Josa General Contractors successfully completed the Proposed Box Culvert along Signal Kitui–Kateyethoka Road in Kitui County. The project involved bush clearing, concrete works, scour checks, and gravel patching to improve road infrastructure and drainage systems. The works were completed on 16th March 2018 at a contract sum of KES. 15,879,358.85, under the supervision of the Principal Engineer, Ministry of Lands, Infrastructure, and Urban Development, for the County Government of Kitui.

