Speaking during a public address, Gachagua questioned how billions of shillings were allegedlypaid despite the project failing to proceed as initially planned.
He claimed the payments raised serious concerns about accountability and transparency in the handling of major infrastructure contracts involving foreign companies.
The former Deputy President alleged that French firms connected to the project benefited from payments amounting to KSh7 billion even after the contract stalled, arguing that Kenyans deserved answers over how public funds were utilized.
Gachagua further criticized the government’s handling of the road project, saying the issue reflected a broader pattern of questionable deals involving international contractors.
He maintained that leaders must be held accountable for decisions that expose taxpayers to financial losses.
The Rironi-Mau Summit Road project had been presented as one of the major infrastructure plans aimed at easing congestion along the busy Nairobi-Nakuru highway corridor.
The road is considered critical for transport and trade, connecting Nairobi to western Kenya and neighboring countries within the East African region.
However, the project later became the subject of political debate and public scrutiny after reports emerged indicating changes in the contract arrangements and disputes surrounding financing and implementation.
Gachagua’s remarks are likely to trigger diplomatic and political reactions, especially given the direct reference to President Macron and French companies.
His comments also add a new dimension to the growing political contestation surrounding infrastructure projects and foreign partnerships in Kenya.
Although the French government had not responded to the allegations at the time of publication, the accusations are expected to generate discussion both within government circles and among political leaders.
The former Deputy President has in recent months intensified criticism against President William Ruto’s administration following his impeachment and subsequent fallout with sections of the Kenya Kwanza leadership.