Bespoke Headwalls
Unbrako offer a wide range of bespoke precast concrete headwalls for culvert systems, produced at design stage or as an alternative to in-situ headwalls.
Bespoke Headwalls
Unbrako Precast can provide bespoke headwall solutions designed to integrate seamlessly with our precast concrete culvert systems. Where required, headwalls can be incorporated to support effective water management and help protect discharge points into watercourses such as attenuation ponds, detention basins, rivers, ditches, and swales.
Solutions are developed on a project-specific basis to suit site conditions, hydraulic requirements, and overall drainage design. A range of features and components can be accommodated where required, including flow control and safety provisions.
Made To Order
Manufactured to your required width, height and loading
Fully Customisable
Project-specific designs with options for handrails, ladders, gratings and penstocks
Fast Installation
Nationwide delivery, culvert systems arrive ready for quick installation
We provide Practical Guidance and Clear Solutions
Key Benefits
Precast headwall solutions offer a highly efficient and reliable method for managing water flow and supporting infrastructure.
- Tailored to Project Requirements - Every drainage project has unique site conditions and design specifications
- Improved Drainage Efficiency - Headwalls help guide water smoothly into and out of culverts, reducing turbulence and improving the efficiency of the drainage system
- Erosion and Ground Protection - By controlling the direction of water flow, headwalls help prevent erosion around culvert openings
- Faster Installation - Precast headwalls are manufactured off-site and delivered ready for installation
- Durable and Long-Lasting - Constructed from high-quality reinforced precast concrete, bespoke headwalls are designed to withstand harsh weather conditions, water exposure, and environmental wear
- Seamless Integration with Culvert Systems - Bespoke headwalls are designed to integrate perfectly with precast box culverts, pipes, and other drainage components
Designed to suit the specific requirements of each project, precast headwalls help protect drainage systems, stabilise surrounding ground, and improve the long-term performance of culvert installations.
Common Applications
Common applications include:
- Road and Highway Drainage Outfalls - Used at culvert inlets and outlets to support controlled water flow, protect embankments, and reduce erosion around drainage openings
- Attenuation & SuDS Applications - Integrated into Sustainable Drainage Systems (SuDS) to manage discharge points from attenuation ponds, detention basins, swales, and surface water systems
- Railway and Transport Infrastructure - Installed at culvert entrances and exits to support safe water conveyance beneath transport corridors while protecting surrounding ground
- Agricultural Drainage - Helps manage field drainage and water movement across farmland, protecting culvert openings, ditches, and access routes from erosion
- Stormwater and Flood Management - Provides durable inlet and outlet protection for stormwater systems, helping control flows and reduce flood-related erosion
- Industrial and Commercial Developments - Supports drainage infrastructure around buildings, yards, roads, and access areas by providing robust discharge and inlet/outlet protection
- Watercourse and Ditch Discharge Points - Used where culverts, pipes, or drainage systems discharge into rivers, ditches, swales, ponds, or other watercourses
Product Specifications
Concrete: High-strength structural concrete (typically C50 or as required)
Selected to provide durability and performance in line with site conditions and design criteria.
Finish: Smooth finish or as specified
Designed to enhance performance and minimise maintenance requirements.
Design life: Up to 120 years
Engineered for long-term use in accordance with relevant standards and site-specific conditions.
Proud to be one of the UK’s Leading Concrete Producers
Why Choose Unbrako?
We understand that no two drainage or infrastructure projects are identical. That’s why we offer fully bespoke culvert solutions tailored to:
- Hydraulic design requirements
- Ground conditions
- Load classifications
- Environmental considerations
- Site access constraints
- Programme timelines
Our team works closely with engineers, contractors, and developers to deliver practical, buildable, and compliant solutions.
From small drainage schemes to major infrastructure developments, Unbrako Precast Concrete LTD provides durable, engineered culvert solutions built for long-term performance.
How To Order:
Our precast concrete headwalls can be ordered directly from our sales team. We offer a site visit and design service for every project if required and are also available to assist with technical advice.
For more information, please fill in the enquiries form using the button below, or call 01949 860 985 to speak with our sales team. Alternatively, email Daniel@unbrakoprecast.com for direct technical support on your project.
