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Hydrology, Hydraulics, and Wetland Resources

Notice – The following spreadsheets, computer programs and supporting documentation are tools to assist with typical hydrologic or hydraulic calculations or wetland hydrologic evaluations.  The engineering practitioner must understand the assumptions and calculations contained in these tools and is responsible for their appropriate use.  Some of the spreadsheets contain macros. 

Many additional engineering spreadsheets are available in the Wisconsin Engineering Spreadsheets section.


NRCS Wisconsin Hydrology Resources:

 Retrieving Hydrologic Soil Group Data from NRCS Web Soil Survey

Information about NOAA Atlas 14 Precipitation Data Updates for Wisconsin

NRCS WI Spreadsheets that still use the old EFH-2 version 1.1.2 computer algorithm with unit peak             discharge curves.

NRCS National Hydrology Resources:

EFH-2 Peak Discharge Determination Computer Program

WinTR-55 Watershed Hydrology Computer Program

WinTR-20 Watershed Hydrology Computer Program 



NRCS Wisconsin Hydraulics Resources:
NRCS National Hydraulics Resources:

Wetland Resources

NRCS Wisconsin Wetland Resources:

Precipitation Evaluation (Wet, Dry & Normal) Spreadsheets

Information about NOAA Atlas 14 Precipitation Updates See "Hydrology" Section above.

NRCS National Wetland Resources:


For more Information email: