EMS recently undertook a series of Hazardous Materials Survey’s for Herefordshire Council including Storesbrook Bridge in North Herefordshire.
Herefordshire Council are currently implementing plans to replace four bridges in Hereford as they have come to the end of their lifespan. The bridges are steel lattice single span structures which were patented in the 19th Century by architect Ithiel Town and are also sometimes called Town Lattice Trusses. A lattice bridge is a form of truss bridge that uses a large number of small and closely spaced diagonal elements that form a lattice.
All of the bridges were listed in Herefordshire Council’s Productivity Works 2017. The bridges themselves all outlined for detailed design for the replacement of the decks that are nearing the end of their lives.
Storesbrook Bridge – This bridge is situated on the B4214 near Ledbury and has experienced a steady decline in condition to the point where the primary deck of the structure would no longer be able to carry traffic in 2019
Buckton Bridge – Buckton bridge is situated in North Herefordshire in the hamlets of Buckton and Coxall. The Buckton Bridge crosses over the River Teme. The medieval crossing was rebuilt in its present format in 1805.
Kinsham Bridge – Kinsham was also originally a Medieval bridge crossing, rebuilt in 1823. Kinsham lies on the River Lugg near to the Welsh borders and near the town of Presteigne.
Parsons Pole Bridge –Brampton Bryan in North Herefordshire is close to the Shropshire, Welsh Borders. It lies midway between Leintwardine and Kington on the A4113. The bridge is thought to be post medieval with its last major repair works taking place in 1820 which resulted in the bridge looking as it does today.
The world is a different place in 2019 and our knowledge of materials that have the potential to cause harm and our approach to risk is much changed from 19th century engineering and building practices.
Herefordshire Council appointed contractor Balfour Beatty Living Places who are leading the design process. A part of their responsibility they are considering all the risks associated with the project, this includes the materials used in the original construction or introduced subsequently as part of ongoing maintenance.
EMS’s Director, Jamie Perkins-Best, has a history in highway design and construction materials as well his more current discipline in Asbestos. Jamie was therefore an obvious choice to consult on the project. Following an initial meeting three main areas of concern were raised – Asbestos, Lead containing paints and tar bound macadams.