Key:NSIW

NSIW (Navigation standard of inland waterway) is a classification for Chinese inland waterways:

Classification

NSIW-Class	Tonnage (t)	min. Depth (m)	Width of the straight section (m)	min. Height (m)
			Double line
I	3000	3.5-4.0	250	18
II	2000	2.6-3.0	190	10
III	1000	2.0-2.4	110	10
IV	500	1.6-1.9	90	8
V	300	1.3-1.6	70	8
VI	100	1.0-1.2	30	4.5
VII	50	0.7-0.9	24	3.5

Navigability

Inland waterways are  navigable if one of theses tags are used :

• NSIW=*
• motorboat=yes

Navigable waterways are rendered in dark green on the openriverboatmap map.

An other example: European Navigable Waterways

See also

• Inland navigation
• ship=*
• boat=*
• motorboat=*
• CEMT=*
• route=waterway - A signed navigable waterway (for motorboats and ships)
• route=motorboat - A recreational route specifically signed for motorboats (and not signed for other boats such as canoes)
• route=canoe - A signed route for canoes, kayaks, or other paddle craft.
• Whitewater sports
• JOSM-style-snippet