Fish Town–Harper Road — Technical Audit (50 km)
Technical Audit — Fish Town–Harper Road Rehabilitation, Maryland County
Ministry of Public Works — Liberia
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Year
2012
Client
Ministry of Public Works, Liberia / AfDB
Funding
African Development Bank
Scope
Full corridor technical audit, ~120 km
Year
2016
Objectives & Context
Following substantial progress on the Fish Town–Harper road rehabilitation programme in Maryland County, concerns arose over construction quality and specification compliance on sections completed by the primary contractor. The African Development Bank, as project financier, requested an independent technical audit to assess the quality of completed works, determine whether payment certificates accurately reflected compliant construction, and provide a basis for any contractual remediation action. The remote location of the project and the sensitive nature of the audit — which could result in contractual claims — required both technical rigour and diplomatic handling.
Our Approach & Solution
TSC Global conducted a systematic technical audit covering pavement layer thickness and material quality through borehole sampling, drainage structure inspection, geometric checks against design drawings, and a review of the contractor's quality control records against independently collected material testing results. The audit covered the full 120 km corridor and included a financial reconciliation comparing claimed quantities against measured works. Findings were presented in a structured report format enabling the AfDB and Ministry to quantify defects and determine appropriate contract remediation measures.
Results & Impact
The audit confirmed significant quality deficiencies on several sections and identified over-certification of quantities in the contractor's payment claims. TSC Global's report provided the evidentiary basis for the Ministry and AfDB to pursue contractual remedies including partial withholding of retention payments and mandatory remedial works. The audit is credited with recovering an estimated USD 2.8 million in over-certified payments and triggering the quality remediation that enabled the road to meet its designed service life.
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