Hydrology and Hydraulics Training Material

Hydrology and Hydraulic Technical Resources
Engineering handbook and more.

USDA has a long-term partnership with the PRISM Climate Group at Oregon State University. PRISM is a technique that uses point data in conjunction with a digital elevation model to create gridded datasets of precipitation and temperature for the U.S.

Procedure to Estimate the Response of Aquatic Systems to Changes in Phosphorus and Nitrogen Inputs
Provides a simple tool to estimate waterbody sensitivity to nutrients. Useable by field conservationists, partners, and landowners with little prior educational background

BASINS (Better Assessment Science Integrating point & Non-point Sources) with Climate Assessment Tool (CAT) Add In
BASINS is a multi-purpose environmental analysis system that integrates geographical information system (GIS), watershed data, and environmental assessment and modeling tools into one convenient package. BASINS CAT provides flexible capabilities for creating climate change scenarios. BASINS CAT can be used to assess the coupled effects of climate and land-use change, and to guide the development of effective management responses. 

Financing Alternatives Comparison Tool (FACT)
FACT is a financial analysis tool that helps municipalities, utilities, and environmental organizations identify the most cost-effective method to fund a wastewater or drinking water management project. FACT produces a comprehensive analysis that compares financing options for these projects by incorporating financing, regulatory, and other important costs.

National Stormwater Calculator
EPA’s National Stormwater Calculator is a desktop application that estimates the annual amount of rainwater and frequency of runoff from a specific site anywhere in the United States (including Puerto Rico). Estimates are based on local soil conditions, land cover, and historic rainfall records.It is designed to be used by anyone interested in reducing runoff from a property, including site developers, landscape architects, urban planners, and homeowners. 

The Calculator accesses several national databases that provide soil, topography, rainfall, and evaporation information for the chosen site. The user supplies information about the site’s land cover and selects the types of low impact development (LID) controls they would like to use. The LID controls that the user can choose are the following seven green infrastructure practices: disconnection; rain harvesting; rain gardens; green roofs; street planters; infiltration basins; and porous pavement.

Rainfall Erosivity Factor Calculator
The Rainfall Erosivity Factor Calculator determines if small construction projects can obtain a waiver from National Pollution Discharge Elimination System stormwater permitting.

Recovery Potential Screening Tools
RPS tools are designed for watershed comparison and priority setting. Statewide RPS Tools were developed for each of the lower 48 states and first issued in 2014. These Tools contain 200+ embedded indicators for all HUC12s that are wholly or partially within the state’s boundary. Many of the indicators are landscape characteristics derived from common GIS datasets, but other attributes such as selected impairment-specific data derived from field monitoring, are also included.

Spreadsheet Tool for Estimating Pollutant Load (STEPL)
STEPL employs simple algorithms to calculate nutrient and sediment loads from different land uses and the load reductions that would result from the implementation of various best management practices (BMPs).

The StreamCat Dataset provides summaries of natural and anthropogenic landscape features for ~2.65 million streams, and their associated catchments, within the conterminous USA. 

Storm Water Management Model (SWMM) with Climate Assessment Tool (CAT) Add In
SWMM is a dynamic hydrology-hydraulic water quality simulation model used for single event or long-term simulation of runoff quantity and quality from primarily urban areas. Users can include any combination of low impact development (LID)/green infrastructure controls to determine their effectiveness in managing stormwater. SWMM includes a climate adjustment tool (SWMM-CAT), which is a simple to use software that applies monthly climate adjustment factors onto precipitation and temperature data.  

Surface Water Models
The EPA Center for Exposure Assessment Modeling (CEAM) distributes simulation models and database software designed to quantify movement and concentration of contaminants in lakes, streams, estuaries, and marine environments. This site provides access to watershed modeling tools such as Better Assessment Science Indicating Point and Nonpoint Sources (BASINS)Storm Water Management Model (SWMM) and Water Quality Analysis Simulation Program (WASP).

Water Budget Data Finder
Irrigation professionals using the WaterSense Landscape Water Budget Tool may use the Water Budget Data Finder to determine peak watering month and the appropriate evapotranspiration and rainfall values for a specific United States zip code.

