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Article 11 Environmental Standards
11-22 Activities Allowed Within Buffers
Wake County Unified Development Code
11-4
11-21-7 Watercourses and Channels, 5 to 25 Acres
(A)
A water supply watershed buffer with a minimum width of 30 feet must be provided along
each side of a watercourse, channel, ditch, or similar physiographic feature with a drainage
area of at least 5 acres, but less than 25 acres, located inside the drainage area of the
drainageway.
(B)
Required buffers are to be measured perpendicular to the drainageway starting at the
natural drainage flow line of the watercourse.
(C)
Buildings must be setback at least 20 feet from the outer boundary of the required buffer
area.
11-22
Activities Allowed Within Buffers
11-22-1 General
(A)
The inner 50 feet (“Zone 1”)
of required 100-foot buffers along perennial streams and all
other water supply watershed buffers must consist of a vegetated area that is undisturbed
except for the activities expressly allowed to occur within water supply watershed buffers
pursuant to subsection 11-22-2.
(B)
The outer 50 feet (“Zone 2”) of required 100
-foot buffers along perennial streams must
consist of a stable vegetated area that is undisturbed except as necessary to accommodate
the activities expressly allowed to occur within water supply watershed buffers pursuant to
subsection 11-22-2. Grading and revegetation, as well as lawns and landscaping, are
allowed within Zone 2 of the perennial stream buffer.
(C)
Any allowed disturbance that occurs as a result of the activities expressly permitted in
subsection 11-22-2 must be designed, constructed, and maintained to:
(1)
minimize impervious or partially impervious surface coverage;