Blue Earth County is expecting to spend around a million dollars on repairs to the Rapidan Dam this fall. The repairs are intended to solve a long-term erosion problem as well as repair the damage caused by recent flooding. The largest repair is the strengthening and extension of the dam’s concrete “apron” – which prevents the water that flows over the dam from washing away the sandstone near the foot of the dam. The contract for these repairs was awarded around 18 months ago, but it took until now for water levels to subside enough to make the project economically feasible. The federal government is paying 80% of the repair costs. Blue Earth County has owned the Rapidan Dam since 1970.