Gjemnessund Bridge

The Gjemnessund Bridge is a suspension bridge that crosses Gjemnessundet between Gjemnes on the mainland and Bergsoya in More og Romsdal county, Norway. 

Gjemnessund Bridge

Total length                 1257 metres

Longest span               623 metres

Vertical clearance       43 metres

Spans                           21

Opening date              1992 

It was built as part of the Krifast project, the mainland road connection of the city of Kristiansund.

Many bridges slowly deteriorate and need to be repaired because the salty seawater damages the concrete and the iron inside it. The Gjemnessund Bridge has had a problem with seabirds, whose manure contain salt and ammonia. The salt and ammonia damages the concrete. To prevent this, the bridge is cleaned, and the critical parts of the concrete are covered with an elastic membrane that protects the concrete against the manure and the harmful content.