<P> New Panamax increases allowable width to 49 m (161 ft). </P> <P> The maximum allowable draft is 39.5 ft (12.04 m) in Tropical Fresh Water (TFW). The name and definition of TFW is created by ACP using the freshwater Lake Gatún as a reference, since this is the determination of the maximum draft . The salinity and temperature of water affect its density, and hence how deep a ship will float in the water . Tropical Fresh Water (TFW) is fresh water of Lake Gatún, with density 0.9954 g / cm, at 29.1 ° C (84 ° F). The physical limit is set by the lower (seaside) entrance of the Pedro Miguel locks . When the water level in Lake Gatún is low during an exceptionally dry season the maximum permitted draft may be reduced . Such a restriction is published three weeks in advance, so ship loading plans can take appropriate measures . </P> <P> New Panamax increases allowable draft to 15.2 m (49.9 ft), however due to low rainfall, the canal authority limited draft to 43 feet when the new locks opened in June 2016, increasing it to 44 feet (13.41 meters), in August "based on the current level of Gatun Lake and the weather forecast for the following weeks ." </P> <P> Vessel height is limited to 190 ft (57.91 m) measured from the waterline to the vessel's highest point; the limit also pertains to New Panamax and Balboa harbor . Exception: 205 ft (62.5 m) when passage at low water (MLWS) at Balboa is possible . </P>

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