• Definitions

Privacy & Security

This website is provided as a public service by the U.S. Army Corps of Engineers, Institute for Water Resources, Navigation Data Center and Public Affairs.

Information presented on this website is considered public information and may be distributed or copied unless otherwise specified. Use of appropriate byline/photo/image credits is requested.

Privacy Notice: If you choose to provide us with personal information - like filling out a Contact Us form with e-mail and/or postal addresses - we only use that information to respond to your message or request. We will only share the information you give us with another government agency if your inquiry relates to that agency, or as otherwise required by law.We never create individual profiles or give it to any private organizations. We never collect information for commercial marketing. While you must provide an e-mail address or postal address for a response other than those generated automatically in response to questions or comments that you may submit, we recommend that you NOT include any other personal information, especially Social Security numbers. The Social Security Administration offers additional guidance on sharing your Social Security number.

We maintain a variety of physical, electronic and procedural safeguards to protect your personal information. For site security purposes and to ensure that this service remains available to all users, this government computer system employs software programs to monitor network traffic to identify unauthorized attempts to upload or change information, or otherwise cause damage.

Except for authorized law enforcement investigations, no other attempts are made to identify individual users or their usage habits. Raw data logs are used for no other purposes and are scheduled for regular destruction in accordance with National Archives and Records Administration guidelines.

Unauthorized attempts to upload information or change information on this service are strictly prohibited and may be punishable under the Computer Fraud and Abuse Act of 1986 and the National Information Infrastructure Protection Act.

If you have any questions or comments about the information presented here, please forward them to us using our Contact page.

Additional information on Use of Measurement and Customization Technology, Specific Technologies/Vendors, and Use of Third-party Websites and Applications can be found on the USACE Privacy & Security web page.