Engineer Reasearch and Development Center (ERDC) Coastal and Hydraulics Laboratory (CHL)
THE WEB-TOOL IS CURRENTLY UNDER MAINTENANCE

The CHS Web-Tool is undergoing maintenance and will be unavailable starting at around 5:00pm CST Friday, May 20, and should be back online 7:00am CST, Monday, May 23, 2022. Please check back later for any status updates.