Water Contaminant Information Tool (WCIT)
WCIT is used by the water sector to prepare for, respond to or recover from drinking water and wastewater contamination incidents. WCIT includes comprehensive information about contaminants that could be introduced into a water system following a natural disaster, vandalism, accident or act or terrorism. There are currently over 800 priority contaminants of concern listed in WCIT.

Aquarius is a computer model devoted to the temporal and spatial allocation of water among competing uses in a river basin.

Bedload Assessment in Gravel-bedded Streams (BAGS)
BAGS is a spreadsheet-based program that predicts bed load transport using six well-known bed load transport equations developed specifically for gravel-bed rivers. A companion document 'Sediment Transport Primer Estimating Bed-Material Transport in Gravel-bed Rivers' is also available. 

Computational Design Tool for Evaluating the Stability of Large Wood Structures
Large logs are often placed in streams to benefit aquatic and riparian-dependent fish and wildlife as a part of stream restoration projects. When specifying the type of large wood structure to be used, restoration practitioners, planners, and local residents need to be assured that the constructed structures will likely remain in place under the expected conditions. To assist these professionals, this Excel spreadsheet tool was developed that applies computational equations and design guidelines to analyze virtually any proposed configuration of small-to-medium size structures.

This software is intended to assist engineers, hydrologists, and fish biologists in the evaluation and design of culverts for fish passage. It is free and available for download.

i-Tree and i-Tree Hydro
iTree is a software suite from the USDA Forest Service that provides urban and rural forestry analysis and benefits assessment tools. The i-Tree Tools quantify the structure of trees and forests, and the environmental services that trees provide. Information regarding i-Tree workshops are available here

i-Tree Hydro is designed for users interested in watershed scale analyses of vegetation and impervious cover effects on hydrology. i-Tree Hydro simulates the effects of changes in tree and impervious cover characteristics within a defined watershed on stream flow and water quality. It was designed specifically to handle urban vegetation effects so urban natural resource managers and urban planners can quantify the impacts of changes in tree and impervious cover on local hydrology to aid in management and planning decisions.

logPearson Frequency Analysis Spreadsheet for Analyses of Streamgage Records
Engineering projects along stream corridors require flow frequency estimates for their designs. Where sufficient streamgage data are available, the likely best method for developing flow frequency relationships are from statistical analyses of streamgage data. The standard procedure for developing these estimates use the logPearson frequency analysis. This spreadsheet tool was developed to implement this analysis procedure. 

National Stream and Aquatic Ecology Center
The focus of the National Stream and Aquatic Ecology Center is on developing tools and science applications for the more effective management and conservation of watersheds, streams, riparian ecosystems, fisheries and aquatic ecosystems on National Forests and Grasslands. The Center's focus is on environmental flows and water resource management, watershed, stream, riparian, and aquatic habitat restoration, condition, trend, and effectiveness monitoring of watershed, channel, aquatic habitat, and riparian vegetation, technology development, transfer and application, and technical Support and Training.

Size-Class Pebble Count Analyzer
This Excel 2000 spreadsheet was developed in 2001 to assist with the analysis of pebble count data tallied by size class. The spreadsheet helps users estimate sample size, enter field data tallied by size class, produce tables and graphs, and perform statistical analysis using contingency tables and the Pearson chi-squared statistic. After downloading, to execute the spreadsheet users must select "Enable Macros" for the spreadsheet to function properly.

Wildcat5 for Windows, A Rainfall-Runoff Hydrograph Model
Wildcat5 is an Excel based tool designed to assist watershed specialists in analyzing rainfall runoff events to predict peak flow and runoff volumes generated by single-event rainstorms for a variety of watershed soil and vegetation conditions.  The model is intended for small catchments responsive to conditions of upland soils and cover. 

Actual Evapotranspiration Modeling
This project applies evapotranspiration remote sensing at two scales, 1) across the full landscape at 1000 m MODIS resolution (as a component of the water budget to support water availability studies, and 2) on agricultural lands at 100 m Landsat resolution (for estimating crop water use). Actual ET (ETa) is produced using the operational Simplified Surface Energy Balance (SSEBop) model (Senay and others, 2013) for the period 2000 to present. 

