| BSC | Base Soil Category |
| CE | Continuing Erosion |
| CEF | Continuing Erosion Filter |
| CPD | Computer Program Document |
| EE | Excessive Erosion |
| FC | Fines Content |
| FEMA | Federal Emergency Management Agency |
| fm | Fine-to-Medium |
| HEC | Hydrologic Engineering Center |
| HW | Headwater |
| IWR | Institute for Water Resources |
| JOS | Joint Opening Size |
| NAVD88 | North American Vertical Datum of 1988 |
| NE | No Erosion |
| NEF | No Erosion Filter |
| NGVD29 | National Geodetic Vertical Datum of 1929 |
| NRCS | Natural Resources Conservation Service |
| QC | Quality Control |
| RMC | Risk Management Center |
| SE | Some Erosion |
| UDF | User-Defined Function |
| UNSW | University of New South Wales |
| U.S. | United States |
| USACE | United States Army Corps of Engineers |
| USBR | United States Bureau of Reclamation |
| USDA | United States Department of Agriculture |
