Marshalls Civils & Drainage has introduced a purpose-built manhole safety cover slab to address the safety risks of exposed manhole shafts both during and after construction. The galvanised mild steel grille has been designed to fit all standard cover slab access holes, and supports pedestrian loads up to 500kg. Available across multiple sized apperatures, the safety cover slab is delivered with the safety grille already fitted and secured through a locking mechanism. After installation of seating rings and manhole metal work the grille can still be accessed to allow for maintenance and inspections.