Page:United States Statutes at Large Volume 29.djvu/169

 FIFTY-FOURTH CONGRESS. Sess. I. Ch. 246. 1896. 139 navigation of said river beyond what is necessary to carry out effectually the rights and privileges hereby granted, and in order to secure that object, the said parties shall submit to the Secretary of War, for his examination and approval,a design of and drawings for 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 currents at medium high water, and such other information as may be required for a full understanding of the subject; and until the said plan and location of the bridge are approved by the Secretary of War, the construction of said bridge shall not be commenced. Sec. 3. That said bridge may be built either as a high bridge, with Constructionunbroken and continuous spans, or as a low bridge containing a sufiicient pivot drawspan. If built as a high bridge, the spans thereof shall High l>*i¤s¤· not be less than four hundred feet in the clear over the main channel of the river, and the lowest part of the superstructure of said bridge shall be at least fifty-five feet in the clear above the established highwater grade line, and the bridge shall be at right angles to and its piers parallel with the current of the river; and if built as a low bridge D,,wb,,dg_,_ with pivot drawspan, it shall have one drawspan, aifordin g 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 with a iixed span or spans 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 right angles to the current of the river: Provided also, That §;;;Q§;’j·dmw_ said drawspan shall be opened promptly by said parties or their suc- ” cessors and assigns, upon reasonable signal, for the passage of boats _ _ _ and rafts: And provided further, That the said parties or their succes- AMB *° ““""g“‘°"‘ sors 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 drawspan 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 bridge may be located: And provided further, That said parties or their successors and assigns shall maintain at their L*¥l‘”·°‘°· own expense, from sunset to sunrise, such lights or other signals on such bridge as the Light-House Board shall prescribe. Sec. 4. That the Secretary of War is hereby authorized and directed, N<>¢{¤¤¤¢*<·¤ of Mr upon receiving such plan and other information, and upon being satis- mm" fied that a bridge so built will conform to the requirements of this Act, to notify the said parties authorized to build the same that he approves of the same; and upon receiving such notification the said parties may proceed to erect said bridge, conforming strictly to the approved plan and location, and should any change be made in the plan of the bridge or accessory works, during the progress of the work thereon, such gimnge shall be subject likewise to the approval of the Secretary of ar. SHG, 5. That any bridge built under this Act and subject to its limi- mI&*;js§‘;;“{jf“°*“° tations shall be a lawful structure, and shall be recognized and known as a post route, upon whiclralso no higher charge shall be made for the transmission over the same of the mails, the troops, and the munitions of war of the United States, than the rate per mile paid for the transportation over the public highways leading to the said bridge, and it shall enjoy the rights and privileges of other post roads in the United States; and equal privileges in the use of said bridge shall be granted to all telegraph and telephone companies, and the United States shall have the right of way across said bridge and its approaches for postal P°“*”~‘ ‘°1°g”‘Phtelegraph purposes. _ Sec. 6. That all street railroad companies desiring the use of said Pgs by mm railbridge shall have and be entitled to equal rights and privileges r°° °°m*”"“°°`