Rivers
Don Traces Nigeria’s Highway Woes To Design Failures … Proposes Mechanistic-Empirical Design Approach
A lecturer at the Rivers State University (RSU), Professor Emmanuel Osilemme Ekwulo, has called for a fundamental overhaul of Nigeria’s highway pavement systems, stating that poor design practices and weak standards, not just inadequate funding, are at the heart of the country’s persistent road failures.
Delivering the 128th inaugural lecture at the Rivers State University, titled “Removing Roadblocks: Rebuilding The Foundation For Reliable Highway Pavement Infrastructure”, Ekwulo argued that Nigeria’s roads will continue to deteriorate prematurely unless critical engineering principles are strictly applied and enforced.
According to him, recurring defects in the nation’s highways stem from a combination of faulty design processes, substandard construction materials, weak regulatory enforcement, poor drainage systems, and widespread disregard for professional ethics.
He stressed that these systemic failures have undermined the durability of road infrastructure despite significant financial investments.
“Premature pavement failures in Nigeria are not due to lack of funds alone, but largely due to poor design decisions, weak material standards, and absence of accountability,” he said.
Ekwulo proposed the adoption of the mechanistic-empirical design approach, a scientifically grounded method for predicting pavement performance, as a pathway to improving road quality.
He also advocated for the development of a localized framework, the Nigerian Empirical and Mechanistic Pavement Design System (NEMPADS), to reflect the country’s unique environmental and material conditions.
He further recommended stricter quality control measures, including independent audits, the establishment of a national database for material characterization, and compulsory traffic load analysis for all road projects.
The use of modified binders and advanced materials, he added, would enhance pavement resilience.
To ensure sustainability, the Professor called for the implementation of a National Pavement Management System to coordinate maintenance and monitoring efforts nationwide, noting that consistent upkeep is essential to prolonging road lifespan.
Ekwulo emphasized the need for stronger collaboration between academia and industry, urging universities to lead applied research initiatives and pilot projects that can deliver practical solutions to Nigeria’s infrastructure challenges.
Earlier, the Vice Chancellor of Rivers State University, Professor Isaac Zeb-Obipi, said universities must play a frontline role in addressing national development issues through research-driven interventions.
He described the lecture as timely, noting that the neglect of core engineering standards has contributed significantly to the country’s failing highways.
The event, held at the Dr. Ezenwo Wike Senate Building in the campus, also featured the formal decoration of Ekwulo as the institution’s 128th inaugural lecturer.
Reiterating his position after the lecture, Ekwulo stated that with proper design methods, quality materials, and strict adherence to global standards, Nigeria’s roads can achieve their intended lifespan of 10 to 20 years or more.
“Without a return to engineering fundamentals and accountability, investments in road infrastructure will continue to yield poor results”, he concluded.