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The Ellsworth Dam is located between two bluffs which flank Maine's Union River, and rise to a height of more than 100 feet (30 m). [2] The dam consists of a series of buttresses, each set on a schist bedrock ledge, three feet thick, and spaced about 15 feet (4.6 m) apart, which provide support for two large slabs of steel-reinforced concrete that span the river between the bluffs.
Like other concrete formwork, the forms are filled with concrete in 1-foot to 4-foot high "lifts" to manage the concrete pressure and reduce the risk of blowouts. After the concrete has cured, the forms are left in place permanently to provide a variety of benefits, depending on materials used: Thermal insulation; Soundproofing
1901 – Symons founded [15] 1924 – Dayton Sure Grip & Shore founded [10] 1982 – Superior Concrete Accessories acquired – company name changed to Dayton Superior Corporation [12] 1995 – Acquired Dur-O-Wal, Inc. (masonry) [10] 1996 – Acquired Steel Structures, Inc. (paving) [18] 1996 – IPO – Shares traded on the New York Stock Exchange
Landforms of York County, Maine (3 C, 7 P) This page was last edited on 4 July 2014, at 16:54 (UTC). Text is available under the Creative Commons ...
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This page was last edited on 23 December 2013, at 04:24 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
Waite is a town in Washington County, Maine, United States. The town was named after Benjamin Waite, a lumberman [3] and businessman from Calais, Maine. [4] The population was 66 at the 2020 census. [5] Waite is a small community served by one general store. The town is also home to two logging contractors.
Freeport is a town in Cumberland County, Maine, United States.Freeport is included in the Lewiston-Auburn, Maine metropolitan New England City and town area.The population was 8,737 at the 2020 census. [2]