Our firm was retained by SLCA to provide bidding and construction administration and inspection services for the downstream slope stabilization of the earthen dam which impounds Scenic Lake. While the lake was being lowered to facilitate those repairs, a partial collapse occurred on the upstream slope of the dam. We conducted hydrogeological and geotechnical investigations to determine the cause of the collapse, and designed remedial measures which were approved by NJDEP. We designed required improvements to the spillway structure on the dam, provided construction administration and inspection services for these additional projects mandated by NJDEP, and drafted an Operation & Maintenance Manual for SLCA. These services allowed the refilling of the lake during the summer of 2017 and the resumption of the SLCA community’s recreational uses of this resource.