Federal Government Directs 70% Stone Base Aggregate for Road Construction Projects

Taiwo Ajayi
2 Min Read

The Federal Government has issued a directive for road construction projects nationwide, requiring a mix of 70% stone base aggregate and 30% dust base for the foundation of all road works.

This directive, emphasized by the Minister of Works, David Umahi, aims to ensure the quality and durability of road infrastructure across the country.


The Minister instructed all Controllers of Works to enforce strict adherence to this specification, as detailed in a statement on the ministry’s website. This directive was highlighted during an inspection of the Sapele-Agbor road dualization project in Delta State, being executed by CGC Nigeria Ltd.

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Umahi commended CGC Nigeria Ltd for its satisfactory progress on the project but stressed the importance of following the government’s guidelines. He specifically instructed the company to use the existing asphalt protocol, pulverize it, and apply a 20cm stone base, while advising against the use of a dust base.

Additionally, the Minister inspected various other road projects in Delta and Edo States, including the Warri-Sapele route managed by SKECC Nigeria Ltd and the Benin-Warri route’s rehabilitation efforts by Geld Construction Nig Ltd/Tracter Nigeria Ltd. He also inspected projects in Edo State, including the Benin-Warri road and the Benin-Agbor and Benin By-pass routes.

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Umahi issued an ultimatum to Geld Construction Nig Ltd/Tracter Nigeria Ltd, demanding they justify the mobilization funds received within 14 days or face contract termination. He warned, “After 14 days of this warning notice and nothing is happening, I will come and terminate the job.”

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