1990 ââ¬â an automatic gate called a tilting weir which lies on the lock bed was installed by the National Rivers Authority to control river levels during the winter floods1991 ââ¬â the oak gates and lintels above the concrete lock were replaced by the River Stour Trust2014 - the oak gates had rotted and were replaced with a hard wood from South America called ekke - by Martin Childs Ltd, working for the River Stour Trust. The oak lintels were in tact and remained in place