Arigbabu Road Link — Ota–Sango, Ogun State
A 6.4 km dual-carriageway urban road link connecting Ota and Sango, delivered under a state-government infrastructure programme. Scope covered pavement construction, reinforced-concrete drainage, walkways, service ducts, and street lighting.
What the project set out to do
- Deliver a durable pavement suited to heavy urban traffic
- Solve chronic stormwater flooding along the alignment
- Improve pedestrian safety with walkways and lighting
What we were up against
The corridor carries heavy daily traffic. Works were phased with signed diversions to keep the route operational throughout construction.
Existing water, telecoms, and power utilities in the road reserve required coordinated relocation with each utility owner.
How we delivered
Cement-stabilised sub-base under the heavy-traffic lanes extended pavement life and reduced long-term maintenance.
Precast reinforced-concrete drain sections accelerated drainage construction and improved quality consistency.
Pavement was designed to the Nigerian Highway Manual with a 20-year design life for the anticipated traffic loading. Drainage was hydraulically sized for a 1-in-25-year storm return period.
Works were phased into 800 m sections, each with dedicated traffic-management crews. Materials testing was conducted daily on subgrade CBR, sub-base density, and asphalt Marshall stability.
All pavement layers were tested to specification with 100% record retention. Every reinforced-concrete drain pour was cube-tested to C25/30 minimum characteristic strength.
The completed road link has restored a critical Ogun State corridor, eliminated the previous flooding hotspots, and provides safer pedestrian access for the communities along the alignment.
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