Disclaimer Statement

The data on this website is provided for general information only. It is not intended for use as a navigation aid. NOAA publishes the official navigation charts to be used in US waters by mariners. Any navigational use of this data by others than the Corps of Engineers constitutes misuse of the data. At best, hydrographic surveys are accurate only at the time they are measured and only within the tolerances of the survey equipment, computers, printers, and other tools and equipment used to produce and print them. Wind, waves, currents, and other maritime effects are constantly changing the topography of the waters of the United States. Survey equipment and computer plotting software have inherent inaccuracies, and printers and displays can also create inaccuracies.

The materials are provided "as is." The government makes no representations or warranties about the quality or suitability of the materials, either expressed or implied, including but not limited to any implied warranties of merchantability, fitness for a particular purpose, or non-infringement. The government makes no warranties, guaranties or representations as to the truth, accuracy, or completeness of the data provided.

The government disclaims any liability for the use of this data by others and the government shall not be liable for any damages suffered as a result of using, modifying, contributing, or distributing the information available on this website.

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USACE Philadelphia District
Surveys Branch