“There is no real set limit for length of docks and piers,” said Michele Walker, spokeswoman for the N.C. Division of Coastal Management, which regulates development along the coast. “Generally, they cannot extend more than one-fourth the width of the water body, with some exceptions. For a pier to be longer than 200 feet (if authorized under a CAMA general permit) or 400 feet (for a major permit) the additional length must give access to deeper water at the rate of at least one foot of water depth per 100 feet of pier. The length is also limited by established pier-head lines.”
Here is the text of that rule, per the CAMA (Coastal Area Management Act) handbook:
Piers and docking facilities must not extend more than one-fourth the width of a natural water body or man-made canal or basin (see Figure 4.9), except in cases where there is a federally established pier-head line or if the pier is located between longer piers within 200 feet of your property. However, if you qualify for one of these exceptions, your pier cannot be longer than adjacent piers and cannot in any case extend more than one-third the width of the water body.
Here is a table explaining dock and pier rules: http://portal.ncdenr.org/web/cm/112
Date posted: August 7, 2014
User-contributed question by:
H Juanita Clemmons