HELLO EVERYONE. TODAY WE WILL TALK ABOUT ‘’FORT PECK’’ DAM IN THE UNITED STATES OF AMERICA. The Fort Peck Dam is the highest of six major dams along the Missouri River, located in northeast Montana in the United States. Fort Peck dam is the largest hydraulically filled dam in the USA. 21026 feet (6409m) in length and over 250 feet (76m) in height. The dam was created in the Fort Peck lake which is considered as the fifth largest artificial lake in the USA. Lake is more than 130 miles (210 km) long, 200 feet (61 m) deep, and it has a 1,520 mile (2450 m)shoreline. The construction was started to built in 1933 and finished in July of 1936. in addition, 10 546 people were employed because of the construction. When it comes to the main purpose of the Dam, it is getting electricity from water. The dam presently has a nameplate capacity of 185.25 megawatts, divided among 5 generating units (which in turn are divided between the Western and Eastern grids). Three units in powerhouse number one, completed in 1951, have a capacity of 105 MW. Completed in 1961, the two remaining generating units in powerhouse number 2, have a nameplate capacity of 80 MW Fort Peck was a major project of the Public Works Administration, part of the New Deal. Since the construction method of hydraulic fill was chosen, four electric dredges were built. Because of the distance of the site from the nearest shoreline, a shipyard was started on the site, affectionately dubbed "The Fort Peck Navy" and "The Biggest Shipyard in Montana" by the workers. These dredges would pump material from nearby borrow pits to the dam site where it was discharged by pipes along the outside edges of the fill. The coarser material settled out quickly, while the fines were carried downhill toward what would eventually become the core of the dam - Since the construction method of hydraulic fill was chosen, four electric dredges were built. Because of the distance of the site from the nearest shoreline, a shipyard was started on the site, affectionately dubbed "The Fort Peck Navy" and "The Biggest Shipyard in Montana" by the workers. These dredges would pump material from nearby borrow pits to the dam site where it was discharged by pipes along the outside edges of the fill. The coarser material settled out quickly, while the fines were carried downhill toward what would eventually become the core of the dam
This process proceeded until elevation of the fill reached approximately 2,250 feet (690 m), while the reservoir was at an elevation of 2,117.5 feet (645.4 m). At this point, the danger of the core pool overtopping or bursting the shell became greater because the beaches became narrower. For this reason, an extensive alarm system was implemented along the narrower upstream shell. This alarm system could immediately shut off the dredge pumps if a shell breach was detected. Part of this alarm system involved monitoring the elevations of the core pool and the pipelines carrying the dredged fill. Fort Peck Dam is probably best known for being the subject of a photograph of the spillway taken by Margaret Bourke-White while still under construction that was the cover photo of the first issue of Life magazine on November 23, 1936. Later, the photograph by Bourke-White was used on a United States postage stamp in the "Celebrate the Century" series. - Fort Peck Dam is probably best known for being the subject of a photograph of the spillway taken by Margaret Bourke-White while still under construction that was the cover photo of the first issue of Life magazine on November 23, 1936. Later, the photograph by Bourke-White was used on a United States postage stamp in the "Celebrate the Century" series.
This is the end of my presentation. I have provided with several facts about ‘’FORT PECK’’ dam.
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