The definitions contained in this Section relate to excavation and grading
work only as outlined in this Chapter.
A. " Approval" shall mean a written engineering or geological opinion
concerning the progress and completion of the work.
B. "As graded" is the surface conditions exposed on completion of
C. "Bedrock" is in-place solid rock.
D. "Bench" is a relatively level step excavated into earth material on
which fill is to be placed.
E. "Borrow" is earth material acquired from an off-site location for
use in grading on a site.
F. "Civil engineer" shall mean a professional engineer registered in
the State to practice in the field of civil works.
G. "Civil engineering" shall mean the application of the knowledge of
the forces of nature, principles of mechanics, and the properties of materials
to the evaluation, design, and construction of civil works for the beneficial
uses of mankind.
H. "Clearing" is the cutting or removal of vegetation which results in
exposing any bare soil.
I. "Compaction" is the densification of a fill by mechanical
J. "Earth material" is any rock, natural soil, or fill and/or any
K. "Engineering geologist" shall mean a geologist experienced and
knowledgeable in engineering geology and registered as an engineering geologist
in the State of Oregon.
L. "Engineering geology" shall mean the application of geologic
knowledge and principles in the investigation and evaluation of naturally
occurring rock and soil for use in the design of civil works.
M. "Erosion" is the wearing away of the ground surface as a result of
the movement of wind, water, and/or ice.
N. "Excavation" is the mechanical removal of earth material.
O. "Fill" is a deposit of earth material placed by artificial
P. "Geological hazard" shall mean a potential or apparent risk to
persons or property because of geological or soil instability either existing at
the time of construction or which would result from construction.
Q. "Grade" shall mean the vertical location of the ground
R. "Existing grade" is the grade prior to grading.
S. "Rough grade" is the stage at which the grade approximately
conforms to the approved plan.
T. "Finish grade" is the final grade of the site which conforms to the
U. "Grading" is any excavating or filling or combination thereof.
V. "Key" is a designed compacted fill placed in a trench excavated in
earth material beneath the toe of a proposed fill slope.
W. "Site" is any lot or parcel of land or contiguous combination thereof,
under the same ownership, where grading is performed or permitted.
X. "Slope" is an inclined ground surface the inclination of which is
expressed as a ratio of horizontal distance to vertical distance.
Y. "Soil" is naturally occurring surficial deposits overlying
Z. "Soil (Geotechnical) engineer" shall mean a civil engineer
competent by education, training, and experience in the practice of soil
AA. "Soil (Geotechnical) engineering" shall mean the application of
the principles of soil mechanics in the investigation, evaluation, and design of
civil works involving the use of earth materials and the inspection and testing
of the construction thereof.
BB. "Terrace" is a relatively level step constructed in the face of a
graded slope surface for drainage and maintenance purposes.