Complex sentence: The bridge cost 63 billion forints (approx. US $300M) to build, and was officially opened on September 30,2008 however, the National Transport Authority of Hungary has only issued temporary permits because of disagreement among suburban cities surrounding the bridge.
Split into simpler sentences: The bridge cost 63 billion forints (approx. US $300M). It was officially opened on September 30,2008, however, the National Transport Authority of Hungary has only issued a temporary permission because of the disagreement of the suburban cities surrounding the bridge.