Spillway Outfall

As part of the Marshalls stormwater range of products, Marshalls Civils & Drainage offer a precast concrete Spillway solution, so why spend days constructing an in-situ headwall on site when precast options are available now that are made under factory conditions and can be installed in hours, not days!

The one-piece bespoke reinforced concrete spillway is manufactured offsite under factory conditions, offering consistent manufacturing processes for on-site installation and is used to control the flow of water.

The spillway outfall can be pre-fitted closed, coupled and cranked gratings, customised to site requirements.

Benefits of the spillway outfall include:

  • Greatly reduced installation time on site as product is made offsite for immediate installation.
  • Ability to accommodate pipe-work up to and including 1600mm ID – 2000mm OD.
  • Designed to your needs with bespoke precast options available to suit your site needs.
  • Customise to your requirements the spillwalls can be pre-fitted various accessories including: Hydro-Brakes®, Penstocks, Non-return Flap Valves.
  • No or minimal on-site fabrications meaning quick and easy installation.



01179 814500


Certification Logos and Accreditations

  • Accreditation ISO 9001 Logo
  • Accreditation ISO14001 Logo