Traffic Alert: Major Diversions at Tetteh Quarshie Interchange | Discuss Ghana

As of Monday, March 9, 2026, the Ghana Highway Authority (GHA) has officially implemented a major traffic management plan at the Tetteh Quarshie Interchange. These temporary adjustments are necessary to facilitate T-beam launching works for the expansion of the interchange bridge, a critical component of the $350 million Accra-Tema Motorway and Extensions Project.

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Key Diversion Details

The new traffic flow is expected to remain in place for approximately four months (until July 2026):

Northbound Closure (Accra to Madina): All lanes on the N4 northbound carriageway heading from Accra toward Madina are now temporarily closed.

Reconfigured Southbound Side: The southbound carriageway (usually four lanes from Madina to Accra) has been split into a contraflow system with two lanes in each direction.

Project Scope: The works involve widening the interchange bridge to three lanes on each side to resolve the chronic bottleneck where the N1 and N4 corridors meet.

Current Progress: The overall Motorway extension project, being executed by the Ghanaian-owned firm Maripoma Limited, is currently reported to be 35% complete.

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Commuter Advisory and Safety

The GHA and the Motor Traffic and Transport Division (MTTD) have issued the following guidelines for motorists:

Expect Delays: Significant congestion is anticipated during peak morning and evening hours as six lanes of traffic merge into four.

Safety First: The lane reduction is "necessary in the interest of Public Safety" to provide a secure working zone for personnel beneath and on the bridge.

Follow Signage: Motorists must strictly adhere to directional signs, observe speed limits, and cooperate with traffic officials on-site.

Information Line: For real-time updates or inquiries, the GHA Public Affairs Division can be reached via WhatsApp at 0551622244.

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Alternative Routes

To avoid the Tetteh Quarshie bottleneck, motorists are encouraged to consider these alternatives:

From Accra to Madina: Use the Boundary Road through East Legon to connect to the N4 at the University of Professional Studies, Accra (UPSA).

From Tema to Madina: Exit the Motorway at the Abattoir or Flowerpot interchanges to navigate through internal community roads.