70 ‘ FIFTY-FIRST CONGRESS. Sess. I. Ch. 163. 1890. rmt mw. - Sec. 2. That any brid e built under the provisions of this act shall be constructed as a pivot draw-bridge with a draw over the main chan- Spms nel of the river at an accessible and navigable point, and with spans givingha clear width of waterway of not less than two hundred feet ‘ on eac side of the central or ivot pier of the draw, and the span or warm;. spans adjoining the draw shall)give such clear width of water—way as in the opinion of the Secretary of War are required by the interests Height- of navigation, and said spans shall give a clear headroom of not less Piers- than ten feet above extreme high watermark; and the piers of said bridge shall be dparallel with the current of the river where said bridge ammo. shal be erecte : And provided also, That said draw shall be operated “c0v¤¤i¤s ¤f MW- by steam or other reliable mechanical power and shall be opened ' promptly uponreasonable signal for the passage of boats, except when trains are passing over the raw; but in no case shall unnecessary de- ‘ lcay_ occur in opening the said draw during or after the passage of rains. · uwrunsuuezummi Sec. 3. That any bridge constructed under this act and according
- ’°°°"'°“‘°· to its limitations shall be a lawful structure and shall be known as
· a post—route, and the same is hereby declared to be a post-route, upon w ich also 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, or for passen ers or freight passing over said bridge, than the rate per m e paid for their trans ortation over the railroads and alpublic highways leading to said lgridge; and the United rosmwiesrnvin. States sh have the right of way for postal telegraph purposes across said bridge. UM bv ¤¤¤¤‘ •=¤¤¤· Smc,4. That all railway compwies desiring to use said bridge ° shall have and be entitled to equal rights and privile es in the passage of the same, and in the use of the fixtures and machinery thereof, MW and of all the approaches thereto, under and upon such terms and conditions as shall be prescribed by the Secretary of War upon hearing the allegations an proofs of the parties in case they shall not agree.
3*w Sec. 5. That the structure herein authorized shall be built and
` located under and subject to such regulations for the security of the · navigation of said river as the Secretary of War shall prescribe; and to secure that object the said company or corporation shall submit to the Secretary of War for examination and approval a design and drawing 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 current at all stages, and the soundings, accuratel showing the bed of the stream, the location of any other bridge or bridges, and shall furnish such other information as shall be required for a full and satisfactory understanding of the sub`ect; and until the said plan and location of the brid e are decided Jby the Secretary of War to be such as will not materisdly affect the interests of navigation the bridge shall not be commenced or built. And should any change be made in the plan of said bridge during the progress of construction such changes shall be subject to the approval of the Secretary of War; and the AMS ¤<>¤•'i8¤¤¤¤- said bridge shall be constructed with such aids to the passage of said bridge in the form of booms, dikes, piers or other suitable and proper structures for confining the How of water to a permanent channel for a distance of not less than one mile above the bridge and for a ro er distance below, and for the guiding of rafts, steamboats, andpotlger water-crafts safely through the draw and raft spans as the Secretary of War shall prescribe and order to be constructed and maintained at the expense of the company owning said bridge; and the said structure shall be at all times so ‘ept an managed as to offer reasonable and proper means for the passage of vessels through or under said structure; and for the safety of vessels passing
