|
Ellicott Dredges
First established as the Ellicott Machine Company in 1885, Ellicott Dredges is one of the oldest manufacturers in the world that specializes in the design and building of dredges and dredge machinery. Throughout its 125 years of existence, Ellicott has built over 1,500 dredges and exported to over 80 countries. History By 1783, brothers John and Andrew Ellicott were well established flour exporters and operators of the largest flour mill on the East coast US – Ellicott Mills. To accommodate their export business, the Ellicott brothers built a warehouse and wharf at Pratt and Light Streets on the Baltimore harbor. To maintain the wharf's water depth, and continue to bring in ships, the Ellicotts commonly utilized horse drawn scoops to remove sediment from the harbor. In 1785, the Ellicotts designed and built their first dredge, the Mud Machine. Their efforts have been documented as the first dredging effort in the Baltimore harbor. In the same year, Maryland's assembly e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Ellicott (miller)
John Ellicott (December 28, 1739 – December 28, 1794) was one of three Quaker brothers from Bucks County, Pennsylvania who chose the picturesque wilderness up river from Elk Ridge Landing (known today as Elkridge, Maryland) to establish a flour mill. John and Andrew Ellicott moved to Baltimore County, Maryland in May 1771 purchasing 50 acres of Baltimore County land from Emanuel Teal and 35 acres from William Williams. John, Andrew, and Joseph Ellicott founded Ellicott's Mills which became one of the largest milling and manufacturing towns in the East. The Ellicott brothers helped revolutionize farming in the area by persuading farmers to plant wheat instead of tobacco and also by introducing fertilizer to revitalize depleted soil. Charles Carroll, a signer of the Declaration of Independence, was an early influential convert from tobacco to wheat. Cassandra Ellicott remarried in 1800 at the opening of the Quaker Meeting House. John Ellicott was the uncle of surveyors Andr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andrew Ellicott (miller)
Andrew Ellicott (1733 – 1809) was one of three Quaker brothers from Bucks County, Province of Pennsylvania who chose the wilderness up river from Elk Ridge Landing (known today as Elkridge, Maryland) to establish a flour mill. John, Andrew, and Joseph Ellicott founded Ellicott's Mills which became one of the largest milling and manufacturing towns in the East. The Ellicott brothers helped revolutionize farming in the area by persuading farmers to plant wheat instead of tobacco and also by introducing fertilizer to revitalize depleted soil. Charles Carroll, a signer of the Declaration of Independence, was an early influential convert from tobacco to wheat. Andrew worked principally as a financier leaving his interests to his sons. His sons Jonathan and George Ellicott built their home by the river in Oella, Maryland. Andrew Ellicott was the uncle of the famous surveyors Andrew Ellicott and Joseph Ellicott Joseph Ellicott (November 1, 1760 in Bucks County, Pennsylvania ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dredging
Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing dams, dikes, and other controls for streams and shorelines; and recovering valuable mineral deposits or marine life having commercial value. In all but a few situations the excavation is undertaken by a specialist floating plant, known as a dredger. Dredging is carried out in many different locations and for many different purposes, but the main objectives are usually to recover material of value or use, or to create a greater depth of water. Dredges have been classified as suction or mechanical. Dredging has significant environmental impacts: it can disturb marine sediments, leading to both short- and long-term water pollution, destroy important seabed ecosystems, and can release human-sourced toxins captured in the sediment. Description ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellicott Mills
Ellicott City is an unincorporated community and census-designated place in, and the county seat of, Howard County, Maryland, United States. Part of the Baltimore metropolitan area, its population was 65,834 at the 2010 census, making it the most populous unincorporated county seat in the country. Ellicott City's historic downtownthe Ellicott City Historic Districtlies in the valleys of the Tiber and Patapsco rivers. The historic district includes the Ellicott City Station, which is the oldest surviving train station in the United States, having been built in 1830 as the first terminus of the original B&O Railroad line. The historic district is often called "Historic Ellicott City" or "Old Ellicott City" to distinguish it from the surrounding suburbs that extend south to Columbia and west to West Friendship. History Milling In 1766, James Hood used the "Maryland Mill Act of 1669" to condemn for a mill site adjacent to his river-side property. His gristmill was built on t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Of Baltimore
