Troup County, GA Environmental Rules: Stormwater Management (2026)

Section 6.2(1) requires a permit from the Board of Commissioners or its authorized agent before installing a driveway or driveway culvert pipe in a county road right-of-way; the application must show the owner, property description, existing driveways, and the proposed culvert's size and staked location, and carries a fee from the Community Development Department's schedule. Culvert specifications are numeric: a 15-inch pipe is the minimum, larger where drainage or grade requires it; residential and agricultural culverts run 20 to 30 feet and commercial or industrial culverts up to 40 feet, with riprapped ends where the road superintendent requires; culvert ends must sit at least 5 feet from the side property line, culverts must be at least 20 feet apart, and total culvert length is capped at 20 percent of lot frontage for single-family residential use and 40 percent for other uses, with one 20-foot culvert guaranteed if frontage is under 100 feet (Sec.

6.2(3)-(5)). Contractors and homebuilders may not let construction dirt, mud or debris accumulate in road ditches or drainage areas so as to stop or alter the flow of water, and must install erosion and sedimentation controls before starting construction (Sec. 6.2(2)). Obstructing a road drainage ditch or drainage easement with debris, trash or dirt is separately banned (Sec. 6.2(7)). Variances are available where compliance creates excessive hardship, decided by the Board of Commissioners (Sec. 6.2(9)), and a noncompliant driveway or culvert must be removed on notice or the county removes it and files a lien against the owner for the cost (Sec. 6.2(10)(b)).