|
LEGEND
|
Relative
measure of how difficult it
is to reach a specific survey
site
where 1 = easily accessible
and 5 = difficult to reach
by both foot and vehicle. |
ALS |
Above
Sea Level. All
elevations
are in feet above
sea
level. |
Bank Height |
Measured
from water line to top of
bank; measured in feet unless
otherwise indicated. |
Fish Barrier |
Anything in the stream that significantly interferes with upstream movement of fish. |
Infrastructure Threat |
An
infrastruture (i.e., public
works systems such as roads,
bridges, or any other man-made
structure) that is or will
be affected wihin 10 years
by continued erosion. |
Land Use |
Dominant land use closest to stream (within 50') when facing downstream; includes: crops, pasture, lawn, paved, shrubs & small trees, forest, multiflora rose. |
Length |
Length
of stream that appears to
be unstable and has an erosion
problem; measured in feet
unless otherwise indicated. |
Maryland
Stream
Survey
Codes
|
CA
Channel Obstructed
or Diverted by
Man
ES
Erosion
FB Fish Barrier
IB Inadequate Buffer
IC Instream Construction
PO Pipe Outflow
TD Trash Dumping
UC
Unusual Comment
(used for
incoming drainages) |
Pipe Outfalls |
Any pipes or small man-made channels discharging into the stream through the stream corridor. Examples: earth or concrete channel, or concrete, smooth metal, corrugated metal, or plastic pipe. |
Rating |
A
range of 1-5, where 1 = Severe
and 5 = Minor |
Stream Bank |
The side of the stream bank surveyed; always looking downstream. |
Tributary
Size |
Dry
Drain: Varying
sizes, flows only in wet weather
or storms.
Trickle: Barely
running, but constant tiny
flow, inches wide.
Stream: Running
freely
and
constant;
feet
across,
inches
deep.
Creek: Yards
across,
a
few
inches
to
feet
deep,
named
tributary
(i.e.,
Breakneck
Run,
Indian
Run). |
Water
Depth Width |
Actual
water
depth width,
as opposed
to creek
bank depth
and width;
measured
in
feet
unless
otherwise
indicated. |
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