DESCRIPTION OF A BRIDGE ACROSS THE RIVER SHANNON AT PORTUMNA

T RHODES
1844 Minutes of the Proceedings of the Institution of Civil Engineers  
This paper describes a bridge which has been erected across the Portumna river Shannon a t Portumna, to form a communication between the BridF. counties of Galway and Tipperary, at the spot where a timber bridge formerly stood. The present structure is composed of straight cast-iron girders, resting upon piers formed of timber piles, leaving thirteen openings of 18 feet 6 inches span each, hetween the Tipperary shore and Hayes Island, and twelve openings of the same span, between the island and
more » ... ween the island and the outer pier of the swivel-bridge, which is 40 feet 6 inches
doi:10.1680/imotp.1844.24524 fatcat:3yjlr4lxjbg73nmggf3cqgqa3i