Actual Evapotranspiration attributed to 12-digit Hydrologic Unit Code Watersheds data is available here

DayMet Precipitation Attributed to 12-digit Hydrologic Unit Code Watersheds
Daymet is a collection of algorithms and computer software designed to interpolate and extrapolate from daily meteorological observations to produce gridded estimates of daily weather parameters. Weather parameters generated include daily surfaces of minimum and maximum temperature, precipitation, humidity, and radiation produced on a 1 km x 1 km gridded surface over the conterminous United States, Mexico, and Southern Canada.

Modeling of Surface Water Quality
SPARROW is a modeling tool for the regional interpretation of water-quality monitoring data. The model relates in-stream water-quality measurements to spatially referenced characteristics of watersheds, including contaminant sources and factors influencing terrestrial and aquatic transport. SPARROW empirically estimates the origin and fate of contaminants in river networks and quantifies uncertainties in model predictions.

National Water Quality Assessment Program (NAWQA)
NAWQA is a USGS database that can help you answer three questions: 1) What is the condition of our Nation's streams, rivers, and ground water? 2) How are these conditions changing over time? 3) How do natural features and human activities affect these conditions, and where are those effects most pronounced?

Reservoir Sedimentation Database
This federal agency database is a work in progress and is maintained by USGS. 

Simplified Surface Energy Balance Actual Evapotranspiration Data
Actual Evapotranspiration is produced using the operational Simplified Surface Energy Balance (SSEBop) model for the period 2000 to present. The SSEBop setup is based on the Simplified Surface Energy Balance (SSEB) approach with unique parameterization for operational applications. 

Water Availability Tool for Environmental Resources (WATER) - Kentucky
WATER was developed to provide a method of estimating streamflow, water availability, and other hydrologic information in un-gaged Kentucky basins. WATER incorporates and processes geospatial data to quantitatively describe topography, soil-water storage, climate, streamflow, and other parameters. WATER is also designed so that it can be expanded for other science and regulatory applications including, but not limited to, sediment and nutrient loads, evaluation of surface mining effects (Cumulative Hydrologic Impact Assessments), as well as flows that are necessary for ecological viability. 

Water Resources Applications Software
The USGS software and related documentation on these Web pages can be used, copied, modified, and distributed without any fee or cost. Includes software applicable to water quality and chemistry, groundwater, surface water, and more. 

Abandoned Mine Land Reclamation Program Website
The Abandoned Mine Land Reclamation Program is OSMRE’s largest program. Since 1977, the AML program has collected over $10.5 billion in fees from present-day coal production and distributed more than $8.0 billion in grants to states and tribes, mandatory distributions to the United Mine Workers of America (UMWA) retiree health and pension plans and to OSMRE’s operation of the national program to reclaim land and waters damaged by coal mining. 

AMDTreat is a computer application for estimating abatement costs for acid mine drainage. 

Technical Innovation and Professional Services - Current Software List
This website provides links to a variety of softwares that can aid in water related mine reclamation work. Softwares are available relating to acid mine drainage, groundwater, well testing, water storage, and more. 

State Resources - KENTUCKY

Flood Risk Map
This allows users to view floodplains throughout KY. In selected counties, users can download floodplain models used to estimate floodplain elevations. 

Kentucky Nutrient Model
The Kentucky Nutrient Model (KYNM) was developed in 2014 to provide the Kentucky Division of Water (KDOW) with a simplified tool for use in developing nutrient based TMDLs and in evaluating different nutrient management strategies. This webpage offers more information and links visitors to the Kentucky Nutrient Model Report and a Kentucky Nutrient Model Calibration Tutorial.

Publications and Map Catalogue
Publications and maps from the KY Geological Survey. 

Maps and GIS Data
This webpage links visitors to KSNPC spatial datasets and maps. Resources include blackside dace streams GIS data, a Habitat Characterization Model for Federally Listed Plants in Kentucky map, a priority watersheds for conserving imperiled mussels and fish map, and a pre-settlement / present day land cover comparison map of Kentucky.  

State Resources - TENNESSEE

Permanent Stormwater Management and Design Guidance Manual
This manual was created to assist in the design, installation and maintenance of post-construction (permanent) stormwater management practices. The Tennessee Runoff Reduction Assessment Tool (RRAT) software was developed as a complement to the guidance manual, giving practitioners a logical and easy to use tool for designing permanent stormwater management systems.

