CPD-88a Watershed Analysis Tool, HEC-WAT, Quick Start Guide

2025.  This Hydrologic Engineering Center (HEC) documentation was developed with U.S. Federal Government resources and is therefore in the public domain. It may be used, copied, distributed, or redistributed freely.  However, it is requested that HEC be given appropriate acknowledgment in any subsequent use of this work.

Use of the software described by this document is controlled by certain terms and conditions.  The user must acknowledge and agree to be bound by the terms and conditions of usage before the software can be installed or used. For reference, a copy of the terms and conditions of usage are included in the Terms and Conditions for Use webpage of our internet site, so that they may be examined before obtaining the software.  The software described by this document can be downloaded for free from our internet site (www.hec.usace.army.mil).

HEC cannot provide technical support for this software to non-USACE users; therefore, non-USACE individuals and organizations should use any internet search engine to locate a vendor that can provide support for the HEC software of interest. However, HEC will respond to all documented instances of program errors. Documented errors are bugs in the software due to programming mistakes not model problems due to user-entered data.

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