The source is Le Nouvion-en-Thiérache and the mouth is Meuse (Belgium).
Navigation on the Sambre starts at Landrecies (France) and ends at Namur (Belgium).
The Sambre is 190 kilometres long (118.06 miles) with a total of 148 kilometres of navigable waterway.
There is a total of 31 locks, with an average of 1 lock every 4.77 kilometres (2.97 miles).
The highest altitude of the Sambre is 199 metres (652′ 11″ ft) above sea level.
The water draft is 1.6 metres (3′ 3″ ft) and the air draft is 3.7 metres (9′ 10″ ft).
There are "Freycinet" lock types.
Lock length 39 metres (127′ 11″ ft)
Lock width 5.2 metres (16′ 5″ ft)