Helen Delich Bentley Port of Baltimore is a shipping port along the tidal basins of the three branches of the Patapsco River in Baltimore, Maryland on the upper northwest shore of the Chesapeake Bay. It is the nation's largest port facilities for specialized cargo (roll-on/roll-off ships) and passenger facilities. It is operated by the Maryland Port Administration (MPA), a unit of the Maryland Department of Transportation. During a 2006 celebration of the port's 300th birthday, the port was renamed in honor of Helen Delich Bentley (1923–2016), a former longtime U.S. Representative (Congresswoman) to the United States Congress (1985–1995) from Baltimore. She was also a former maritime reporter/editor for ''The Baltimore Sun,'' local major daily newspaper. History In 1608, Captain John Smith traveled 170 miles from Jamestown (established the previous year) exploring the shores, rivers, creeks, and streams to the upper Chesapeake Bay towards the Susquehanna River, leading the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panama Canal
The Panama Canal ( es, Canal de Panamá, link=no) is an artificial waterway in Panama that connects the Atlantic Ocean with the Pacific Ocean and divides North and South America. The canal cuts across the Isthmus of Panama and is a conduit for maritime trade. One of the largest and most difficult engineering projects ever undertaken, the Panama Canal shortcut greatly reduces the time for ships to travel between the Atlantic and Pacific oceans, enabling them to avoid the lengthy, hazardous Cape Horn route around the southernmost tip of South America via the Drake Passage or Strait of Magellan and the even less popular route through the Arctic Archipelago and the Bering Strait. Colombia, France, and later the United States controlled the territory surrounding the canal during construction. France began work on the canal in 1881, but stopped because of lack of investors' confidence due to engineering problems and a high worker mortality rate. The United States took over the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coastal Protection
Coastal management is defence against flooding and erosion, and techniques that stop erosion to claim lands. Protection against rising sea levels in the 21st century is crucial, as sea level rise accelerates due to climate change. Changes in sea level damage beaches and coastal systems are expected to rise at an increasing rate, causing coastal sediments to be disturbed by tidal energy. Coastal zones occupy less than 15% of the Earth's land area, while they host more than 40% of the world population. Nearly 1.2 billion people live within 100 km of shoreline and 100 m of sea level, with an average density 3 times higher than the global average for population. With three-quarters of the world population expected to reside in the coastal zone by 2025, human activities originating from this small land area will impose heavy pressure on coasts. Coastal zones contain rich resources to produce goods and services and are home to most commercial and industrial activities. Histor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sand Mining
Sand mining is the extraction of sand, mainly through an open pit (or sand pit) but sometimes mined from beaches and inland dunes or dredged from ocean and river beds. Sand is often used in manufacturing, for example as an abrasive or in concrete. It is also used on icy and snowy roads usually mixed with salt, to lower the melting point temperature, on the road surface. Sand can replace eroded coastline. Some uses require higher purity than others; for example sand used in concrete must be free of seashell fragments. Sand mining presents opportunities to extract rutile, ilmenite, and zircon, which contain the industrially useful elements titanium and zirconium. Besides these minerals, beach sand may also contain garnet, leucoxene, sillimanite, and monazite. These minerals are often found in ordinary sand deposits. A process known as elutriation is used, whereby flowing water separates the grains based on their size, shape, and density. Sand mining is a direct cause of erosion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Land Reclamation
Land reclamation, usually known as reclamation, and also known as land fill (not to be confused with a waste landfill), is the process of creating new land from oceans, seas, riverbeds or lake beds. The land reclaimed is known as reclamation ground or land fill. In some jurisdictions, including parts of the United States, the term "reclamation" can refer to returning disturbed lands to an improved state. In Alberta, Canada, for example, reclamation is defined by the provincial government as "The process of reconverting disturbed land to its former or other productive uses." In Oceania, it is frequently referred to as land rehabilitation. History One of the earliest large-scale projects was the Beemster Polder in the Netherlands, realized in 1612 adding of land. In Hong Kong the Praya Reclamation Scheme added of land in 1890 during the second phase of construction. It was one of the most ambitious projects ever taken during the Colonial Hong Kong era.Bard, Solomon. 002 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.png "Click for more on -> Dredging")
