As a result of the independent group of experts’ recommendations, underseepage, dam crest permeability and concrete deterioration are being fixed through a series of repairs and modifications to the dams. These projects include:
- The installation of relief wells and toe berms at the downstream base of the dams to address underseepage
- Grouting of Lockington Dam bedrock foundation to address underseepage
- The construction of impermeable cut-off walls at the top of the dams
to address dam crest permeability
- The replacement of deteriorating concrete
The Dam Safety Initiative is MCD’s largest investment in the flood protection system since the original construction in 1918-1922.