Complex sentence: The Tees Barrage is a barrage across the River Tees in the borough of Stockton-on-Tees in North East of England used to control the flow of the river, preventing flooding and the effect of tidal change.
Split into simpler sentences: The Tees Barrage is a barrage across the River Tees in the borough of Stockton-on-Tees in North East of England. It is used to control the flow of the river, preventing flooding and the effect of tidal change.