Edexcel the natural environment paperWatch
It has natural levees/embankments, flood plains and land-use zoning and the iconic thing about it was that it has been channelised back in the 1730s for shipping and preventing flood damage to nearby towns.
There is also a river in Bangladesh which has been managed and you could also do a case study on the River Thames
>Embankment, a hard engineering technique in 2002- land was raised 10m at Weedon to store water behind in times of a flood
>Flood warning system, a soft engineering technique in 2003- in Far Cotton area, there's 2 hours notice given before a flood
>Washland, a soft engineering technique in 2007- in the Upton area with storage for 1.2 million cubic metres of water during times of flood
>The major roads such as the A45 was protected by a 6m embankment and the railway station at Foot Meadow was protected by a 4m high flood wall.
Hope this helped