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The StreamStats Program


Beta version 4 has arrived!

Beta version 4 is now available for most states on a trial basis, and version 3 remains available. Beta version 4 provides a single user interface (at for all states that are implemented, rather than separate applications for each state, as in versions 2 and 3, and the user interface is more user friendly than previous versions. Limited beta version 4 documentation can be accessed by clicking on the Help button in the user interface. Also, information for user-selected ungaged sites currently cannot be obtained for the Arkansas, Arizona, Georgia, Iowa, Indiana, North Carolina, Oregon, South Carolina, Tennessee, and Washington because of unique functionality for those states that is not yet implemented. Users are encouraged to provide comments and report bugs by use of the Help button on the interface. See the StreamStats home page for a description of the differences in capabilities between version 3 and beta version 4.

Please help us conserve our server system resources by closing the Interactive Map window when you are finished using it. Doing to will help ensure system availablility for all users. Thank you. Please contact the StreamStats by email at if you have any questions.

The report below documents the regression equations available in StreamStats for Delaware, the methods used to develop the equations and to measure the basin characteristics used in the equations, references to GIS data layers used in the analysis, and the errors associated with the estimates obtained from the equations. Users should familiarize themselves with this report before using StreamStats to obtain estimates of streamflow statistics for ungaged sites.


Interactive Map


General information on the Interactive Map application, as well as specific sources and computation methods for basin characteristics are available here.

StreamStats for Delaware was developed in cooperation with the Delaware Geological Survey and the Delaware Department of Transportation.

Link to the Delaware Geological Survey
Link to the Delaware Department of Transportation

Contact Us if you experience any problems with this application.



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