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AMERICAN ENGINEERING TESTING, INC. AET Project No. 22-00012 <br /> with a hot bituminous sealant. Within three to five years after construction, cracks and <br /> depressions may appear in heavily traveled areas. Such areas should be cut out and repaired <br /> expeditiously to extend the pavement life. Periodically during the pavement life, the Civil <br /> Engineer responsible for maintenance of the facility should determine the need to apply a seal <br /> coat of hot bituminous and rock chips. <br /> 7.0 CONSTRUCTION CONSIDERATIONS <br /> 7.1 Potential Difficulties <br /> 7.1.1 Water in Excavations <br /> Based on the conditions found in our borings, it is our opinion that the hydrostatic groundwater <br /> table could be encountered in excavations for soil correction, foundations, and underground <br /> utilities on this site, requiring construction dewatering. Perched groundwater and water from old <br /> drain tile could also be encountered in excavations for foundations and underground utilities for <br /> this project. To allow observation of the excavation bottom, and to reduce the potential for soil <br /> disturbance and facilitate filling operations, we recommend that all free-standing water within <br /> the excavations be removed prior to proceeding with construction. <br /> The dewatering plan should include provisions for handling and disposing of contaminated <br /> groundwater, if encountered. This should be reviewed with your environmental consultant, <br /> Liesch Associates. <br /> 7.1.2 Disturbance of Soils <br /> The soils that we encountered in our borings are highly susceptible to disturbance by <br /> construction traffic, especially when saturated or exposed to free groundwater. Disturbed soils <br /> should be carefully excavated and replaced with new compacted fill as described above. <br /> 7.1.3 Winter Construction <br /> If construction occurs during the winter, it is necessary for the contractor to protect the base soils <br /> from freezing each day and each night before new fill is placed. Fill should not be placed over <br /> Page 26 of 28 <br />