It is carried in solution so you can't see it but it is there and the water has a greater frce than griavity does on the silt/clay so that is how it stays up.
Silt.
silt
Silt and clay would be carried by suspension in streams or rivers.
If the river is moving slower than ~0.01 cm/sec, then clay may be found in the river bed. If it is slower than ~0.3 cm/sec, then silt may be found. Any faster and the clay and silt would be deposited at the mouth of the river where the velocity decreases greatly.
silt means mud or clay or small rocks doposited by a river or lake
silt means mud or clay or small rocks doposited by a river or lake
silt
The soil that is deposited by a river to form landforms such as river bars and river deltas is called silt. A river delta is the name of the landform that is created the mouth of a river.
silt
Silt
'Suspension' or as you cited in your question 'suspended load'. Fine materials can be suspended in the water and are carried away in such a method. These particles are too light to sink to the bottom of the fast moving river. Suspension load forms the largest part of the river load. Materials that can be suspended include silt, mud and clay.
silt (in ancient egypt anyway)