 Every year, between 25,700 (2008) and 40,600 (1990) ships with approx.24.4 (2009) to 30.9 (2000) million tonnes of goods pass through the locks in freight and cargo traffic.In 1987 the International Commission for the Protection of the Rhine (ICPR) has drawn up a programme of measures aimed, inter alia, at the reintroduction of salmon into the Rhine.