In October 1964, Orrje & Co presented a plan for the traffic route that took into consideration what traffic capacity the bridge would need to have in 1980, which was estimated at more than 40,000 cars per day.
Året därpå presenterade Orrje & Co trafikledsplanen som tog höjd för vilken trafikkapacitet bron skulle behöva ha år 1980, vilket uppskattades till mer än 40 000 bilar per dygn.