<p><p><strong>Reference(s):</strong></p><p><em>Trenter (2001)</em></p><p><strong>Method Summary</strong></p><p>Piezometers should be installed to monitor ground water levels during construction. Piezometers can be of any type, such as open pipes or vibrating wire sensors.</p><p><strong>Accuracy and Precision</strong></p><p>The monitoring of the ground water levels is required to determine if any required excavation will extend below the water table. This method does not provide an indication of the overall site improvement.</p><p><strong>Adequacy of Coverage</strong></p><p>State transportation departments typically identify the location and depth of piezometers to be installed during construction.</p><p><strong>Implementation Requirements </strong></p><p>Piezometers are commonly used by all transportation departments.</p><p><strong>General Comments</strong></p><p>Piezometers are often an essential part of construction monitoring during excavation and replacement.</p></p>