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The water table is the upper surface of the zone of saturation. The zone of saturation is where the pores and fractures of the ground are saturated with groundwater, [1] which may be fresh, saline, or brackish, depending on the locality. It can also be simply explained as the depth below which the ground is saturated.
The Ohio River is a 981-mile-long (1,579 km) river in the United States. It is located at the boundary of the Midwestern and Southern United States, flowing in a southwesterly direction from western Pennsylvania to its mouth on the Mississippi River at the southern tip of Illinois. It is the third largest river by discharge volume in the United ...
The frost line —also known as frost depth or freezing depth —is most commonly the depth to which the groundwater in soil is expected to freeze. The frost depth depends on the climatic conditions of an area, the heat transfer properties of the soil and adjacent materials, and on nearby heat sources. For example, snow cover and asphalt ...
The following is a list of lakes in Ohio. According to the Ohio Department of Natural Resources , there are approximately 50,000 lakes and small ponds, with a total surface area of 200,000 acres, and among these there are 2,200 lakes of 5 acres (2.0 ha) or greater with a total surface area of 134,000 acres. [ 1 ]
The Ogallala Aquifer (oh-gə-LAH-lə) is a shallow water table aquifer surrounded by sand, silt, clay, and gravel located beneath the Great Plains in the United States. As one of the world's largest aquifers, it underlies an area of approximately 174,000 sq mi (450,000 km 2) in portions of eight states (South Dakota, Nebraska, Wyoming, Colorado, Kansas, Oklahoma, New Mexico, and Texas). [1]
The Act allowed the production of a system of locks and dams along the Ohio. In 1929, the canalization project on the Ohio River was finished. The project produced 51 wooden wicket dams and 600 foot by 110 foot lock chambers along the length of the river. During the 1940s, a shift from steam propelled to diesel powered towboats allowed for tows ...
The Ohio region, which is listed with a 2-digit hydrologic unit code (HUC) of 05, has an approximate size of 162,916 square miles (421,950 square kilometers ), and consists of 14 subregions, which are listed with the 4-digit HUCs 0501 through 0514. This region includes the drainage of the Ohio River Basin, excluding the Tennessee River Basin.
Watertable control. In geotechnical engineering, watertable control is the practice of controlling the height of the water table by drainage. Its main applications are in agricultural land (to improve the crop yield using agricultural drainage systems) and in cities to manage the extensive underground infrastructure that includes the ...