The UB190 Bann Bridge Coleraine carries a single track for approximately 240m over the River Bann on the Coleraine to Derry ~ Londonderry line section. It was constructed in the early 1920’s and has 11 No. spans, one of which is a lifting bascule type to allow the passage of shipping to the Coleraine Port.
Works to the Bann Bridge will include:
Surveying the existing structure to determine the size of plates, stiffeners, bearing components and works to the top of the piers.
Fabrication and installation of new stiffeners and plates.
Removal of the existing bearings.
Design of the temporary jacking of the existing superstructure.
Design of the temporary horizontal bracing of the superstructure.
Design, fabrication and installation of the bearings.
Removal and reapplication of paint system local to the works.
Monitoring of girder and track positions during works.