Glasgow Smart Canal — Sensor-Driven Flood Storage in North Glasgow's Canal (UK)

The North Glasgow Integrated Water Management System (NGIWMS), launched in November 2018 by Glasgow City Council, Scottish Canals, Scottish Water and the Metropolitan Glasgow Strategic Drainage Partnership, turns a stretch of the Forth & Clyde / Speirs Wharf canal into a managed stormwater receptor. Sensors and predictive weather forecasting trigger the lowering of canal water levels by as much as 10 cm before heavy rain, creating about 55,000 cubic metres of extra capacity (the partners compare this to 22 Olympic swimming pools) to take surface water from adjacent developments and discharge it to the River Kelvin.
The scheme cost about £17 million, funded through the Glasgow City Region City Deal, the Green Infrastructure Fund and the Scotland's 8th City – Smart City programme. A 60-year service agreement between partners underpins operation. The partners state it unlocks roughly 110 hectares of vacant and derelict land and enables more than 3,000 homes across five sites (Sighthill, Hamiltonhill, Ruchill, Cowlairs, Dundashill), to be connected over 10–15 years; Sighthill was first.
OPPLA's case study contrasts the approach with a conventional grey-drainage alternative it quotes at about £500 million, but this comparison is a partner claim rather than an independent evaluation. Caveats: published figures describe design capacity and development enabled, not measured flood-damage reduction in observed storms; the carbon figure quoted by partners (35,000 t) is unverified; and the benefit depends on forecast accuracy and continued canal operation. It is nonetheless a documented, institutionalised blue-green retrofit with a clear governance model that other canal cities can study.

Read the full analysis: https://glasgowcityregion.co.uk/pioneering-new-digital-surface-water-drainage-system/