Althon Swale & Pond Inlet Headwalls are one piece concrete headwalls to suit pipework up to 600mm internal diameter. These headwalls can be used when the ditch bank is very shallow, approximately 1:3 Our Swale Headwalls can be provided with fixings for gratings, flap valves or with a full length sloped grating.
Althon Headwalls offer a cost effective alternative to in-situ structures for connecting pipework discharging into open water courses.
All drainage pipes discharging into open watercourses, such as swales, ditches, ponds and rivers, should be fitted with an appropriate Althon headwall.
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