Zimbabwe’s Semwa Dam project in Rushinga is gaining recognition as a showcase of local engineering and sustainable construction, as the nation prioritizes rural infrastructure to enhance food security and development. Currently in the dental concreting phase, the roller-compacted gravity dam integrates advanced hydraulic design with materials sourced entirely from the surrounding area.
According to ZINWA engineer Francis Dzenga, the dam will supply potable water to nearby villages and schools and can provide irrigation water even during construction. Blasted rock from the site yields about 1,200 acres of construction material weekly, while sand is harvested from the Madike River—a tributary of the Luya River—to support both building needs and river desalination.
Contractor Key Guangchow Chen of Makomo Holdings emphasized that all batching, reinforcement, and labor involve local resources and artisans, with steel drawn from Manhize. The structure’s design features mechanical stabilization, aggregate interlock, and seepage control to ensure durability. Upon completion, Semwa Dam will significantly expand water access for domestic, agricultural, and irrigation purposes, aligning with national goals for resilient rural growth.
According to ZINWA engineer Francis Dzenga, the dam will supply potable water to nearby villages and schools and can provide irrigation water even during construction. Blasted rock from the site yields about 1,200 acres of construction material weekly, while sand is harvested from the Madike River—a tributary of the Luya River—to support both building needs and river desalination.
Contractor Key Guangchow Chen of Makomo Holdings emphasized that all batching, reinforcement, and labor involve local resources and artisans, with steel drawn from Manhize. The structure’s design features mechanical stabilization, aggregate interlock, and seepage control to ensure durability. Upon completion, Semwa Dam will significantly expand water access for domestic, agricultural, and irrigation purposes, aligning with national goals for resilient rural growth.
