FORTY—SECOND CONGRESS. Sess. II. Ch. 213. 1872. 161 Sec. 2. That any bridge built under the provisions of this act may, at Bridge may be the option of the company building the same, be built either as a pivot b“m"“h ‘l’”' drawbridge, with a pivot or other form of draw, or with unbroken or ggazginokeii continuous spans: Provided, That if the said bridge shall be made with lewis], ununbroken and continuous spans, it shall not be of less elevation in any broken ¤1¤¤¤¤z case than fifty feet above high-water mark, as understood at the point of location, to the bottom chord of the bridge, nor shall the spans of said bridge be less than two hundred and fifty feet in length; and the piers of said bridge shall be parallel with the current of the river, and the main span shall be over the main channel of the river, and not less than three hundred feet in length: And provided also, That if any bridge built under jfss drawthis act shall be constructed as a pivot drawbridge, the same shall be con- b"dg"· structed with a draw over the main channel of the river at an accessible and navigable point, and with spans of not less than one hundred and sixty feet in length in the clear on each side of the central or pivot pier of the draw, and the next adjoining spans to the draw shall not be less than two hundred and fifty feet, if the proper location of the draw over the channel will admit spans of this width between it and the shore, and said spans shall not be less than thirty feet above low-water mark and act less than ten above extreme high-water mark, measuring to the bottom chord of the bridge; and the piers of said bridge shall be parallel with the current of the river where Piers. said bridge may be erected: And provided also, That said draw shall be Draw to be opened promptly, upon reasonable signal, for the passage of boats, and in °P°“d P"°‘“l’*lY· 110 case shall unnecessary delay occur in opening the said draw during or after the passage of trains. Sec. 3. That any bridge constructed under this act, aud according to its Bridge to be s limitations, shall be a lawful structure, and shall be known and recognized :$f“;::f;§;‘;e“ as a post—x·oute, upon which, also, no higher charge shall be made for the ghgrges ` 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 their transportation over the railroads or public highways leading to the said bridge ; and the United Postal tels- Etatcs shall have the right of way for postal-telegraph purposes across said €·"“Phrid e. Sic. 4. That all railway companies desiringto use the said bridge shall Railway combave and be entitled to equal rights and privileges in the passage of the £:§:5°r§;&:j’° same and in the use of the machinery and iixtures thereof and of all the approaches thereto, under and upon such terms and conditions as shall be Terms, &c. prescribed by the Secretary of War, upon hearing the allegations and proofs of the parties in case they shall not agree. Sec. 5. That the structure herein authorized shall be built and located Secretary or under and subject to such regulations for the security of navigation of said g“;l3ig;*&'Q’° river as the Secretary of War shall prescribe ; and to secure that object the logmng and said person or persons, company or corporation, shall submit to the Secre- building bridge. tary of Wa1‘, for his examination and approval, a design and drawings of Map, plans, the bridge and piers, and a map of the location, giving, for the space of at dmwmgsv &°· least 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 loca- Brgqgq nqf to tion of the bridge are approved by the Secretary of War, the bridge shall be b¤¤l2¤¤¤l. not be built; and if any change be made in the plan of construction of said §p‘;z’,_,;(f" am bridge during the progress of the work thereon, or before the completion Lhanges in of said bridge, such change shall be subject to the approval of the Secre- Plant °· tary of War; and the said structure shall be at all times so kept and managed as to offer reasonable and proper means for the passage of vessels through or under said structure; and the said structure shall be changed at the cost and expense of the owners thereof; from time to time, as Couvon. xvxx. Pun.-- 11
