Page:United States Statutes at Large Volume 26.djvu/80

 26 FIFTY-FIRST CONGRESS. Sess. I. C11. 46. 1890. thereby, the length of the fixed spans or the number of draw;open· Adqinccntdnvmsub- ings may be reduced: Provided, also, That for any two adfjacent ‘“"“"""“`· draw·openings of two hundred feet each one draw openings three hundred feet may be substituted if in the opinion o the cretary of War the interests of navigation be not mgm thereby. rcwa w ope-as Sec. 3. That all draw-spans authorized by act shal Wr- °"“'* ated egy steani;1 or other reliabbel mechaniqal Ewer, and q mage 0v¤¤i¤z draws open promp y upon reasona e signal or e passage o, except when trains-arelpassing over said span orspans; but in no Ncumewnnnw d+ case shall unnecessaiéy elay occur m opsmng said draw after the §i.L'°" P""' °° passage of trains; an also, that in case e opening of a draw is de- - ‘ ayed by mason of the passing of a train after the signal has been given from a boat ready to pass through, the draw s all be opened or the passage of such boat before another train is allowed toipass l_;*¤h¤:¤¤¤¤¤¤¤¤1 g over the said span or spans; nor shall there be any unnecessary elay u-me P°°°°g° in the passage of trains over the bridge. , °°”“““°°‘°“· Sec. 4. That all piers shall be bu' t parallel with the current of i the 1'lVG1‘ at that stage of water which is most important for tion, and the bridge itself shall be_ built as nearly as maybe at rig t I !¤¤, ¤•'· angles thereto; and_ that np rapping or other (protection for imperfect foundations which will lessen the, require water-way shall not be mir-mitted; and also that piers which will produce cross—cu1•rents or dangerous tonavigation shall not be constructed; and if after construction any piers or accessory works are found to produce the above mentioned efects, or if any riprapping or other protection mmmut of m. prohibited by this section is found to exist, the nuisance shall be gw $°°¤**¤*¥ °* abated or corrected under the direction of the Secretary of War and ' at the  dthe company or persons owning, controlling, or opera g said ri ge. 1`·¤¤¤°°<*•¤¤·=¤¤¤°· Sec. 5. That the approaches to said bridge shall be so designed and constructed as not to interfere with the free discharge of said _ » river in seasons of flood; and any encroachment on the high-water cross-section gy piers, solid embankments, or otherwise w `ch will nguwaaemm Esult  upld uy anzclelaearpltingeghe high-water current at the site of e r1 a no ow. 4¤¤*¤¤¤**s•¤<>¤ Sec. 6¥°That any corporation, company, or persons owningilcom trolling, or operating the bridge built un er the authority of t 's act shall build and maintain at all times, as accessory works to such bridge, such booms, piers, dikes, guard fences, an similar devices as may be necessary to insure at a l times a permanent channel for · a sufficieut distance above and below the bridge site, and for the guidingl of rafts, steam-boats, and other water craft safely under or _uj':““$"‘ ""“‘ throng said bridge; and if at any time after the construction of the bridge and its accessory works the approaches to draw openingsé channel-spans, or raft passages in said bridge are found to damereous or difficult o access by any important class of river tra c. the Secretary of War may, upon the recommendation of the Chief of Engineers, United States Army, order the corporation, company, or persons owning, controlling, or operating said bridge to construct under his directions, an to maintain such additional sheer·booms, dikes, and other devices as will obviate the diiiiculty mentioned, which additional sheer-booms, dikes, and other devices shall be built and maintained at their own expense by said company or persons; and that said company or persons shall main- Us¤¤.¤w· tain at their own expense, from sunset to sunrise throughout the season of navigation, such lights and other signals on said bridge as mayfbe required by the Light·House Boar for the security of naviga ion. u•»¤¤¤.m. Sec. 7. That the bridge authorized to be constructed by this act shall be located and built under and subject to such regulations for the security of navigation of said riveras the Secretary of War shall