|
Watts Branch (Anacostia River)
Watts Branch is a tributary stream of the Anacostia River in Prince George's County, Maryland, and Washington, D.C. Course The headwaters of the stream originate in the Capitol Heights area of Prince George's County, and the branch flows roughly northwest for to the Anacostia, which drains to the Potomac River and the Chesapeake Bay. The watershed area of Watts Branch is about in Prince George's County and in Washington. Water quality Watts Branch is in a highly urbanized area, and its water quality has been rated as poor by government agencies. The stream has been polluted by urban runoff (stormwater), dumped trash and leaking sewer pipes. Much of the stream is in concrete channels or culverts. A variety of stream cleanup and restoration projects have been initiated by D.C. government, the United States Environmental Protection Agency (EPA) and other federal agencies, in cooperation with community organizations such as thAnacostia Riverkeeper thAnacostia Watershed Socie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maryland
Maryland ( ) is a state in the Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware and the Atlantic Ocean to its east. Baltimore is the largest city in the state, and the capital is Annapolis. Among its occasional nicknames are '' Old Line State'', the ''Free State'', and the '' Chesapeake Bay State''. It is named after Henrietta Maria, the French-born queen of England, Scotland, and Ireland, who was known then in England as Mary. Before its coastline was explored by Europeans in the 16th century, Maryland was inhabited by several groups of Native Americans – mostly by Algonquian peoples and, to a lesser degree, Iroquoian and Siouan. As one of the original Thirteen Colonies of England, Maryland was founded by George Calvert, 1st Baron Baltimore, a Catholic convert"George Calvert and Cecilius Calvert, Barons Baltimore" William Hand Browne, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urban Runoff
Urban runoff is surface runoff of rainwater, landscape irrigation, and car washing created by urbanization. Impervious surfaces (roads, parking lots and sidewalks) are constructed during land development. During rain , storms and other precipitation events, these surfaces (built from materials such as asphalt and concrete), along with rooftops, carry polluted stormwater to storm drains, instead of allowing the water to percolate through soil. This causes lowering of the water table (because groundwater recharge is lessened) and flooding since the amount of water that remains on the surface is greater.Water Environment Federation Alexandria, VA; an American Society of Civil Engineers Reston, VA [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rivers Of Prince George's County, Maryland
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague. Rivers are part of the water cycle. Water generally collects in a river from precipitation through a drainage basin from surface runoff and other sources such as groundwater recharge, springs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Maryland Rivers
List of rivers of Maryland (U.S. state). The list is arranged by drainage basin from east to west, with respective tributaries indented under each larger stream's name and ordered from downstream to upstream. By drainage basin Delaware River *Christina River Atlantic Ocean * Ayres Creek * Greys Creek * St. Martin River *Turville Creek * Trappe Creek Chesapeake Bay Eastern Shore * Pocomoke River ** Dividing Creek ** Nassawango Creek *Little Annemessex River *Big Annemessex River *Manokin River * Monie Creek * Wicomico River ** Beaverdam Creek * Nanticoke River **Barren Creek *** Mockingbird Creek **Marshyhope Creek *** Big Creek ***Stony Bar Creek ***Krafts Creek *** Spears Creek ***Becky Taylor Branch *** Mill Branch *** Mill Creek *** Puckum Branch *** Wrights Branch ***Skinners Run ***Davis Millpond Branch **** North Davis Millpond Branch **** South Davis Millpond Branch *** Miles Branch *** Tanyard Branch *** Faulkner Branch *** Tull Branch ***Sullivan Branch **** Raccoon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of District Of Columbia Rivers
List of rivers and creeks of Washington, D.C. (District of Columbia), sorted alphabetically. * Anacostia River * Barnaby Run * Bennings Branch (historical) * Bingham Run * Broad Branch * Davis Branch (historical) * Deep Branch (historical) * Duck Creek (historical) * Dumbarton Oaks * Fenwick Branch * Fletchers Run * Fort Chaplin Tributary * Fort Dupont Tributary * Fort Stanton Tributary * Foundry Branch * Gallatin Run * Gillam Branch (historical) * Hickey Run * James Creek (historical) * Klingle Run * Lost Stream * Lower Beaverdam Creek * Luzon Branch * Maddox Branch * Melvin Hazen Valley Branch * Milkhouse Run * Nash Run * Normanstone Creek * Oxon Creek * Oxon Run * Pinehurst Branch * Piney Branch * Piney Run * Pope Branch * Portal Branch * Potomac River * Reedy Branch (historical) * Rock Creek * Soapstone Branch * Stickfoot Branch * Texas Avenue Tributary * Tiber Creek (Goose Creek) * Watts Branch * Winkle Doodle Run See also * Boundary Channel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watts Branch (Potomac River)
Watts Branch is a tributary stream of the Potomac River in Montgomery County, Maryland. Course The headwaters of the stream originate in the city of Rockville, and the branch flows southwest for ,U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed August 15, 2011 under the C&O Canal near Swain's Lock, to the Potomac River, which drains to the Chesapeake Bay. The watershed area is about .City of Rockville, MD''Watts Branch Watershed Study and Management Plan Final Report.''August 6, 2001. Portions of Watts Branch flow through a stream valley park, a mostly undeveloped natural area which acts as a riparian buffer zone to help minimize stream bank erosion and filter pollutants from stormwater runoff. Development impacts on water quality While some parts of the Watts Branch watershed are parkland or remain forested, the area is adjacent to Rockville town center and the Interstate 270 corridor. This community has experience ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Environmental Protection Agency
