mean low water


Also found in: Acronyms.

mean low water

[′mēn ′lō ′wȯd·ər]
(oceanography)
The average height of all low waters recorded at a given place over a 19-year period.
References in periodicals archive ?
The project is for the specific purpose of maintaining consistency with dredging of the Intra Coastal Waterway (ICW) channel to a depth of 15 Mean Low Water (MLW) at the City s Las Olas Marina and Aquatics Complex.
Or, there may not be any notation--just a khaki green indicating bottom barely covered at mean low water.
However, the average burial depth below the channel bottom and the average burial depth below mean low water both are greater than required by the permit conditions.
Present depths vary from elevation 0 to -12 Mean Low Water, allowing vessel access only at higher tides.