(605 ILCS 115/12) (from Ch. 137, par. 12)

Sec. 12. Every person or corporation owning or operating a bridge over any navigable water course shall keep the channel thereof, above and below the bridge, free and clear from all deposits in any wise prejudicial to the navigation thereof, which may be formed or occasioned by the erection of such bridge.

(Source: R.S. 1874, p. 1059.)