Alpine dam is located on the southern end of Alpine Lake within the Innsbrook Estates development. The dam, constructed in 1999, is approximately 118 feet in height, and impounds the 236-acre lake. In 2008, the 36-inch diameter outflow pipe broke off in the upper portion of the downstream embankment, creating an approximate 40-foot-wide hole in the embankment. Another 150-foot-long scoured area was created in the lower portion of the downstream embankment.

SCI's services included recommendations for reconstruction of the failed area, review of plans and specifications and compaction testing during the reconstruction of the dam. A stability analysis along the downstream face was performed in order to provide the recommendations for reconstruction.

During excavation of the spillway for the dam, a sinkhole, 6 feet by 10 feet in plan dimension and 28 feet in depth, was encountered along the east side of the spillway. SCI observed the site and recommended that the feature be filled with on-site shot rock and camped with a minimum 2-foot-thick reinforced concrete cap. This option allowed groundwater migration, which was previously occurring, to continue along its current path.