Design and Manufacture of 40m Span Footbridge in Northern Ireland

thumb_picture1Enniskillen in Northern Ireland was the location of one of Intaspan’s recent footbridge projects.

They were approached by WDR & RT Taggarts with the scheme which was initially a 33m span across the River Erne.

Intaspan provided a quotation which was of interest and a preliminary visit was made to the site. This site visit revealed certain difficulties with the preliminary design and Intaspan were asked to make modifications, which resulted in the span being increased to 40m, with a weight of 30 tonnes. The design chosen was a steel warren truss footbridge, with a hardwood deck and galvanised mesh infill parapets.

Intaspan were responsible for carrying out the design of the structure and producing the relevant design and check certificates. Fabrication and painting was carried out in the UK and the bridge transported to site in three pieces. A public car park close to the erection site was used to sub-assemble the bridge. The bridge was then lifted into position using a 400 tonne crane. When this had been completed it only remained to finish placing the timber decking and the mesh parapet panels and carry out final touch up painting. The entire operation took four days with Loch Erne closed to navigation for just four hours.