Stokes Bridge, Ramsey St Marys

About the project

Danaher & Walsh was appointed by Skanska (now Milestone Infrastructure) to carry out major maintenance works to Stokes Bridge, near Ramsey St Marys, on behalf of Cambridgeshire County Council.

Key details

Client
Skanska
Project value
£325k
Date
Jan - Feb 2021

Key aims and challenges

Stokes Bridge carries the B660 Holme Road across the River Nene (Old Course). 

The existing plain concrete parapets were deemed substandard in terms of structure, and had evidence of delamination and severe cracking. Records revealed that the parapets were only resting on top of the structure, without any reinforcement or other positive connection to the deck.

The project involved the removal of the failing parapets and installation of a new solution.

It was decided to install an N2 steel vehicle parapet mounted near to the edge of the carriageway, as well as a new pedestrian parapet alongside the edge of the deck. These were both mounted on a new fibre reinforced concrete base. In addition, damaged areas of the concrete abutments and wing walls were repaired.

Temporary works included a scaffolding installation and the use of pontoons in the river. Works were undertaken during a period in which the river was closed to navigation. Traffic flow was maintained over the bridge by using a traffic management installation with two-way temporary traffic signals.