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Modern zoned-earth embankments employ filter and drain zones to collect and remove seep water and preserve the integrity of the downstream shell zone. An outdated method of zoned earth dam construction used a hydraulic fill to produce a watertight core. Rolled-earth dams may also employ a watertight facing or core in the manner of a rock-fill dam.
Meadow Grounds Dam is categorized by the Pennsylvania Department of Environmental Protection (PADEP) as a High Hazard (Category 1), size class B structure. The drainage area of the dam’s watershed is 3.2 square miles on Roaring Run. The zoned earth embankment creates a 204-acre reservoir and at normal pool stores 3130 (acre-feet) of water.
The construction of the canal head works began in March 1948, and was completed a year later. Designed as a zoned earth embankment structure with an impervious central core, a semi-pervious layer on either side of the core, and a layer of rock fill. The semi-pervious layer was built in 1 foot (0.30 m) layers and compacted.
A simple approach involves defining different earthworks features in a computer program and then adjusting elevations manually to calculate the optimal cut and fill. More sophisticated software is able to automatically balance cut and fill while also considering the materials.
This is the category for embankment dams that are filled with earthen material such as soil. Pages in category "Earth-filled dams" The following 200 pages are in this category, out of approximately 259 total.
The New Waddell Dam is 300 ft (91 m) high from the riverbed and 440 feet (130 m) high from its bedrock foundation. It is a zoned earth-fill type and is 4,700 ft (1,433 m) long; containing 16,200,000 cu yd (12,385,789 m 3) of material. The dam has a crest width of 35 feet (11 m) and a base width of 1,514 feet (461 m). [4]
An earth structure is a building or other structure made ... steadily growing in size. ... is an embankment dam about 18 kilometres (11 mi) long and from 40 to 88 ...
The dam is an earth-fill type with a length of 4,300 ft (1,311 m) and height of 211 ft (64 m). The dike is 17,000 ft (5,182 m) long and 60 ft (18 m) tall. The dam's main spillway is controlled by three gates and has a maximum discharge of 68,467 cu ft/s (1,939 m 3 /s).