Savannah District Drainage Master Plan – Kumasi
Scope of Work
A critical infrastructure project aimed at ending seasonal flooding in a high-density urban catchment. The scope includes Hydrological Analysis and the construction of 4km of Major Drainage Channels, including lined trapezoidal canals and reinforced concrete box culverts. A key feature of this project is the integration of Sustainable Urban Drainage Systems (SUDS), including bio-retention swales designed to filter runoff before it reaches the main outfalls.
Key Challenges & Solutions
- Challenge: Working within active, densely populated communities where existing informal utilities were poorly documented.
- Solution: We employed Ground Penetrating Radar (GPR) to map underground assets before excavation and maintained a dedicated community liaison team to manage local traffic and safety.
Technologies/Methodologies Used
- HEC-RAS Modeling: For hydraulic simulation of peak flood events.
- Pre-cast Concrete Segments: To speed up construction and minimize open-trench time in residential areas.
"For the first time in a decade, our streets remained dry during the peak of the rainy season. This infrastructure has truly protected our community's assets."
District Engineer.
Client Testimonial
Project Information
Clients
Municipal Assembly / Urban Roads Department
Category
Commercial
Project Duration
Sept 2017 – Sept 2018
Project Value
GHS 28,000,000
