ABSTRACT
ABSTRACT: The bridge structures for the Wolin bypass over the Dziwna Strait are presented in the paper. The by-pass carries the national road No 3 with 2-lane carriageway and hard shoulders. Wolin is a small historic town which could no longer bear the high volume of traffic on the national road going directly through the town. The bypass route followed the existing trunk railway line located on embankments along the northern historical outskirts of the town. Therefore, no other embankments for the road bypass were permitted and the flyovers were used along the town area in the accepted feasibility design. Alongside the town, the road was located on multi-span viaducts with four girders decks in prestressed concrete or steel-concrete composite. For the largest navigable span, a tied arch of the Nielsen type was developed with span 165 m long. Total length of the bridge structures in the by-pass is 1.1 km.
