| Confined with Low Erosion Potential |
| Moderately Confined with Low Erosion Potential |
| Confined with Moderate Erosion Potential |
| Confined with High Erosion Potential |
| Moderately Confined with Moderate Erosion Potential |
| Unconfined with Low Erosion Potential |
| Moderately Confined with High Erosion Potential |
| Unconfined with Moderate Erosion Potential |
| Unconfined with High Erosion Potential |