Page:United States Statutes at Large Volume 24.djvu/505

 472 FORTY-NINTH CONGRESS. Sess. 1I. CHS. 336, 337. 1887. Free nnvigeiivn which shall at any time substantially or materially obstruct the free l° l’° m“l¤*“i““d· navigation of said river, and if any bridge erected under such authority shall in the opinion of the Secretary of War obstruct such navigation, he is hereby authorized to cause such change or alteration of said bridge to be made, as will eftectually obviate such obstruction, and all such alterations shall be made and all such obstructions be removed at the Litigation. expense of said county of Davidson; and in case of any litigation arising from any obstruction or alleged obstruction to the free navigation ot' said river caused or alleged to be caused by said bridge, the case may be brought in the circuit courtof the United States of the middle dis- Existing laws trict of Tennessee: Procidedfurther, That nothing in this act shall be not enacted. so construed as to repeal or modify any of the provisions of law now existing in reference to the protection of the navigation of rivers or to exempt this bridge from the operations of the same. Secretary c1`W¤r Sec. 4. That any bridge authorized to be constructed under this act “;c‘*1’P'°"° Pl*“·“» shall be built and located under and subject to such regulations for the ° ‘ security of navigation of said river as the Secretary of War shall prescribe; and to secure that object the said county shall submitto the Secretary of War, for his examination and approval, a design and drawings of the bridge, and a map of the location, giving, for the space of one mile above and one mile below the proposed location, the topography of the banks of the river, the shore-lines at high and low water, the direction and strength of the currents at all stages, and the soundings, accurately showing the bed of the stream, the location of any other bridge or bridges, and shall furnish such other information as may be required for a full and satisfactory understanding of the subject; and until the said plan and location of the bridge are approved by the Secretary of War the bridge shall not be built; and should any change be made in the plan of said bridge during the progress of construction, such change shall be subject to the approval of the Secretary Promo. of War: And provided further, That unless the construction of said To be completed bridgeshall be commenced within one year from the date of the pasin threw years- sage of this act and completed within three years from the same date, all rights and privileges granted by this act shall be forfeited and cease. Right to amend, Sec. 5. That the right to alter, amend, or repeal this act is hereby etc., reserved. expressly reserved, and the right to require any changes in said strncture or its entire removal, at the expense of the owners thereof, when ever Congress shall decide that the public interest requires it, is also expressly reserved. Approved, March 3, 1887. Mn_ g;, 1337, CHAP.33'I.——An act to authorize the construction of bridges across the Great -——-——- Kanawha River below the Falls, and to prescribe the dimensions of the same. Be it enacted by the Senate and House of Representatives of the United Bm, as mmm States of America in Congress assembled, That any persons or corpora- G,,.,,,, g 1;,,,,,,,,],, tions having lawful authority to erect a bridge or bridges across the River, W. va. Great Kanawha River, in V\'est Virginia, may hereafter erect bridges across said river, for railroad or other uses, upon compliance with the provisions and requirements of this act. cmtmction, _ Sec. 2. That every bridge erected across the Great Kanawha River, in West Virginia, shall have its axis at right angles to the current at high towing stages, with its piers parallel to this current, and all of its spans shall be through spans. No riprap or other outside protection for insufficient foundations will be permitted around the channel-piers, and all coifer-dams or other temporary works must be removed by the owners of the bridge before it is opened to trailic. Every such bridge Channel-spun. shall have at least one channel-span, the center of which shall bein the middle of the channel usually run by descending coal-fleets in high towing stages, said channel-span to have a clear opening of four hundred feet at low-water line. Said channel-span shall be at least twenty-nine