Protec Open Manhole Warning Cover

Construction sites see manholes installed early but permanent covers fitted last, leaving dangerous openings exposed to heavy plant, vehicles, and foot traffic for months. These temporary warning protectors/covers are bright yellow to catch your crew's eye, visible enough to alert site traffic of the trip hazard, while keeping your drainage systems clean and debris-free. The 600mm x 600mm option comes with a caution sign plate that can be slotted in the top.

Made from fluted polypropylene, these manhole covers are perfect for construction sites, utilities work, and road maintenance where manholes are exposed during early phases but permanent covers aren't yet installed. You can weigh these covers down with rubble or blocks for stability, and they're reusable across multiple projects. Great for preventing damage to drainage pipework and avoiding those nightmare scenarios where expensive kit or keys disappear down an uncovered hole.

This manhole cover and protector is also useful for compliance with HSE requirements around public protection and confined space safety - the last thing you need is someone taking an unexpected dive into your manholes.

Please note that this product is not designed to take the full weight of a human, or stop their fall - it is a visual indicator so workers can see trip hazards more easily on site. All variants of this product, other than the 600mm x 600 mm version, require some form of adhesive to fix their tabs into place.