The NCA is giving a heads up that they’re slowing the Capital Circle tunnel down to 40 and closing a lane while they clean it and change lights:
The National Capital Authority will begin maintenance work this Saturday on Capital Circle Tunnel resulting in changes to traffic arrangements.
The tunnel will be cleaned tomorrow, and broken lamps and electric starters replaced on the following two Saturdays.
During this time, traffic on one lane of the tunnel will be disrupted from 6am to 8pm. Traffic will still be able to flow through the tunnel.
The speed limit through the tunnel will be 40km/h while the work is taking place.
This is going to be every Saturday until 4 December.