Fluorescent dye was used to assess summer low flow
hydraulic retention and transient storage (dead zone)
associated with fish habitat structures at Camp Creek,
Drift Creek, and the East Fork of Lobster Creek within the
central Coast Range of Oregon. Utilizing channel units to
stratify stream reaches, the effect of...
The United States' declaration of war on Germany on April 6, 1917 imparted some urgency to harbor improvements. This document describes proposed projects at Yaquina Bay: to extend the south jetty, repair and extend the north jetty, construct a spur jetty and dredge the channel. The justification for these improvements...
An earlier request for dredging a channel in the Yaquina River from Yaquina to Toledo having been rejected by Congress, the citizens of the area formed a port district and raised funds to support dredging. In response to this effort, the Army Corps of Engineers recommended the project be undertaken,...
Described the Yaquina Bay and River from Yaquina to Elk City, the communities and industries there, and considered proposed channel deepening. "The General Government expended nearly $700,000 in providing a suitable entrance to Yaquina Harbor, but no advantage was taken of this improvement. On the contrary the commerce, which was...
This study investigates riparian cover change between 1939 and 1996 utilizing aerial
photography, bank conditions and stream gauge data. Three sites under 1.0 km2, along a 10-
km reach north of Harrisburg, Oregon, were evaluated. The cover classification scheme
included 18 classes composed of 3 canopy densities and 8 structural...
This study investigates patterns of physical structure organization in stream
networks. In particular, it seeks to describe patterns of wood, boulders, pools and slope
that are evident in stream channels and to determine whether patterns of these elements
are influenced by network-level controls. The four in-stream parameters were
combined to...
Dionysius said that history is philosophy learned from examples. As one of the original four counties of the Territory of Oregon, the Tualatin River Basin is rich in history. While still a prime agricultural region, the Tualatin Valley is one of the state's fastest developing areas. The slow accumulation of...