High water table

Interior · Wet Basements and Crawlspaces · printed page 370 (PDF page 371)

Book index entries

High Water Table Water Table – High Basement – Wet Crawlspace – Wet Wet Basement – and Crawlspaces Wet Crawlspaces and Basements

Text in the illustration

floor framing
foundation wall
if the water table is high - water will find its way into the basement through any gaps in the foundation/floor
if the basement is tight, water pressure may heave and crack the floor to relieve the pressure
water table
perimeter drainage tile
cross section

Generated explanation

The cross section shows a basement foundation wall and footing supporting wood floor framing, with a concrete basement floor over an aggregate layer. Exterior soil contains a water table above the basement floor level, and perimeter drainage tile is shown beside the footing. Arrows indicate groundwater entering through gaps at the foundation/floor junction and through the floor. The annotations explain that high groundwater can enter a basement through openings, or exert pressure that heaves and cracks the floor if the basement is tight.

Related illustrations

2075

Depth of foundation

· p. 371

The cross section compares shallow and deep concrete foundations supporting wood floor framing, with a water table below the shallow footing but above the deeper footing and slab. Both foundations have perimeter drainage