Replacement With
Minimal Network Disruption
Bridge decks are constructed from a range of materials including steel, cast iron, reinforced concrete, timber and lightweight composites. The deck is often the most vulnerable part of a bridge, as it carries direct vehicle loads and is exposed to harsh weather conditions and de-icing chemicals.
Over time, deterioration such as cracking, spalling and corrosion of internal reinforcement can reduce the deck’s load-bearing capacity. In some cases, increasing traffic volumes and heavier vehicle loads mean that existing decks are no longer able to meet current demands.
While localised repairs may be suitable in some situations, deck replacement becomes necessary when deterioration is severe or when the long-term cost of maintenance exceeds the cost of installing a new deck. Replacing the bridge deck can provide a more durable and sustainable solution, significantly extending the service life of the structure.
M67 St.AnnesAnd Performance
Bridge deck replacement involves removing the existing deteriorated deck and installing a new structure designed to meet modern standards for load capacity, serviceability and fatigue performance. This approach is often more cost-effective for bridges where the structural integrity of the deck has been significantly compromised. The process typically includes the demolition of the existing deck using specialist equipment, followed by the installation of a new deck that complies with current design codes and loading requirements. When compared to rehabilitation methods such as repairs, overlays or strengthening, full replacement is selected where a long-term solution is required.
A new bridge deck can extend the life of a structure by more than 50 years, while also improving overall strength and performance. Successful delivery of these projects depends on early contractor involvement (ECI) and close collaboration with stakeholders to ensure works are carefully planned and disruption to the road network is minimised.
Replacement Experts
As a specialist contractor, CRL Highways, has extensive experience in the demolition and replacement of bridge decks across the UK highway network.
Through early engagement and careful planning, CRL delivers projects safely and efficiently, helping to minimise disruption to road users while ensuring that new bridge decks meet the highest standards of durability and performance.
Projects
What our clients say
"CRL have been actively involved as a key collaborative partner in the St Annes Road bridge right from the outset. Through initial ECI back in 2021 from establishing buildability of the design and methodology for completing major reconstruction of a vital structure spanning the M67 SRN to design of temporary works. CRL have performed and executed all of the major concrete elements of the works including removal of significant volume of existing concrete by hydro demolition so that the rebar could be used in the modified abutment walls, construction of the abutment shelves with bearing plinths and the new concrete deck and stringcourses. The works have been delivered safely, ahead of programme and within the agreed budget"
Mangat Bansal | Programme Delivery Manager | National Highways
The works have been delivered safely and within budget
