NIGERIA
Fleet House, 105 Olu Obasanjo Road,
Port Harcourt, Rivers State.
Construction of Nwaniba Road, Uyo, Akwa Ibom State, Nigeria
Location
NIGERIA
Date
2008
Markets
Roads & Bridges
Scope of work
Road Length: Approximately 15 km
Road Type: Dual carriageway with drainage, sidewalks, and street lighting.
Materials Used: Laterite sub-base, crushed stone base, asphalt concrete wearing course.
Construction Phases
Land Clearing & Surveying
Removal of vegetation, demolition of obstructing structures.
Geotechnical surveys to assess soil stability.
Earthworks & Subgrade Preparation
Excavation and filling with laterite.
Compaction to achieve 95% Modified Proctor Density.
Drainage System Installation
Concrete-lined side drains and culverts to combat flooding.
Base & Surface Course Construction
Granite base (0–50mm aggregates) laid and compacted.
Asphalt overlay 50mm thick.
Ancillary Works
Walkways, streetlights, road markings, and signage.
Challenges
Geological & Hydrological Issues
Poor Soil Conditions
Soft clay soils in Uyo required soil stabilization (cement treatment) to prevent road failure.
Flooding & Drainage Issues
Inadequate and lack of initial drainage system led to waterlogging, requiring redesign of the whole drainage system and the provision of new undergrounds to drain the stormwater in some sections.
Right-of-Way (ROW) Conflicts
Some property owners resisted demolition without adequate compensation.
Legal disputes slowed progress in certain sections.
Traffic & Logistics Challenges
Heavy Traffic Disruptions: Construction especially between Ibom Plaza and Nwaniba/Oron Road Junction (approx. 1km) was very difficult and affected by heavy traffic and plenty shops along the road.
Material Supply Issues: Occasional delays in granite supply from quarries.
Funding & Project Delays
Intermittent budget releases slowed progress.
Impact
Improved Transportation: Reduced travel time between Uyo metropolis and adjoining areas.
Economic Growth: Enhanced access to markets and government offices and business activities.
Urban Development: Attracted real estate investments along the corridor (shops, hotels, real estate)..
Flood Mitigation: Proper drainage reduced erosion and water damage.
Improved Connectivity: Faster access from Uyo Town to Le Meridien Hotel boosting tourism.
Reduced Traffic: Eased congestion on Ikot Ekpene Road and Oron Road.
Enhanced Safety: Proper street lighting reduced accidents at night.
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NIGERIA
Fleet House, 105 Olu Obasanjo Road,
Port Harcourt, Rivers State.
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