
Northington Depot
Weybridge
Case Study
Location: Northington, Hampshire
Client: Milestone Infrastructure (M Group)
Value: Circa £157K
Date: Completed 2024

Northington Depot is a remote satellite facility located in Hampshire, primarily used for managing and operating the cyclical gulley cleansing contract. The depot has historical significance, originally serving as a WW2 fuel depot and still retaining several of its original brick structures, which add to its character and uniqueness.
Recently, we undertook significant work to update and enhance this depot for the client. This included the installation of a modern waste recycling bay system, aimed at improving operational efficiency and environmental sustainability. Building on these improvements, we have now been called back to further upgrade the site by installing a weighbridge. This addition will allow for the safe and accurate capture of vehicle weights, ensuring compliance and operational accuracy.
The project began by excavating the area down to a suitable formation and constructing a concrete slab to provide a stable base for the weighbridge. This initial phase involved installing precise formwork and steel reinforcement to support the construction of the concrete walls. The steel fixing and tying process was particularly complex and intricate due to the need for precise alignment and structural integrity.
The reinforcement design demanded meticulous attention to detail, as it included multiple Layers of steel bars tied together at precise intervals to meet loadbearing and durability requirements.
Each connection was carefully secured to ensure the reinforcement could withstand the significant forces involved in the operation of the weighbridge.
The geometry of the formwork added further complexity, requiring precise placement of the steel within tight tolerances to maintain the structural design and allow seamless integration with the weighbridge bearing plates.
Adding to the challenge, the bearing plates for the weighbridge—essential for the structure's functionality—had to be mounted during the concrete pouring process with an exact tolerance of only 2mm.
This required precise coordination between the steel fixing team and the concrete pouring crew to ensure that the plates were correctly positioned and secured without disrupting the structural framework.
Over the course of a week, the outer structure of the weighbridge bay was poured and formed, with all elements aligned to the tight tolerances required for operational accuracy. Following this, drainage works were undertaken to address the pit's depth of 1 meter and prevent water retention.
Four outlets and a new catchpit were installed to enable the pit to be pumped clean, while longterm plans for a soakaway system at the site are being developed.
Subsequently, retaining areas were constructed, and new asphalt surfacing was laid around the site to ensure vehicles could safely access and mount the weighbridge. The final phase of the project involved installing ducting and electrical connections to supply power and enable remote monitoring from the office.







