FLOOD07193

• County: Fremont
• Community: Canon City
• Basin: Arkansas
• Title: Floodplain Management Study, Four-Mile Mud Gulch Final Report
• Date: 6/1/1996
• Prepared For: Fremont County
• Prepared By: DNR
• Floodplain - Doc Type: Community File

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GLOSSARY OF TERMS

CHANNEL - A natural or artificial water course of perceptible extent with
definite banks to confine and conduct continuously or periodically
flowing water. Channel flow is that water which is flowing within
the limits of the defined channel.

FLOOD - Water from river, stream, water course, lake or other body of
standing water, that temporarily overflows the boundaries within
which it is ordinarily confined.

FLOOD CREST - The maximum stage or elevation reached by the waters of a
flood at a given location.

FLOOD FREQUENCY - A means of expressing the probability of flood
occurrences as determined from statistical analysis of representative
stream flow or rainfall and runoff records, The frequency of a
particular stage or discharge is usually expressed as occurring once
in a specified number of years. The 10-year, 25-year, 50-year, 100-
year, and 500-year frequency floods have an average frequency of
occurrence in the order of once in the number of years indicated.

FLOOD HAZARD AREAS - Areas susceptible to flood damage.

FLOOD PEAK - The highest stage or discharge attained during a flood
event; also referred to as peak stage or peak discharge,

FLOOD PLAIN - The relatively flat or lowland area adjoining a river,
stream, watercourse, lake, or other body of water which has been or
may be covered temporarily by flood water. For administrative
purposes the flood plain may be defined as the area that would be
inundated by the 10Q-year flood.

LEFT or RIGHT STREAM BANK - The left or right bank of the stream looking
downstream,

PERCHED CHANNEL FLOW - A condition where the flow elevation in the outer
portions of the flood plain is higher than the flow elevation in the
main channel. This condition occurs when a secondary channel
receives inflow from some location upstream and maintains a flatter
slope then the main channel.

REACH - A hydraulic engineering term used to describe longitudinal
segments of a stream or river,

RUNOFF - That part of precipitation, as well as any other flow
contributions, which appears in surface streams of either perennial
or intermittent form,

STREAM - Any natural channel or depression through which water flows
whether continuously, or intermittently, including modification of
the natural channel or depression.

STRUCTURE - Anything constructed or erected, the use of which requires a
more or less permanent location on or in the ground. Includes but is
not limited to bridges, buildings, canals, dams, ditches, diversions,
irrigation systems, pumps, pipelines, railroads, roads, sewage

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