Cathedral Street Glasgow Sewer Collapse

Sewer Repairs

Cathedral Street is completely closed at its junction with North Frederick Street to allow the sewer repair work to be carried out safely

Cathedral Street in Glasgow city centre is currently closed to allow our operatives to safely carry out urgent sewer repairs.

A CCTV survey has confirmed the sewer running beneath Cathedral Street has collapsed causing voids under the carriageway at its junction with North Frederick Street.

The results clearly show damage to the sewer and the soil beneath the road surface having been washed away.

The road will therefore remain closed while we carry out a repair which we estimate will take approximately four weeks to complete.

Diversion routes are in place, and we would please ask drivers to follow all signs to keep everybody safe.

We would like to thank everyone affected for their patience and understanding.

Cathedral Street Glasgow Sewer Collapse

The closure is on a busy stretch of Cathedral Street

Cathedral Street Glasgow Sewer Collapse

Both sides of the carriageway have been closed

Update 23 April 2026

We are making good progress with the third excavation which has allowed us to access the sewer and complete a clean and CCTV survey of the pipe as it passes under the sinkhole.

This was a high-risk operation requiring the deployment of specialist confined-space operatives who were supported by an emergency rescue team wearing breathing apparatus.

Defects were found along most of the 38-metre section running beneath the road from the edge of our excavation to the corner of North Frederick Street.

The entire length will need to be relined, but we can carry this out without the need to dig which will speed up repairs on this section of the sewer. The new lining will seal the old Victorian brickwork and significantly improve its structural integrity.

At the same time, we are continuing our excavation works to relay the sewer and rebuild two manholes.

Repairs on the sewer and sinkhole are now expected to take up to twelve weeks to complete after the road was closed on safety grounds on Wednesday 1 April 2026.

Cathedral Street remains closed between North Hanover Street and Montrose Street with a signed diversion in place. A temporary Bus Gate suspension is also in place at Cathedral Bridge and temporary parking restrictions introduced on Martha Street.

Local access to North Frederick Street, North Frederick Path, Martha Street and John Street is being maintained and traffic control operatives are on site 24 hours a day to monitor the situation.

Everything is being done complete the repairs and reopen the road as quickly as possible. We would like to thank everyone affected for their continued patience and understanding.

Cathedral Street Glasgow Sewer Repair

There are numerous other utilities in the work area

Cathedral Street Glasgow Sewer Repair

Digging through clay is hampering progress