Chicago : Engineering and Contracting Pub. Co. · leaf 156
ny proposes to devote its canalsand ditches entirely to the purpose of efficient-ly draining its lands and will not jeopardizethis primary object by allowing its canals tobe used for navigation purposes, as is sofrequently done in Florida. After drainagehas been successfully accomplished the… … Fig. 3—Lidgerwood-Crawford Excavators Working on Outlet Canal. the slopes of the canal at frequent intervals. For the construction of the main canalwhere the same is in muck a dredge has beenconstructed by the American Steel Dredge
Buildings
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
