Morrisville Unified Development Ordinance - June 2017

Article 6: Riparian Buffers Section 6.8. Uses and Activities Permitted in Riparian Buffers 6.6.3. Riparian Buffer Variance Review Standards

Table 6.8: Uses and Activities Permitted in Riparian Buffers

Allowable with Mitigation [3]

Use or Activity

Exempt [1] Allowable [2]

In-stream temporary erosion and sediment control measures for work within a stream channel that is authorized under Sections 401 and 404 of the Federal Water Pollution Control Act [9]. In-stream temporary erosion and sediment control measures for work within a stream channel [9]. In-stream temporary erosion and sediment control measures for work within a stream channel [8]. Utility line crossings of streams and other surface waters subject to this article: Above-ground electric line crossings that are perpendicular to the stream and disturb no more than 150 linear feet of riparian buffer [4][5][6] Above-ground electric line crossings that are perpendicular to the stream and disturb more than 150 linear feet of riparian buffer [4][5][6] Above-ground electric line crossings that are not perpendicular to the stream and impact Zone Two [4][6][9] Above-ground electric line crossings that are not perpendicular to the stream and impact Zone One [4][5][6][9] Above-ground electric line crossings that are not perpendicular to the stream and impact Zone Two [4][6][8] Above-ground electric line crossings that are not perpendicular to the stream and impact Zone One [4][5][6][8] Underground electric line crossings that are perpendicular to the stream and disturb no more than 40 linear feet of riparian buffer [4][6][7] Underground electric line crossings that are perpendicular to the stream and disturb more than 40 linear feet of riparian buffer [4][6][7] Underground electric line crossings that are not perpendicular to the stream and impact Zone Two [4][6] Underground electric line crossings that are not perpendicular to the stream and impact Zone One [4][6][7] Non-electric utility line crossings that are perpendicular to the stream and disturb no more than 40 linear feet of riparian buffer and have a maintenance corridor no more than 10 feet wide [4][6] Non-electric utility line crossings that are perpendicular to the stream and disturb no more than 40 linear feet of riparian buffer and have a maintenance corridor more than 10 feet wide [4][6][9] Non-electric utility line crossings that are perpendicular to the stream and disturb more than 40 linear feet but no more than 150 linear feet of riparian buffer and have a maintenance corridor no more than 10 feet wide [4][6] Non-electric utility line crossings that are perpendicular to the stream and disturb more than 40 linear feet but no more than 150 linear feet of riparian buffer and have a maintenance corridor more than 10 feet wide [4][6][9] Non-electric utility line crossings that are perpendicular to the stream and disturb more than 40 linear feet but no more than 150 linear feet of riparian buffer and have a maintenance corridor more than 10 feet wide [4][6][8] Non-electric utility line crossings that are perpendicular to the stream and disturb more than 150 linear feet of riparian buffer Non-electric utility line crossings that are not perpendicular to the stream and impact Zone Two [4][6][7]

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

June 23, 2017

Morrisville, NC

Page 6-16

Unified Development Ordinance