Larger floods may occur or the flood height may be increased by manmade or natural causes, such as ice jams and bridge openings restricted by debris.
(Larger floods; may occur; ) (the flood height; may be increased; by manmade or natural causes, such as ice jams and bridge openings) (bridge openings; restricted; by debris)
Larger floods the flood height bridge openings
may occur may be increased restricted
by manmade or natural causes, such as ice jams and bridge openings
by debris