Cotonou Bypass Project: Route and Construction Status (2026)
Cotonou's northern bypass, also known as the CONOCO project, has for years promised to relieve the city center by rerouting heavy port traffic from the Port Autonome de Cotonou onto an outer highway. Regularly announced as imminent, the project spent years in limbo before an official relaunch with a revised route. Here's where things actually stand, past the press releases.
Quick summary: Cotonou's northern bypass project (2026)
- The CONOCO project: a 37 km highway plus a 5.7 km connector link to the Port Autonome de Cotonou.
- New route: repositioned along the Dantokpa shoreline and extended to Akassato to serve the GDIZ (Glo-Djigbé industrial zone).
- Revised budget: roughly 487 billion FCFA (~$810 million), covering technical studies and the concession process.
- Land impact: speculative land opportunities springing up around the future interchanges in Abomey-Calavi.
1. The CONOCO project: what it actually is
Cotonou's northern bypass consists of building a roughly 37-kilometer road, complemented by a 5.7-kilometer connector linking the main route to the Port Autonome de Cotonou. The goal has stayed the same since the project's inception: divert the thousands of container trucks that currently cross through the city center to reach the Glo-Djigbé special economic zone (GDIZ), located about 45 km from Cotonou, and the major regional highways to Nigeria and Togo.
The project's cost is estimated at around 487 billion FCFA, a figure that partly explains the slow pace of financing and the repeated rounds of concession bidding.
2. The revised route: why the project changed shape
The original route called for crossing Cotonou's lagoon from the east — an option that would have meant significant population displacement and compensation payments in densely populated areas. Faced with that roadblock, the route was repositioned along the Dantokpa shoreline instead of cutting through the lagoon, a change the government confirmed in 2024.
The route was also extended to Akassato, in the municipality of Abomey-Calavi, to better serve the new economic hubs developing in that area: the future wholesale market and the GDIZ itself. This extension reflects territorial logic rather than a simple technical tweak — the goal is to connect the bypass to the areas actually generating heavy-truck traffic, rather than building a road that circles the city without addressing the real logistics needs of the port and the industrial zone.
3. Where construction actually stands
This is the point most often glossed over in official communications: as of mid-2025, not a single meter of pavement had been laid along the northern bypass route. No concessionaire had been selected and no construction contract had been signed, years after the project was first announced.
The final technical studies were being wrapped up by the engineering firm handling the project as of spring 2025 — a necessary step before launching the call for proposals to select a concessionaire. The minister in charge of Cadre de Vie (Living Environment) communicated these technical details and the revised timeline over the course of 2025, confirming that the selection process still had to run its course before any work could begin.
In short: the project is real, funded on paper, and politically backed, but it remains at the preparatory stage. Any announcement of a short-term delivery timeline should be taken with a grain of salt until a concession contract is actually signed.
4. What's already moving: the Asphaltage program and the Route des Pêches
Independent of the northern bypass, two related projects are making tangible progress and already improving traffic flow in Cotonou. The national Asphaltage program has paved, drained, and lit hundreds of kilometers of inner-city roads across the city's 13 districts, easing local bottlenecks even without the big bypass. The Route des Pêches coastal road, in its phases 2 and 3, is extending the paved coastal route toward Ouidah and smoothing travel along the western seafront.
Neither project replaces the northern bypass's role in relieving port-related traffic, but together they represent the tangible, already-delivered part of Cotonou's road modernization.
5. Impact on real estate: between anticipation and caution
News of the revised route, especially its path through Akassato, has already driven up speculative land prices along the future interchanges planned in Abomey-Calavi and toward Glo-Djigbé. Real estate players are betting on logistics parks, warehouses, and residential developments once the road is delivered.
That bet carries real risk given how much the project has already been delayed: investing purely on the promise of a future interchange, with no visibility on when construction will actually start, exposes buyers to an uncertain payoff horizon. Areas that already have delivered infrastructure (Asphaltage roads, the Route des Pêches) offer a more solid short-term investment base than land whose value hinges entirely on a bypass still stuck at the study phase.
FAQ: Cotonou's Northern Bypass
Is Cotonou's northern bypass currently under construction?
No, not yet. As of mid-2025, no concessionaire had been named and no road had been built. The final technical studies were being wrapped up, a step that precedes the call for proposals to choose a concessionaire.
Why did the bypass route change?
The original route, which crossed Cotonou's lagoon from the east, would have required significant population displacement and heavy compensation payments. The new route runs along the Dantokpa shoreline and was extended to Akassato to better serve Abomey-Calavi's future economic hubs, including the GDIZ.
What's the connection between the northern bypass and the GDIZ?
The bypass is meant to quickly connect the Port Autonome de Cotonou to the Glo-Djigbé special economic zone, about 45 km away, by rerouting container traffic away from the city center. That's one of the project's central economic goals.
Should you invest in the areas along the announced future route?
It's a speculative bet as long as no concession contract is signed and no reliable construction timeline is published. Already-delivered infrastructure, like the Asphaltage roads or the Route des Pêches, offers a safer short-term investment base.
Information verified against Beninese press sources and the website of the Ministère du Cadre de Vie et des Transports (cadredevie.gouv.bj). Updated: July 2026.