ERYC Hornsea Boat Compound

Overview

Mason Clark Associates (MCA) played a pivotal role in the award-winning Hessle Foreshore Tidal Defence Scheme, working under a Framework Contract with ERYC. Tasked with designing a tidal flood barrier along a crucial 1.5km stretch of the Humber River, MCA’s work helped to safeguard Hessle and West Hull from severe tidal surges.

The scheme, developed in close collaboration with the local authorities and stakeholders, was approved by the Environmental Agency after comprehensive design and modelling work. MCA’s expertise ensured that the project met the highest standards for flood and coastal erosion risk management, while protecting local heritage and community interests.

Challenges and Solutions

The Hessle Foreshore Tidal Defence project presented several complex challenges:

• Tidal surge risks: the location along the Humber River made it highly vulnerable to tidal surges, especially when combined with wind-driven waves and heavy rainfall. We were tasked with designing a flood defence system capable of preventing flooding to local properties and vital infrastructure, including the nearby A63. Our team developed a robust tidal flood barrier that not only protected against surges but also maintained an unobstructed view of the river for residents and visitors alike.
• Collaboration with local authorities: the project required close coordination with key bodies such as Highways England and the Marine and Maritime Organisation (MMO). The team had to ensure that the work adhered to strict environmental and heritage regulations, given the project’s proximity to the river and local residential areas. We obtained necessary approvals while ensuring the design remained sensitive to the local environment.
• Construction complexities: a critical part of the project involved building a protective wall on the hard shoulder of the A63, a vital artery for the region. We worked with East Riding of Yorkshire Council and Highways England to ensure the wall would prevent flooding from reaching nearby homes without disrupting traffic or local infrastructure. Our team also had to navigate around existing obstacles, such as pedestrian areas and essential utilities, all while ensuring minimal disruption to daily life.

MCA's Contribution

We were instrumental in leading the design and construction of the flood defences, taking on the role of Civil Engineers and CDM Principal Designers. We undertook extensive feasibility studies to identify the most effective solutions and ensured that the final design met both technical requirements and community expectations.

Key contributions include:

• Developing a flood barrier that offers a 1-in-200-year standard of protection, safeguarding 4,000 properties in Hessle and West Hull
• Designing an unobtrusive, clear glass wall along the Humber that provides protection without obstructing river views
• Ensuring that local residents and authorities were consulted throughout the process, facilitating a smooth project timeline with minimal delays
• Using non-vibrating piling methods to avoid damage to nearby properties and sensitive structures

Results

The Hessle Foreshore Tidal Defence Scheme has been widely recognised for its innovation and effectiveness. Our work earned the project the prestigious Constructing Excellence National Civil Engineering Project of the Year award, as well as regional recognition.

The scheme has provided peace of mind to the local community by protecting 4,000 properties from potential flooding, while preserving the area’s natural beauty and heritage.

The project has also demonstrated the critical importance of public consultation and thorough site investigations in large-scale civil engineering efforts.

Our work not only ensured that the project was delivered on time and on budget but also set a new standard for future flood defence schemes across the region.