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Taking care of your sewer network in Greenock

Watch the latest video of the investment work here.

What we are doing?

We are taking care of the waste water services in your community by upgrading the sewer pipes to help alleviate flooding in the area. This £2.8m investment project began in January 2018 and, once completed, will help alleviate flooding that occurs at the Oakmall Shopping Centre during periods of severe rainfall. 

What does the project involve?

Forty-seven metres of pipework is being installed to upgrade the existing sewer network, improve the water flow, and reduce the risk of flooding in the Oak Mall Shopping Centre and surrounding areas. The work is being carried out by Scottish Water’s alliance partner Amey Black and Veatch. The work is expected to take approximately 9 months for completion.

Where is the work taking place? 

Our current work is being carried out on the existing network in three separate locations:

Bullring Car Park

Most of the work within the Bullring car park has now been completed and the car park is in operation. 

B&M Car Park 


Work is ongoing to install two Combined Sewer Overflows within the car park of the B&M Home Store - located at point 1(Westburn Street) and point 2 (Inverkip Street) on the map below. Workers will use the open cut method to install pipework to connect the two chambers.

Please note:
•Parking has been suspended in some parking bays within the car park. Works have been located away from the shop entrance to help minimise disruption for customers and staff. 
•Diversion of existing utilities required at the start of the project which will require traffic management on the A78 Inverkip Street.
•Full pedestrian access will be maintained at all times.
•You may notice some noise and vibration from the works. 

Plan of 3 locations of work:


Temporary 4 way traffic lights on the High Street roundabout (A78 Inverkip Street) from 9th July for approx. 4 weeks

We require to connect the new infrastructure on the existing sewer that is located in the roundabout. To do this work safely we have to introduce a four way traffic light traffic set up at the roundabout with Inverkip St (A78) / Sir Michael St / High St for approx. 4 weeks.

How this may affect you:

• Traffic lights will be set up at the roundabout with Inverkip St (A78) / Sir Michael St / High St / exit to Greenock Bus Station for up to 4 weeks.

• A traffic contraflow system on Inverkip Street will continue to be in place with 4 lanes reduced down to 2 (one lane open each way).

• Drivers are advised to allow extra time for journeys as significant delays are expected.

• Pedestrian access will be maintained - please follow diversions in place. The pedestrian crossing near the roundabout will be replaced with a temporary crossing.

• All local businesses will remain open as usual while we are working.

Public information stand held at Oakmall shopping mall


An information stand was held in the Oakmall shopping mall between 19/04/18 – 03/05/18.

To view the information slides, please click here.

Inverclyde catchment study

Future studies and investigations will be carried out to look at the flooding risk across the wider area.

Please click here for more information on the Inverclyde catchment study.