Water level predictions and measurements from this new PORTS system were
instrumental in navigating the USS NEW YORK safely under a bridge with only
inches to spare. Air gap technology provided the needed information.
Image ID: cgs01503, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection Location: Louisiana, New Orleans Photo Date: 2009 Credit: NOAA News 102209; NOAA Center for Operational Oceanographic Products