Headwalls

Marshalls Civils & Drainage has developed an off-site precast concrete solution headwall system designed to connect pipe work discharging into open water courses, that offers a cost effective alternative to in-situ structures for connecting discharge from pipework into open watercourses. Precast headwalls drainage controls erosion and scour resulting from excessive velocities and turbulence and prevent adjacent soil from sloughing into the watercourse opening.

The headwalls can accommodate pipe-work up to and including 900mm and can be pre-fitted with closed coupled and cranked gratings, with three sizes available; each with various height options. Bespoke precast Headwall options are also available.

Marshalls Civils & Drainage concrete headwalls pre-fitted options include Hydro-Brakes®, Penstocks and Non-return Flap Valves depending upon application, please ask us about our time saving solutions for your headwall requirements.

Maintenance is low with only an annual check required. If needed, clean with water and some mild detergent to any exposed surfaces to main appearance. As with all concrete products, they will weather and natural coverage helps them blend into their environment

Benefits of precast concrete headwalls include:

• Erosion control options suited to your requirements

• Greatly reduced installation time, these headwalls can be installed at a fraction of the cost of an in-situ unit with no on-site shuttering or formwork required as the headwall solution is prefabricated off-site under factory conditions

• Low maintenance solution with only an annual check required