Based on a pilot study completed near Heceta
Beach, Oregon, guidelines have been proposed for
the development of Oregon coastal sand areas.
The guidelines, in the form of performance standards
are designed with respect to the variability of
coastal sand areas. Landscape units and vegetation
associations were grouped to reflect...
The surface mining of coal has accelerated in
northwest Colorado to the point where public pressure
plus impending state and federal regulations dictate the
need for comprehensive reclamation plans. A large coal
company operating in Moffat County has solicited recommendations
concerning soils, hydrogeology, geomorphology,
aesthetics, wildlife, vegetation, microclimatology, and
legal...
A log step develops when large woody debris extends across the active
channel, creating a change in the water surface elevation as the stream
spills over the log step. By forming a series of vertical falls, log
steps reduce the amount of potential energy available for conversion to
kinetic energy...
In attempting to provide modern water and
sewerage services to the non-indigenous inhabitants of
Canadian Arctic communities, engineering modifications are
necessary owing to the presence of a continuous permafrost
zone and a severe climate. Modifications are constraints
on communities in that the costs of providing water and
sewerage services are...
A study conducted along the Lincoln County, Oregon coast
delineated the exact location of 153 landslides. The landslides were
found through the interpretation of aerial photographs. Each landslide
was verified in the field and its class (ancient, historic, recent),
type (slump, debris slide or flow, planar slide), and status (stable,...
Portland, Oregon Is in the northern end of the Willamette River Basin and
Valley. The Willamette River caries the runoff discharge from approximately 12,000 square
miles of basin area, and flows northward where it bisects the Portland metropolitan area
and enters the confluence with the Columbia River. However, high discharge...
The wetlands are distinguished from other lands of the Mid-Willamette Valley by excessive soil moisture. The wetlands, as defined for this study, consist of 20 soil series (in 22 soil mapping units) which are classified by the Soil Conservation Service as having excessive wetness as the major factor limiting their...
The North Unit irrigation District of Central Oregon,
a water project developed under the guidelines of the
Bureau of Reclamation, is characterized by limited water
and the need for efficient utilization and control of the
irrigation system. To manage the limited water resource,
irrigators need a timely and economical method...
The Chelan Valley is one of several valleys located on the eastern slope of the Cascade Mountains contributing to the leadership of Washington in apple production. Since the nature of the activity in the Chelan Valley is typical of all these producing areas,it was selected as a case study of...
The siting of a new industrial plant generally results
from the favorable match of the needs of an industrial
firm arid the assets of a community. Citizens of
Oregon have taken a very active role in planning and decision
making at the local level due to legislation in
the past...