The project has been in the planning stage for several years, and of several options under discussion, one has been chosen as the favoured one. The selected option is a bridge over
Bjørnafjorden. This fjord is very deep and would require a
floating bridge of world record length, around 5 km(3 mi), allowing ship traffic under. It would be an advanced and fairly rarely used technology, a much bigger version of the
Nordhordland Bridge. In 2019 the project was estimated to cost about . This option would give the shortest driving distance. The other options considered were via
Austevoll Municipality, but it is the most expensive as it requires two long and deep tunnels, both similar to
Rogfast. Other options would route the road through
Tysnes Municipality (with ferry) or
Bjørnafjorden Municipality (a long floating bridge, a detour, no ferry). ==References==