TN Runoff Reduction Assessment Tool
The Tennessee Runoff Reduction Assessment Tool (TNRRAT) was designed to help engineers, landscape architects, and other designers to create successful permanent stormwater management designs that protect water quality and meet the Tennessee MS4 Permanent Stormwater Permit requirements. This webpage offers additional information about the tool including a TNRRAT description document and a video tutorial series

Tool for Assessing the Capacity of Local Watershed Partnerships to Produce Lasting Effects (2010)
The goals of this research were to 1) consult the literature concerned with partnership characteristics that lead to lasting watershed recovery, or sustainable water vi management 2) develop an assessment tool, based on the dominant themes found in the sustainable water management literature, and 3) test the tool on a mature local watershed partnership for future revision. The assessment tool that resulted from this research consists of two items: 1) a self-assessment survey concerned with structural and process elements of a partnership that lead to lasting watershed efforts, and 2) a survey guide that assists watershed management practitioners in understanding survey relevance and exploring their own structures and processes for improvement. These products were then tested and reviewed, which resulted in survey and survey guide revisions, and ultimately a practical and useful watershed partnership assessment tool.

Municipal Resources

Stormwater Management Manual
The 2016 Stormwater Management Manual has been compiled by the City of Franklin to assist planners, developers, contractors and various businesses and industries and the City of Franklin in stormwater pollution prevention and water quality protection. Specific sections of the manual include: 1) Policies & Procedures; 2) Construction Management Practices; 3) Temporary Construction Site Runoff Management Practices; 4) Permanent Erosion Prevention & Sediment Controls; 5) Permanent Stormwater Treatment Controls; 6) Industrial & Commercial Runoff Management Practices; and 7) Other Source Controls. In addition to the manual itself, this page includes an interactive map of active construction sites, a land-use based water quality calculation tool for developers, the state's urban riparian buffer handbook, information about post construction & maintenance measures, and more.

Stormwater Management Manual Volume 2 - Procedures
This volume from Nashville's Stormwater Management Manual provides a compilation of readily available literature relevant to stormwater management activities in Nashville and Davidson County. Topics covered include hydrology, hydraulics (including gutter, inlet, culvert, storm sewer hydraulics, bridge, and detention/retention hydraulics), erosion and sediment control, outlet protection, data collection, computer programs, and stormwater pollution prevention programs. An additional Volume 3 of the Stormwater Management Manual provides a theoretical supplement to the technical guidelines and procedures presented in this Procedures volume. 

Stormwater Management Manual Volume 5 - Low Impact Development
The Low Impact Development (LID) Manual is a site design approach that utilizes Green Infrastructure to meet a development site’s post development stormwater runoff water quality requirements. This approach satisfies the new MS4 Permit requirement to infiltrate, evapotranspire, or harvest and use the first inch of rain. Topics covered include: BioretentionUrban BioretentionPermeable PavementInfiltrationWater Quality SwalesExtended Detention PondsDownspout DisconnectionGrass ChannelsSheet FlowReforestationCisterns, and Green Roofs. Additional LID resources and information are available through Metro on this webpage, including a table of incentives for Green Infrastructure, an LID Site Design Tool, and a cistern design tool. Metro also offers this LID Manual Training Video to introduce manual methodology and describe how to build a site according to the manual, manual training slides, and an interactive map of LID sites in Metro Nashville. 


Stormwater Model
The stormwater model allows children to learn about how urban development, if not properly managed, can contribute to flooding.  The Compact provides demonstrations of this interactive, kid-friendly model at many of our annual events, and also provides demonstrations throughout the summer in Cumberland Park.

Sugartree Creek Restoration
The Cumberland River Compact and its partners, Metro Water Services and the Nature Conservancy, Tennessee Chapter are working in Sugartree Creek to establish a model for urban stream mediation. The goal of our project is to implement newly designed EPA software that determines optimum locations for water quality projects and apply this to Sugartree Creek.

The EnviroScape is a watershed model and interactive learning tool where students learn about non-point source pollution. Using it, HRWA demonstrates the way their activities on land, like littering or not picking up after theirdog, can harm the water quality.