Worksop Sewage Treatment Works – Chesterfield Canal Arch Bridge

Client Introduction

Client: Severn Trent Water
Contractor: Mott MacDonald Bentley Ltd
Sector: Water infrastructure and civil engineering

Project Overview

The Worksop Sewage Treatment Works (STW) project included the construction of a new Sludge Treatment Facility (STF) and a dedicated access road. A key element of this development was the Chesterfield Canal Arch Bridge, designed to provide access across the historic Chesterfield Canal while maintaining the area’s heritage character.

Key Deliverables:
• Proprietary three-section precast concrete arch for the Chesterfield Canal Arch Bridge
• In-situ masonry cladding to match historic 18th-century canal bridges
• Precast parapets and arch vaults to support the viaduct and bridge structures

The Client’s Challenge

Specific Problem:
The new access road required a crossing over the Chesterfield Canal, a site of significant historical value. British Waterways required that any new structure harmonise with the canal’s heritage, specifically mandating the use of a masonry-clad arch like those built in the 18th century. The bridge also had to be installed quickly during limited canal stoppages, with minimal environmental and visual impact.

Why Resolution Was Critical:
• Preserved the visual integrity and heritage of the Chesterfield Canal
• Ensured compliance with British Waterways’ strict requirements
• Enabled timely construction within the project’s demanding schedule

Risks if Unresolved:
• Potential objections from heritage and environmental bodies
• Delays to the new sludge treatment facility’s commissioning
• Increased project costs and reputational risk

Our Solution

ABM Precast Solutions delivered a bespoke approach to the Chesterfield Canal Arch Bridge, balancing heritage requirements with modern construction efficiency:

• Designed and manufactured a proprietary three-section precast concrete arch, allowing rapid installation in nine segments during temporary canal stoppages
• Applied in-situ brick cladding to the precast arch, achieving the traditional appearance demanded by British Waterways
• Supplied precast parapets and arch vaults to ensure structural integrity and visual consistency
• Collaborated closely with the contractor and client to coordinate installation and minimise disruption to the canal and surrounding landscape
• Supported the redesign of arch abutments, replacing brick wing walls with Tensar reinforced earth grids and grassed slopes for a cost-effective, visually appealing finish

Technical and Logistical Innovations:
• Segmental precast design for efficient transport, handling, and installation
• Use of locally sourced recycled fill for approach ramps, supporting sustainability
• Integration of reinforced earth solutions for landscape enhancement

The Results

Outcomes for the Client:
• Seamless integration of the new Chesterfield Canal Arch Bridge with historic surroundings
• Rapid, defect-free installation within the scheduled canal closure periods
• Durable, low-maintenance structure that meets both heritage and operational requirements

Quantifiable Results:
• Bridge installed in nine segments with minimal disruption
• Successful delivery of all precast elements to specification
• Approach ramps completed with recycled fill and reinforced earth slopes

Client Feedback:
Information not provided.

Key Takeaways & Summary

The Worksop STW – Chesterfield Canal Arch Bridge project highlights ABM Precast Solutions’ expertise in delivering infrastructure that respects historical context while meeting modern engineering standards. The Chesterfield Canal Arch Bridge stands as a testament to our ability to blend innovative precast solutions with heritage preservation.

Benefits Delivered:
• Reliable, high-quality precast arch bridge tailored for a sensitive heritage site
• Fast-track installation with minimal environmental and community impact
• Collaborative approach ensuring compliance with all client and regulatory requirements

Unique Selling Points:
• Proven capability in heritage-sensitive bridge construction
• Technical excellence in precast arch bridge design and delivery
• Commitment to sustainable and visually harmonious infrastructure