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Planning Commission approves conditional use for East River Electric substation after drainage assurances
Summary
The commission recommended approval of a conditional‑use permit for a new East River Electric 115 kV substation, after applicant presentations and engineering testimony that detention ponds and site design will reduce post‑construction runoff.
The Lincoln County Planning Commission voted March 17 to recommend approval of a conditional‑use permit for a proposed East River Electric substation along South Dakota Highway 11, after hearing staff analysis, an engineer’s drainage study and public questions about drainage and setbacks.
Nut graf: Planning staff recommended approval with six conditions, and East River Electric representatives presented hydrology modeling and proposed detention ponds that they say would reduce post‑construction runoff compared with existing conditions. Neighbors asked for assurances the site wouldn’t worsen local culvert flooding; East River’s engineer said the planned detention reduces peak flows.
Applicant presentation: Jurey Wire of East River Electric said the 115 kV Lincoln County substation is needed to serve growth and to improve local reliability. Engineer Beau Frazier described a DGR hydrology study that compared existing discharge, a graded gravel pad scenario and the proposed layout with detention ponds, concluding the finished site would produce lower peak runoff.
Public concerns and responses: Adjacent landowners asked whether the pad could be moved farther from the road and whether watershed flows to local culverts would increase. Beau Frazier said detention design reduced modeled peak flows "tenfold" into the culvert and pledged to provide the DGR report to interested property owners.
Vote and conditions: The commission discussed county and city jurisdiction for drainage (Harrisburg handles some drainage review) and conditions including screening, driveway approval by the highway superintendent, and compliance with any state DOT requirements for Highway 11 access. By roll call the commission approved forwarding the conditional‑use recommendation; staff will prepare the conditions and forward the recommendation to the Board of Commissioners.
What’s next: Staff will prepare a final recommendation packet listing the six staff conditions and forward it to the Board of Commissioners. Engineering reports (DGR hydrology study) will be made available on request.
