Water of Leith

Water of Leith

Over the next 2 years we are investing to help improve the environment around the Water of Leith

Project Overview

We are improving Edinburgh's waste water systems with a multi-million pound investment.  The project will improve the environment around the Water of Leith. Our alliance partners amey Black and Veatch (aBV) will be carrying out the work.

Once complete, this new infrastructure will help prevent items which are wrongly flushed down the toilet - from overflowing into the Water of Leith

The project requires upgrade work to various Combined Sewer Overflows (CSOs) at 14 locations along or near the Water of Leith. 

We will be updating these project pages as the project progresses. 

What the project involves:

The work includes the installation of new pipework, chambers and screens to reduce the risk of sewage related debris entering the Water of Leith and removing the Unsatisfactory Intermittent Discharges (UIDs) thus improving the aesthetics and reducing the environmental impact of storm overflows on the Water of Leith. This will result in an improved watercourse for all its users. 

Work started in July 2020 and overall the combined projects are expected to take around 2 years to complete.

Current and Up-coming Projects:

Location - Click on links for more info on the individual projects.  Start date/ Duration Type of work undertaken
Old Mill CSO – On the Water of Leith Walkway between Baberton Loan and Blinkbonny Road (please see map on project page)

Juniper Green CSO – Water of Leith Walkway. See map on the project page for details

Tree removal: 20th July 2020

site mobilisation 27th July

site work start: 3rd August


New CSO chamber. There will be diversions along the pathway for walkers & cyclists

New CSO chamber with static screen. New pipework and outfall with headwall
Kingsknowe CSO - new CSO at Colinton Dell
Work Started: 12th October 2020 New CSO chamber with powered screen and associated pipework
New outfall and headwall. 
New access road needed from the Water of Leith Walkway
Currie Bowling Club - Off Lanark Road West, within the car park of the Currie bowling club Works starting 11th January 2021 for around 6 months New CSO chamber with powered screen and associated pipework
New outfall and headwall
 Gyle Park, Corstorphine   Works due to start early/mid January for around 32 weeks - TBC  New CSO chamber with powered screen and associated pipework and outfall to connect into existing culvert.