Cardross New Overflow and Sewer Upgrade

What We Are Doing

We have constructed a new screened overflow in Geilston Park Cardross and upgraded the associated sewer network to alleviate sewer flooding in the area. Excess waste water will now be discharged into the nearby Geilston Burn during storms.

An overflow is designed to prevent the contents of a sewer from backing up into homes and businesses during periods of extreme weather. They are a critical component required to manage flows during peak rainfall. 

Approximately 99% discharges are comprised of excess rain/surface water and domestic waste water (from sinks, showers, baths etc). Less than 1% is actually waste water from toilets.

Why We Are Doing It

There is not enough capacity in the Cardross sewer network which has led to sewer flooding affecting nearly a dozen properties. Geilston Park and the tennis courts have also been affected.

Several potential solutions were considered but a new overflow is the best option to find a safe and more practicable route to divert excess rainwater away from the sewer network to reduce the risk of flooding.

The project provides protection for the park and wider village and has been delivered with the minimum impact on the community and the environment.

Update February 2025

The new overflow has been installed and we are finishing up reinstating the park and removing our site compound.

Testing of the automatic screens which will filter the excess rainwater before it is safely discharged into the Geilston Burn has been successfully completed and the new outfall is fully operational.