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Iowa NRCS Engineering Spreadsheets

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Iowa NRCS Engineering Spreadsheets

Name

Description

Download Program

Link Updated

IAPotential Impact Area.xls Provides elevation for the 'Quarter Point Method'. Not for use where a breach routing is needed to determine the potential hazard classification. XLSX (706 KB) 8/20
MMB_1520_1521_QuantityCalculations.xlsx Manufactured Mulch Blanket (MMB) Quantity Calculations for Grassed Waterways XLSX (203 KB) 4/20
IaPracticeBenefits.xlsx v1.02 Compute soil loss reduction and number of acres benefited, by the implementation of certain conservation practices XLSX (1 MB) 11/6/18
IADentrifyingBioreactor.xlsb v2.0 Compute size and detention time for a denitrifying bioreactor for subsurface ag drainage water XLS (525 KB) 3/21/18
IASaturatedBuffer.xlsb v2.0 Compute buffer length for a saturated buffer to treat 5% of subsurface drainage system capacity XLSB (2 MB) 1/2/18
IaLiDARComparison.xls v1.01 Compare surveyed points with LiDAR based points exported from AutoCAD Civil 3D XLS (6MB) 5/13/21
NRCS C3D Storage Computation.xlsx v1.11 Converts AutoCAD Civil 3D NRCS Stage Storage Computation Data into SITES, WinPond, and CSV Formats XLS (135 KB) 3/27/20
GIS Stage Storage Computation.xlsm v1.1 Converts ArcMap GIS Stage Storage Computation Data into SITES, WinPond, and CSV Formats XLSM (148 KB) 1/26/21
Blind Inlet Capacity Blind Inlet Hydraulic Capacity, Sizing, Quantities, and Cost Estimate XLSX (29 KB) 7/11/13
Trapezoidal Riprap-Lined Waterway Design.xlsm v1.02 Hydraulic design of trapezoidal riprap-lined waterway, for angular or rounded stone XLSM (96 KB) 3/4/13
Semicircular_Drop_Structure.xlsx v1.03 Hydraulic capacity computations for semicircular-inlet drop structure XLS (1.6 MB) 5/7/12
Tr9_7.xls TR9 Circular Concrete Tank,
Spreadsheet for Excel 7.0 
XLS (127 KB) 7/2/14
IA_LivestockPipeline.xls_v1.52 Livestock Watering System Pipeline Design XLS (2 MB) 1/29/21
Rock_Chute.xls v4.03 Rock Chute Design Program,
Spreadsheet for Excel XP version
XLS (1 MB) 12/1/11
IaDropInlet.xlsm
v1.10
Drop Inlet Pipe Flow Program,
Spreadsheet for Excel 
XLSM (161 KB) 12/21/17
IaHoodInlet.xlsm
v1.30
Hood Inlet Pipe Flow Program,
Spreadsheet for Excel 
XLSM (376 KB) 12/21/17
IaCulvertDesign.xlsm v1.0 Calculates flow capacity for circular culverts XLSM (2 MB) 12/21/17
WW FieldBook.xls v.1.3 Field Book for Data Import of Waterway Survey in Eagle Point Calc, for Excel XLS (390 KB) 4/12/10
IaDDiaphragm.xls
v.1.1
Drainage Diaphragm Size and Location calculations, Excel XLS (124 KB) 2/28/06
IaPlungePool.xls
v.1.2
Riprap lined Plunge Pool for Energy Dissipation from a Cantilever Pipe Outlet, Excel XLS (443 KB) 4/12/10
IATerraceCredit.xls Runoff Reduction Credit for Terraces, Spreadsheet for Excel XLS (50 KB) 1/23/08
IADesignReportWSdam.xls v1.02 Design report & documentation tool for watershed dams XLS (1.4 MB) 4/2/08
IaAntiSeepCollar.xls v1.1 Anti-seep Collar Computations for Closed Conduits XLS (99 KB) 5/18/17
IaRiserFlotation.xlsm v1.1 Compute Required Size of Concrete Base for CMP Riser to Prevent Flotation XLSM (46 KB) 9/4/18

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