Hydraulic dredging is and most certainly will remain a primary
means of maintaining and improving ship channels and for land
reclamation in near-shore water. The study of which this thesis
describes a part is intended to develop a method of predetermining the
immediate disposition of sand spoils from hydraulic dredging...
Dredged spoil plumes are monitored during nine hopper dredge
disposal events in 186 foot water depths offshore near Coos Bay,
Oregon. Position and solids volume concentration characteristics of
the plumes are established.
Computer simulations of the monitored events are executed using
the WES modified version of the Koh-Chang instantaneous disposal...
"An experimental gear permit was issued to the FV Lady Rosemary to use dredge gear to harvest clams off the Oregon coast. The main species of interest was razor clams, but other clams such as cockles and gapers were also explored. Primary objectives of the work were to (1) survey...
This paper will outline and discuss a number of specific
work assignments and fieldwork participation experienced during
the internship. Areas of exposure included sediment transport
analysis, zero-base budgeting, harbor line modification, channel
shoaling pattern analysis, dredging cost summaries, dredging
workshops and various fieldwork assignments along Oregon's Coast.
What should be done with dredge spoils? "This report discusses two clam beds that were inadvertently established by dredge spoils and suggests the type and magnitude of study I think is needed to determine the feasibility of creating new clam beds with dredge spoils." Includes maps of Yaquina Bay, and...
In 1949, the Army Corps of Engineers dredged Coos Bay. “Despite objection of local residents, commercial clam diggers, and the Fish Commission” the Corps dumped dredging spoils on a commercially important clam bed, and destroyed much of it. “This year, with an earlier start and more data, it is hoped...
This report concerns the disposal of dredging spoil in the Rogue River estuary in 1948. Since there were few shellfish resources existing in the estuary at the time, Oregon Fish Commission biologists had no objection to make to the disposal of the dredged materials.
For centuries humans have been searching for precious metals. The search for gold has greatly changed the landscape of the American West, beginning in the 1850s and continuing today. Various gold rushes around the country created mining colonies in remote areas, thereby connecting the frontier with the rest of America...
In 1960, the Army Corps of Engineers was planning to extend the jetties and to deepen the channel at Yaquina Bay. The Corps proposed to dump its dredging spoils in Sally's Bend, a highly productive part of the bay. In response to this request, in the summer of 1960, Fish...