Complex sentence: The narrow "Skarnsundet" is crossed by the Skarnsund Bridge; the part of the fjord to the north of the strait is referred to as "Beitstadfjord".
Split into simpler sentences: The narrow "Skarnsundet" is crossed by the Skarnsund Bridge. The part of the fjord to the north of the strait is referred to as "Beitstadfjord".