The proposed scheme at Brass Castle Lane in Nunthorpe is a residential development consisting of 45 new build executive houses with a number of units incorporating home office features within the roof void of detached garages to provide facilities for the new way of working as a result of the Covid pandemic. The scheme also includes private garden areas, private driveways/off street parking, road side swale features and landscaped SUDS attenuation basin.
Beckwith & Hanlon were appointed to provide Civil and Structural Engineering design services associated with main roads and sewers, plotworks, cut and fill earthworks, foundations, retaining walls and development of a detailed SUDS Maintenance and Management Schedule to meet the requirements of the LLFA and Water Authority. The design was quite challenging with a number of constraints to consider such as the steep sloping topography along the western side of the site, existing trees to be retained/protected along with topography to overcome as part of the main access road into the site off Brass Castle Lane as well as the earthworks requirements relating to the forming of the on line attenuation SUDS basin in the low point of the site in a steep sloping area. The overall levels design required an innovative and sensitive approach to ensure that suitable plateaus were formed for the houses and the network of swales, required side slopes, earthwork tie in batters and maintenance access tracks were achieved for the SUDS attenuation basin without incorporation of retaining walls and retaining wall locations and extent to avoid impact on existing trees to be retained.
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