The Cairnhill Circle entrance of the CTE was closed as a result.
“The accident caused damage to some electrical and mechanical equipment at the tunnel ceiling,” said the Land Transport Authority (LTA). “There was no structural damage to the tunnel.”
The slip road was closed for repair works, which have since been completed. The slip road was reopened to traffic at 10.35pm on Friday.
A video post on the Facebook page of SG Road Vigilante showed a yellow lorry with what appears to be a crane attached to it entering the tunnel.
Wires were later seen hanging from the ceiling of the tunnel, with the lorry parked on one side while other vehicles moved slowly through the slip road.
