South Dakota state law: coastal development (not applicable)

The federal Coastal Zone Management Act (CZMA, 16 U.S.C. § 1451 et seq.) applies only to the 30 U.S. coastal states and 5 territories bordering an ocean or the Great Lakes. South Dakota is not eligible to participate. There is no SDCL chapter implementing CZMA, no state Coastal Commission, and no shoreline-management act analogous to Washington's Shoreline Management Act (RCW 90.58) or California's Coastal Act. The closest functional equivalents in South Dakota are: 1. MISSOURI RIVER MANAGEMENT. The Missouri River through SD is impounded as Lake Oahe, Lake Sharpe, Lake Francis Case, and Lewis & Clark Lake — operated by the U.S. Army Corps of Engineers under the Pick-Sloan Plan and the Flood Control Act of 1944. Shoreline development on Corps-managed reservoirs requires Corps approval under 36 CFR Part 327 and any required Section 404 / Section 10 (Rivers and Harbors Act) permits. SD does not have an overriding state shoreline ordinance. 2. SECTION 404 (WETLANDS) PERMITTING. The U.S. Army Corps of Engineers regulates dredge-and-fill activities in waters of the United States under Clean Water Act § 404 (33 U.S.C. § 1344). SD DANR performs the related § 401 water-quality certification under SDCL 34A-2. 3. INLAND LAKE/RIVER SHORELINE ZONING. SD cities and counties may regulate shoreline setbacks, dock construction, and vegetative buffers along inland lakes and rivers under municipal zoning (SDCL Chapter 11-4) and county zoning (SDCL Chapter 11-2). Lakeshore communities (Lake Madison, Lake Poinsett, Lake Kampeska, the Black Hills lakes) may adopt local shoreline-overlay zoning, but there is no state floor. 4. NATIVE PRAIRIE AND WETLAND PROTECTION. Wetland regulation overlaps with the U.S. Department of Agriculture 'swampbuster' provisions under the Food Security Act of 1985 for farms participating in federal commodity programs, plus § 404 federal jurisdiction. SD has no state wetland-protection statute. If a 'coastal development' question is presented in a South Dakota context, the proper analysis is shoreline management on the Missouri River reservoirs (federal Corps jurisdiction) or inland lake/river shoreline zoning (local ordinance). For genuine coastal/ocean projects, contact the relevant coastal state's coastal commission.

Not applicable in South Dakota — no state coastal-development statute exists. For shoreline activities on Missouri River reservoirs without Corps approval, federal civil penalties under 36 CFR Part 327 and Clean Water Act § 404(s) apply (up to $59,973 per day per violation as adjusted for inflation). Unpermitted dredge-and-fill in waters of the U.S. is enforceable by EPA and the Corps with administrative penalties and injunctive relief. Local shoreline-zoning violations on inland lakes are enforceable as zoning code violations under the operative city/county ordinance.