 The Minister for Land and Works had approved work on raising it in 1939 , but this was postponed indefinitely due to World War II . Raising or renewal of the bridge was again being investigated in 1946 . The river again flooded over the bridge in July 1952 , the first time since the mid @-@ 1940s , and the timber deck was still being repaired into 1953 . The last and latest bridge was constructed as part of a bypass of the centre of Hadspen . By 1978 , the Bass Highway crossed the river further upstream and the old main road was no longer a through road . This bridge is a 240 metres ( 790 ft ) long two @-@ lane single @-@ carriageway concrete structure . 
