20130777 Ver 1_Application_20130823 (2)

Avoidance /Minimization for R -3101
• All storm drainage will be diffused and designed for non - erosive velocities before
entering wetland areas to the maximum extent practicable.
• Throughout the project, grass -lined ditches with non - erosive velocities are designed to
convey the runoff to the existing drainage strictures that are being replaced.
• Stormwater has been discharged as far away from streams as practicable.
• 2:1 fill slopes are used throughout the project to minimize impacts to jurisdictional
resources.
• At Laurel Branch and Glade Creek crossings, existing concrete box culverts will be
replaced with bridges that will span the streams.
• Retaining wall was used to minimize impacts to roaring gap historic district.
• Sta. 27 +90 — 31 +00
• Sta. 36 +95 — 38 +25
• The use of expressway gutter to minimize impacts to roaring gap historic district.
o Sta. 32 +00 — Sta. 36 +13.
• Expressway gutter was also used in other locations along project to minimize impacts.
• Shifted the proposed edges of pavement along the project to minimize linear stream
impacts.
• Sta. 97 +50 — 101 +00
• Sta. 147 +00 — 164 +00
• Sta. 231 +00 — 240 +00
• Sta. 383 +00 — 407 +00
• Sta. 415 +00 — 428 +00
• Design ,Standards in ,Sensitive Watersheds will be implemented.
• NCDOT will abide by a Trout Moratorium from October 15th — April 15th on all
streams.