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Donegan Civil Engineering

Foul Water Storage Shaft – Newlands Court, South Shields

A 25.00m diameter underpinned shaft providing over 4,000m³ of foul water storage for Northumbrian Water

By: Valentine Donegan

Published: August 6, 2026

Foul Water Storage Shaft - Newlands Court, South Shields

Client: Seymour Civil Engineering Contractors / Northumbrian Water

Project Description / Main Operations

This project was carried out for Seymour Civil Engineering Contractors on a Northumbrian Water project. A 25.00m diameter shaft was underpinned to a depth of approx. 12m in good firm clays, providing over 4,000m³ – 4 million litres – of foul water storage capacity.

Scope and method:

Underpinning of a 25.00m diameter shaft to approx. 12m depth in good firm clays.
On reaching formation level, and with all rings built, grouted and caulked, pouring of a mass concrete plug.
Once the plug had cured, installation of steel reinforcement for the concrete base slab, with starter bars protruding for the 4 no. concrete support columns carrying the precast concrete cover slab.

For More Information, contact us at http://www.donegan.co.uk

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