Water table (architecture)

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A water table is a masonry architectural feature that consists of a projecting course that deflects water running down the face of a building away from lower courses or the foundation. A water table may be found near the base of a wall or at a transition between materials, such as from stone to brick.

A water table is a projection of lower masonry on the outside of the wall slightly above the ground. Often a damp course is placed at the level of the water table to prevent upward penetration of ground water.[1]

Note the water table around the base of the Arthur Heurtley House (illustration provided in that article) designed and built by Frank Lloyd Wright in 1902.