Pre-benched Manhole Bases
Pre-benched Concrete Bases
Cast monolithically using high-strength concrete, precast pre-benched manhole bases provide enhanced flows in storm and sanitary manholes.
Pre-benched Manhole Bases
Meeting ASTM C478, ASTM C923 and CSA A257.4 specifications, the monolithically cast pre-benched manhole base is a robust civil product.
Concrete channelling inside the base flows from the inlet pipe connected to the base and flows to the outlets via gasketed pipe connections.
Quality Pre-benched Bases
By using precast concrete, the pre-benched bases are of high quality and are built to exacting dimensions providing permanence and value.
1050 Pre-benched Bases
For Inlet/Outlets up to 450mm diameters
1200 Pre-benched Bases
For Inlet/Outlets up to 600mm diameters
1350 Pre-benched Bases
For Inlet/Outlets up to 1200mm diameters
1800 Pre-benched Bases
For Inlet/Outlets up to 1350mm diameters
2400 Pre-benched Bases
For Inlet/Outlets up to 1800mm diameters
Drawings Downloads
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ØPreBench Detail
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Pre-benched Manhole Bases are part of storm & sanitary designs and are an important part of civil engineering designs.
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Better alternative to plastic
Langley Concrete has invested in technologies and equipment to offer a wide range of products for developing civil underground applications.
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