Page:United States Statutes at Large Volume 29.djvu/716

 686 FIFTY-FOURTH CONGRESS. Sess. II. Ch. 388. 1897. be built above the said Eads Bridge there shall be at least three chan- Spwr- nel spans of not less than nve hundred feet clear width, each measured at right angles to the current at any and all stages of water; and the lowest part of said span shall not be of less elevation in any case than fifty feet above the Saint Louis City directrix plus the slope of the river from the foot of Walnut street, in the city of Saint Louis, to the point where the bridge shall be built; and the piers of said bridge shall be parallel with the current of the river. rim. Sue. 4. That' the piers of all high-channel spans shall be built parallel with the current of the river at the stage of water which is most important for navigation; and riprapping or other protection for imperfect foundations which will materially lessen the waterway or which may injure navigation shall not be employed in the channel ways of the high spans, and piers which will produce cross currents or bars dangerous to navigation shall not be constructed; and if, after construction, any piers or protection walls are found to produce the abovementioned eifects the nuisance shall be abated or corrected by or at the expense of the persons owning said bridge; and the approaches to the channel spans mentioned in this Act shall provide sufficient waterway for the passage of floods. Lights ew- Sec. 5. That the persons owning, controlling, or operating the bridge authorized by this Act shall maintain, at their own expense, from sunset to sunrise, throughout the year, and during heavy fogs, such lights or other signals as the Li ght-House Board shall prescribe, and shall also K<>¤<1r<>¤¤¤ ¤<>¤i¤¤¤- each day during the season of navigation have posted in a conspicuous place the clear headroom under the channel span on that day, the figures expressing this height to be readily visible to the naked eye from any point in the channel of the river for a stretch of tour thousand feet, of which three thousand feet sh all be above and one thousand feet shall be below the channel span of the bridge. Umbatruntcd um- Sec. 6. That no bridge shall be erected or maintained under the "“°" authority of this Act which shall at any time substantially or materially obstruct the free 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 etfectually obviate such obstruction; and all such alterations shall be made and all such obstructions removed at the expense of the persons owning or controlling such Li¤z¤¤¤¤· bridge; and in case of any litigation arising from any obstruction or alleged obstruction to the free navigation of said river, caused or alleged to be caused by said bridge, the case shall be brought and tried in the circuit court of the United States for the southern district of Illinois. _l;°l$)*g:;f,{:.*_‘;2f” Sec. 7. That any bridge authorized to be constructed under this Act 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 the said companyor corporation shall submit to the Secretary of War, for his examination and approval, a design and drawings of the bridgiand a map of the location, giving, for a sufficient distance above and low the bridge, the topography of the banks of the river, the shore lines at high and low water, the direction and strength of the current at low, medium, and high water 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 changes 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. wfu*;_*{*;{£:°¤¤* •“" Sue. 8. That in case the construction of the bridge authorized in this Act shall not be commenced within one year and completed within live years from the date of its approval then this Act shall be null and void. m§;;·¤<·£<:;£““;Q Sno, 9. That as a principal reason for giving authority to build the pw1nig:¤um1a»¤. bridge herein contemplated is to secure reasonable rates and tolls to
 * l*°'•F·*•*¤B*“¤*· above the Saint Louis City directrix; and in case the said bridge shall