Drawing of the side view and top view of a check dam.

The top image of the side view:

• An arrow pointing to a rebar going through the center of the bottom log is labeled '16- x 600-mm (1/2- x 24-in) #4 rebar. Drive flush with top of log.'
• An arrow pointing to a stake on the downhill side of the middle log is labeled '50- x 450-mm (2- x 18-in) stakes. Use 16d ringshank or barbed nails.'
• Arrows show the height on the downhill side that the check dam should be out of the ground. It is labeled '150 to 250 mm (6 to 10 in) typical'.
• Arrows show the depth on the uphill side that the check dam should be in the ground. It is labeled '125 mm (6 in) min.'
• Other text included: 'Use 300-mm (12-in) -diameter logs or 100- x 300-mm (4- x 12-in) dimensional lumber.'

The bottom image of the top view:

• Text included: 'Embed logs, rocks, or dimensional lumber at least 300 mm (12 in) into undisturbed bank.'