Dredging - An Introduction

Dredging - An Introduction US Army Corps of Engineers Aerial of long bridge. Cargo ships on waterways, rivers & canals & in harbors. Views on water w/ boats, ships etc. Aerial showing channel. Stills of dredge shovels. Pipeline or hydraulic dredge. Man at controls. Shore pipe across water & w/ pumped mud sloshing out. 20:57:30 Taking water water sample & checking sediment. Park by lake with people sunbathing; wetland w/ birds. View of dredge along riverbank w/ hydraulic hose cutting riverbank. 20:58:22 Contract & CU clause on accident prevention. Men at work in hard hats & in training sessions. Inspector checking dredge & safety devices on board: fire extinguisher; man working on dredge teeth; emergency skip; ladder. Outdoors stairs. 21:00:40 Handwashing fountain in toilet. Turbidity screen on water. Welding mask. POV on large ship. Boats on waterways. Barge passes under bridge. Public Relations Film; Self-Promotion Film; US Government Film; 1966 (?); 1960s (?);