Project Brief
Adept were appointed by Asda to construct a Drive-to-Pay kiosk petrol filling station (PFS) and customer carpark with associated facilities.
The site sits within a flood zone and the existing office building was demolished to create an additional carparking area for the main Asda store.
Solution
Throughout the project, Adept faced several challenges. Drainage design complications emerged due to the site’s proximity to a nearby river. This required close collaboration with the local Lead Local Flood Authority (LLFA) to develop a suitable design that addressed both the ground conditions and the surrounding environment. The final solution included a silt reduction system to manage discharge into the main watercourse. Although existing records indicated the presence of a culvert beneath the site, Adept’s investigations confirmed that it no longer existed.
The site’s ground conditions were poor, with low California Bearing Ratio (CBR) values. To address this, geogrids were installed beneath hardstanding areas to improve stability. Due to the weak ground, pad foundations were not feasible, so piled foundations were adopted as an alternative.
The scheme underwent multiple changes during the construction phases. Adept efficiently updated the plans to accommodate these revisions. Ongoing coordination with the design team ensured that the PFS was built both efficiently and cost-effectively. Additionally, the reduction in hardstanding areas led to decreased attenuation volumes on site.
