​​From Arkwright to Chadwick avenues along Old Pretoria Road, mass earthworks, completed columns and reinforced steel are some of the construction work which can be seen as the construction of Watt Interchange forges ahead.

As part of the City of Joburg's Rea Vaya BRT project along the Louis Botha Development Corridor, the Johannesburg Development Agency (JDA) is constructing the Watt Interchange in Wynberg.

The Watt Interchange forms part of the Rea Vaya Bus Rapid Transport (BRT) System, Phase 1C, which includes the trunk route from Sandton to Alexandra along Rivonia Road and Katherine Drive, and the trunk route from Parktown in Johannesburg to Alexandra along Louis Botha Avenue.

The Watt Interchange will also connect, through the Mini Bus Taxis, the greater part of Alexandra Township to the Rea Vaya system, important for the integration of the different modes of transport in the city.

The upgrade will also see the construction of new BRT lanes and an underground station with associated structures, and bulk earthworks. Construction work at the Watt Interchange completed so far includes the demolishing of the previous bridge and the interchange at Watt Street, upstand concrete beams, columns for viaduct, allocation and relocation of services construction and retaining wall construction.

Once completed, the Watt Interchange will stand as a high-quality integrated public transport interchange that will consist of the following key elements:

• Underground basement loading and off-loading bays;
• Commuter Information Area
• Designated trunk route
• Universally accessible facility