Case Study - Freetown Ring Roads

Overview

The project involves the construction of a 6.2-kilometer dual carriageway paved with asphalt concrete, along with the development of Hill Cot Road on two levels to accommodate terrain variation. A 26-meter-long flyover bridge will be newly constructed, while the existing 15-meter Hill Cot Bridge will be reconstructed to meet modern standards.

To improve pedestrian accessibility and safety, a 36-meter-long footbridge will be built along Jomo Kenyatta Road. In terms of drainage infrastructure, a major double box culvert—36 meters wide and 10 meters long—will be constructed at George Brook, along with additional single and double box and pipe culverts throughout the carriageway.

The project also includes the construction of various sizes of surface drains and chambers for efficient stormwater management. Utility services will be supported through the installation of ducts for water, electricity, and telephone lines. Additionally, two solar-powered traffic light junctions will be implemented on King Harman Road to enhance traffic regulation.

What we did