Spreadsheet: 25ba110d-a4f4-43ed-bac3-361a6a78d7d7
Sheet: Sheet1

Unnamed: 0 | Instructions: Using RUSLE2 For Designing Filter Strips To Meet The 10 Year Life-Span | Unnamed: 2 | Unnamed: 3 | Unnamed: 4 | Unnamed: 5 | Unnamed: 6 | Unnamed: 7
 | Acknowledgement: This workbook has been edited for Vermont NRCS and is based on a worksheet created by [NAME] (NRCS National Agronomist).
 | Using RUSLE2 to design and estimate sediment removal from a Vegetated Filter Strip (VFS):
 | The following information will be determined and entered into the 'VFS Sediment Design' worksheets:
 | (Steps 1-4)
 | 1. Sediment delivery to the upper edge of the VFS from the 'contributing area' - calculated by RUSLE2
 | using 'overland flow slope length'.
 | 2: The contributing area in acres.
 | 3. The  area (acres) of the planned VFS.
 | 4. Sediment leaving the VFS - calculated by [NAME].
 | Overland Flow Slope Length' will be calculated using [NAME].  The 'Overland Flow Slope Length' is defined as the slope length from the point of origin of flow to the point where the slope enters concentrated flow or the upper edge of a VFS. Note: This differs from the slope length used for conservation planning which is the length from origin of flow to either concentrated flow or deposition. Slope lengths used for conservation planning purposes are usually shorter.                                                                                                                                         For more information regarding 'Overland Flow Slope Length', refer to Agronomy Technical Note No. 2.
 | In RUSLE2, Load Advanced Template:
 | Load an appropriate RUSLE2 template which provides options to segment slopes, soil types, or managements within the 'Overland Flow Slope Length'.  VT NRCS recommends the 'NRCS advanced SCI.xml template for this purpose.  Use the following procedure to load the template:
 | In [NAME], from the top menu, select:                                                                                                                Options, Template, Load |  |  |  |  | Select 'NRCS advanced SCI xxxxxx.xml'                                                                                                                Select 'Open'.
 | Open the Profile View of the Advanced Template (select the 'Open Profile' button).
 | Select the default (or another, if applicable) profile file.
 | Using the tabs at the bottom of the profile data entry view, enter all applicable information for calculating soil loss including: Soils, Topography, Management, Contouring.  Add other data as applicable ([NAME]/barriers, Diversion/terrace, etc).
 | Add Segments, as applicable, for Soils, Topography and Management.  The example below shows one soil type, two managements (a 25 foot wide filter strip area and the upland contributing area in a 4 year corn, 4 year hay/legume rotation), and three changes in topography for the entire 'Overland Flow Slope Length',   Make sure to specify the correct segment length for each segment.
 | Note: A minimum of two segments must be created for Management, one for the upland or contributing area, and one to represent the permanent vegetation within the planned vegetated filter strip.
 | Profile Figure 1 shows two segments of field management (filter strip and the contributing upland area) as well as field 'contouring' management to be applied to an example field.
 | Profile Figure 1.
 |  |  |  |  |  |  | Profile Figure 2 shows three segments which represent changes in slope and slope length over the 'Overland Flow Slope Length'
 |  |  |  |  |  |  | Profile Figure 2.
 |  |  |  |  |  |  | Profile Figure 3 shows the Advanced template representation of all segments (Management, Soils, Topography) for the entire 'Overland Flow Slope Length'
 |  |  |  |  |  |  | Profile Figure 3.
 | From the Management tab, find the sediment delivery (t/ac/yr) results.  In the example below, 3.6 tons of sediment per year is estimated to be entering the filter strip from segment 1 (upland contributing area) and 0.65 tons/acre/year of sediment is estimated to be leaving the filter strip (segment 2).
 | Profile Figure 4.
 | Enter Data From the RUSLE2 results into (one of) the 'VFS_Sediment Design' worksheet(s).
 | 1- Enter the Sediment delivery result for the segment directly upslope of the filter strip into the yellow cell for Step 1 on the 'VFS_Sediment Design' worksheet.
 | 2- Determine the acreage of the area contributing sediment to the filter strip (using GIS or other approved measuring techniques); enter the acres into the yellow cell for Step 2 on the 'VFS_Sediment Design' worksheet.
 | 3- Determine the acreage of the planned filter strip; enter the acres into the yellow cell for Step 3 on the 'VFS_Sediment Design' worksheet.
 | 4- Enter the Sediment delivery result for the filter strip into the yellow cell for Step 4 on the 'VFS_Sediment Design' worksheet.
 | VFS_Sediment Design Figure 1 |  |  |  |  | All blue cells in the 'VFS_Sediment Design' worksheets are automatically calculated based on entries in steps 1 through 4.  In order for the filter strip design to be valid, the result in the 'Meets 10 yr Life Span' cell must be YES.