself at p,,,,,;,,,,_ right angles with the river: Provided, also, That said drawspan shall <>:»<·¤¢¤•; drnw- be opened promptly by said corporation, its successors and assigns, upon reasonable signal for the passage of boats and rafts: Andprormamugcnmsi. rided further, That the said corporation, its successors and assigns, shall, at their own expense, build and maintain, under the direction and supervision of the Secretary of War, when so required, such wing dams, booms, and other necessary work to maintain the channel within the drawspau of said bridge, and shall, at their own expense, maintain a depth of water through said drawspan not less than now existing, as shown by the records of the War Department, at the point where said Lights, em. bridge may be located; And provided further, That said corporation, its successors and assigns, shall maintain, at their own expense, from sunset to sunrise, such lights or other signals on said bridge as the _ _ Light·House Board shall prescribe. ,,§,‘§,§{*f,$“,§Q,‘;§?g,j[' “*" Sec. 4. That the Secretary of Wair is hereby authorized and directed, upon receiving the report of the Board of Engineers, and upon being