R18B 00 1810 Rectangular Headwall is a single-piece precast concrete headwall with separate toe extensions, designed for use with twin wall, uPVC, clay, or concrete pipes up to 750mm. Suitable for drainage and outfall applications, this headwall range allows for multiple pipe openings and can be factory fitted with gratings, flap valves, penstocks, handrails, and other accessories.

  • Single-piece precast concrete headwall with separate toe extensions for pipework up to 750mm

  • Accommodates twin wall, uPVC, clay, or concrete pipes

  • Multiple pipe openings can be cast into back wall or wingwalls

  • Factory fitting of gratings, flap valves, penstocks, handrails, baffle blocks, and orifice plates

  • Openings cast to suit pipe diameter and invert level

  • Natural concrete finish as standard, with four colour options

  • Toe extensions fixed using threaded rod, nuts, washers, and high strength non-shrink grout

Applications

  • Surface water drainage outfalls

  • Stormwater management systems

  • River, stream, or culvert outfalls

  • Infrastructure and civil engineering projects

  • Flood defence schemes

  • Pipework terminations in public or private developments

Dimensions

  • Back wall height 1300mm

  • Maximum pipe opening 750mm

  • Approximate headwall weight 3975kg

Materials

Made from precast concrete

Colours

Natural, Cotswold, Agate, Raven Grey, Everglade

Finish

Natural concrete finish as standard

Options and variations

  • Three toe depths in 300mm and 500mm thickness

  • Factory fitted accessories: gratings, flap valves, penstocks, handrails, baffle blocks, orifice plates

  • Multiple pipe openings and invert level customisation

Installation

Toe extensions fixed with threaded rod, nuts, washers, and high strength non-shrink grout