On-Line Absolute Roughness Height Database
Select Channel Description
Carbon Steel (New)
Carbon Steel (Slightly Corroded)
Copper, Lead, Brass, Aluminum (new)
PVC and plastic pipe
Flexible Rubber Tubing - Smooth
Stainless Steel (new)
Steel Commercial Pipe
Welded Steel
Carbon Steel (Moderately Corroded)
Carbon Steel (Badly Corroded)
Asphalted Cast Iron
New Cast Iron
Worn Cast Iron
Rusty Cast Iron
Galvanized Iron
Wood Stave
Wood Stave, Used
Smoothed Cement
Ordinary Concrete
Concrete - Rough, Form Marks