42 FOBTY-EIGHTH CONGRESS. Sess. I. Ch. 81. 1884 ractical channel—way for navigation and confine the How of the water fo a permanent channel, and for the guiding of steamboats and rafts }°1°·“ *° b° ¤°*>· safely through the draw·spans at said point, shall submit to the Secremgfggg §° tary of War a plan of the bridge and of such accessory works, together gm,]-y ofywu-_ with a detailed map of the river at the proposed site of the bridge and for a distance of a mile above and below the site, together with all other information touching said bridge and river and accessory works as may be deemed requisite by the Secretary of War to determine whether the said bridge, when built, will conform to the prescribed , conditions of this act; that, as nearly as practicable, the said bridge shall be at right angles to and the piers parallel with the current of said river; and if it be found hereafter that the said bridge or accessory works materially interfere with the security and convenience of navigation of said river beyond what is necessary to carry into eifect the rights and privileges hereby granted, by reason of any defect or failure in the accessory works aforesaid to accomplish the purpose for which they are designed, it shall be the duty of the Secretary of War to require the necessary changes to be made therein in the interest of navi- Proviso. gation, at the expense of the owners: Provided, That as to any bridge built under this act, if the said bridge shall be made with unbroken and Spans. continuous spans, it shall not be of less elevation in any case than fifty feet above extreme high-water mark, as understood at the point of lo- · cation, to the bottom chord of the bridge, nor shall the spans of said s bridge be less than two hundred feet in length, and the main span shall be over the main channel of the river and not less than two hundred Provbo. feet in length: Aadprovidcd also, That if any bridge built under this P i v o t draw- act shall be constructed as adraw bridge, the same shall be constructed ¥•1'id8¤- as a pivotdraw bridge, with a draw over the main channel of the river $P¤¤¤· at an accessible and navigable point, and with spans not less than ten feet above extreme high-water mark at the point of location, and of not less length than stipulated below for the several bridges, namely: Over Lake Saint Croix the draw-spans shall not be. less than one hundred and sixty feet, and over the Chippewa River, the draw—span shall not be less than one hundred and forty feet on each side of the central or pivot pier cf' the draw, and the next adjoining span or spans shall not be less than me hundred and forty feet; over the Wisconsin River the draw·spans shall not be less than one hundred feet on each side of the central or pivot pier of the draw, and the next adjoining span or spans shall be not less than one hundred and twenty-five feet in length, unless otherwise expressly directed by the Secretary of War, and if so directed Proriao. shall be according to such direction: Provided also, That said draw shall be opened promptly upon reasonable signal for the passing of Lights md dg, boats; and said company or corporation shall maintain, at its own exnals. pense, from sunset till sunrise, such lights or other signals on said
bridge as the lighthouse board shall prescribe: Provided also, That all
P¤*_1i¤s¤¤ of railway companies desiring to use said bridge shall have and be en- °”h°’ ""'1’°“°’· titled to equal rights and privileges in the passage of the same, and in the use of the machinery and fixtures thereon and of all the approaches thereto, under and upon such terms and conditions as shall be proscribed by the Secretary of War, upon hearing the allegations and proofs of the parties, in case they shall not agree. Notice or up- Sec. 3. That the Secretary of War is hereby authorized and directed P;:": °*` Plus upon receiving any such plans and map and other information, and
- ,g"{0 upon being satisiied that a bridge built on such plan and with such
M ’ accessory works and at such locality will conform to the prescribed con-‘ · ditions of this act, to notify the company that he approves the same; and upon receiving such notification the said company may proceed to an erection of said bridge, conforming strictly to the approved plan and location; but until the Secretary of War approve the plan and location of said bridge and accessory works, and notify the company of the same, the bridge shall not be ; and should any change be made in the plan of the bridge or said accessory works, during the progress of the work