The Environmental Protection Agency (EPA) is an independent executive agency of the United States federal government tasked with environmental protection matters. President Richard Nixon proposed the establishment of EPA on July 9, 1970; it began operation on December 2, 1970, after Nixon signed an executive order. The order establishing the EPA was ratified by committee hearings in the House and Senate. The agency is led by its administrator, who is appointed by the president and approved by the Senate. The current administrator is Michael S. Regan. The EPA is not a Cabinet department, but the administrator is normally given cabinet rank. The EPA has its headquarters in Washington, D.C., regional offices for each of the agency's ten regions and 27 laboratories. The agency conducts environmental assessment, research, and education. It has the responsibility of maintaining and enforcing national standards under a variety of environmental laws, in consultation with state, tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stream Restoration
Stream restoration or river restoration, also sometimes referred to as river reclamation, is work conducted to improve the environmental health of a river or stream, in support of biodiversity, recreation, flood management and/or landscape development. Stream restoration approaches can be divided into two broad categories: form-based restoration, which relies on physical interventions in a stream to improve its conditions; and process-based restoration, which advocates the restoration of hydrological and geomorphological processes (such as sediment transport or connectivity between the channel and the floodplain) to ensure a stream's resilience and ecological health. Form-based restoration techniques include deflectors; cross-vanes; weirs, step-pools and other grade-control structures; engineered log jams; bank stabilization methods and other channel-reconfiguration efforts. These induce immediate change in a stream, but sometimes fail to achieve the desired effects if degradatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Culvert
A culvert is a structure that channels water past an obstacle or to a subterranean waterway. Typically embedded so as to be surrounded by soil, a culvert may be made from a pipe, reinforced concrete or other material. In the United Kingdom, the word can also be used for a longer artificially buried watercourse. Culverts are commonly used both as cross-drains to relieve drainage of ditches at the roadside, and to pass water under a road at natural drainage and stream crossings. When they are found beneath roads, they are frequently empty. A culvert may also be a bridge-like structure designed to allow vehicle or pedestrian traffic to cross over the waterway while allowing adequate passage for the water. Culverts come in many sizes and shapes including round, elliptical, flat-bottomed, open-bottomed, pear-shaped, and box-like constructions. The culvert type and shape selection is based on a number of factors including requirements for hydraulic performance, limitations on up ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concrete
Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. Concrete is the second-most-used substance in the world after water, and is the most widely used building material. Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminum combined. Globally, the ready-mix concrete industry, the largest segment of the concrete market, is projected to exceed $600 billion in revenue by 2025. This widespread use results in a number of environmental impacts. Most notably, the production process for cement produces large volumes of greenhouse gas emissions, leading to net 8% of global emissions. Other environmental concerns include widespread illegal sand mining, impacts on the surrounding environment such as increased surface runoff or urban heat island effect, and potential public health implications from toxic ingredients. Significant research and development is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sanitary Sewer
A sanitary sewer is an underground pipe or tunnel system for transporting sewage from houses and commercial buildings (but not stormwater) to a sewage treatment plant or disposal. Sanitary sewers are a type of gravity sewer and are part of an overall system called a "sewage system" or sewerage. Sanitary sewers serving industrial areas may also carry industrial wastewater. In municipalities served by sanitary sewers, separate storm drains may convey surface runoff directly to surface waters. An advantage of sanitary sewer systems is that they avoid combined sewer overflows. Sanitary sewers are typically much smaller in diameter than combined sewers which also transport urban runoff. Backups of raw sewage can occur if excessive stormwater inflow or groundwater infiltration occurs due to leaking joints, defective pipes etc. in aging infrastructure. Purpose Sewage treatment is less effective when sanitary waste is diluted with stormwater, and combined sewer overflows occur when r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stormwater
Stormwater, also spelled storm water, is water that originates from precipitation (storm), including heavy rain and meltwater from hail and snow. Stormwater can soak into the soil ( infiltrate) and become groundwater, be stored on depressed land surface in ponds and puddles, evaporate back into the atmosphere, or contribute to surface runoff. Most runoff is conveyed directly as surface water to nearby streams, rivers or other large water bodies (wetlands, lakes and oceans) without treatment. In natural landscapes, such as forests, soil absorbs much of the stormwater. Plants also reduce stormwater by improving infiltration, intercepting precipitation as it falls, and by taking up water through their roots. In developed environments, such as cities, unmanaged stormwater can create two major issues: one related to the volume and timing of runoff (flooding) and the other related to potential contaminants the water is carrying (water pollution). In addition to the pollutants carr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
