Manning's Roughness

Manning Roughness app shows a comprehensive list of Manning's roughness coefficients or also known as n-values for different types of channels.

This will be useful for engineers, scientists, professors and even students that needs n-values to apply manning's equation in solving fluid flow problems in hydraulics.

Any request for n-values for specific materials can be post in a comment and I'll do my best to keep the app updated by incorporating the requests made.