1, 0, 1.4, bimodal_scour, 0
2, 1.4, 1.7, sandy_gravel, 0
3, 1.7, 3.1, bimodal_scour, 0
4, 3.1, 3.6, gg_scour, 0
5, 3.6, 4.0, bimodal_scour, 0
6, 4.0, 4.9, sandy_gravel, 0
7, 4.9, 5.4, bimodal_scour, 0
8, 5.4, 5.9, gg_scour, 0
9, 5.9, 6.1, sandy_gravel, 0
10, 6.1, 7.0, gg_scour, 0  