A DAMAGED asbestos concrete (AC) sewer pipe that led to the appearance of a sinkhole in front of Badi’ah Hotel and led to the closure of a section of Jalan Raja Isteri Pengiran Anak Saleha has been removed and replaced with a more durable vitrified clay sewer pipe.
The sewer pipe has a diameter of 525mm and is located six metres below the road surface. The repairs made are also part of the Department of Public Work’s strategy to replace ageing sewer pipes in order to improve the existing sewerage system’s infrastructure.
A departmental investigation revealed a 100mm hole in the upper section of the pipe that is believed to have been caused by old underground culvert work in addition to the age of the pipe itself, according to a press release.
The department highlighted that, “As asbestos cement pipes get older, they become more brittle and can get damaged easily. The damage was believed to have happened some time ago, causing soil to be carried away over time and creating the hole in the ground.
“Routine inspection by the Department of Roads uncovered the damage on January 9 and upon excavation, found the big hole and the damaged pipe. The road was closed for safety reasons while the repairs were carried out.
“The damaged sewer pipe is part of an underground network carrying sewage discharge from surrounding commercial and residential areas including government institutions and schools along Jalan Raja Isteri Pengiran Anak Saleha. The sewerage infrastructure was built around 1968 under the National Development Plan.”
About two metres of the pipe has been removed and replaced with a more durable vitrified clay sewer pipe.
The road was repaired and reopened to traffic on January 11.