Complex sentence: Due to the height of the bridge, it spans both Jewfish Creek and Lake Surprise, which allowed for the the removal of the man-make Lake Surprise Causeway restoring the natural water flow into Florida Bay.
Split into simpler sentences: Due to the height of the bridge, it spans both Jewfish Creek and Lake Surprise. The current bridge allowed for the the removal of the man-make Lake Surprise Causeway, which restored natural water flow into Florida Bay.