Waterbodies - Rivers and Streams (Generalized): Maryland

Creator:

USGS

Description:

The digital segmented network based on watershed boundaries, ERF1-2, includes enhancements to the U.S. Environmental Protection Agency's River Reach File 1 (RF1) (USEPA, 1996; DeWald and others, 1985) to support national and regional-scale surface water-quality modeling. Alexander and others (1999) developed ERF1, which assessed the hydrologic integrity of the digital reach traces and calculated the mean water time-of-travel in river reaches and reservoirs. ERF1-2 serves as the foundation for SPARROW (Spatially Referenced Regressions (of nutrient transport) On Watershed) modeling. Within the context of a Geographic Information System, SPARROW estimates the proportion of watersheds in the conterminous U.S. with outflow concentrations of several nutrients, including total nitrogen and total phosphorus, (Smith, R.A., Schwarz, G.E., and Alexander, R.B., 1997). This version of the network expands on ERF1 (version 1.2; Alexander et al. 1999), and includes the incremental and total drainage area derived from 1-kilometer (km) elevation data for North America. Previous estimates of the water time-of-travel were recomputed for reaches with water- quality monitoring sites that included two reaches. The mean flow and velocity estimates for these split reaches are based on previous estimation methods (Alexander et al., 1999) and are unchanged in ERF1-2. Drainage area calculations provide data used to estimate the contribution of a given nutrient to the outflow. Data estimates depend on the accuracy of node connectivity. Reaches split at water- quality or pesticide-monitoring sites indicate the source point for estimating the contribution and transport of nutrients and their loads throughout the watersheds. The ERF1-2 coverage extends the earlier ERF1 coverage by providing digital-elevation-model (DEM-based estimates of reach drainage area founded on the 1-kilometer data for North America (Verdin, 1996; Verdin and Jenson, 1996). A 1-kilometer raster grid of ERF1-2 projected to Lambert Azimuthal Equal Area, NAD 27 Datum (Snyder, 1987), was merged with the HYDRO1K flow direction data set (Verdin and Jenson, 1996) to generate a DEM-based watershed grid, ERF1_2WS. The watershed boundaries are maintained in a raster (grid cell) format as well as a vector (polygon) format for subsequent model analysis. Both the coverage, ERF1-2, and the grid, ERF1-2WS are available at: http://water.usgs.gov/lookup/gisgetlist.The version of RF1 used to compile ERF1-2 was an early edition of a USGS RF1 translation and was updated by USEPA (USEPA, 1996). The capabilities of the enhanced version of RF1 (ERF1-2) and the current USEPA version have not been evaluated. The user is referred to the USEPA version [http://www.epa.gov/owow/monitoring/rf/rfindex] for discussions of streamflow accuracy and general background on the origin of RF1.This is a MD iMAP hosted service layer. Find more information athttps://imap.maryland.gov.Feature Service Layer Link:https://geodata.md.gov/imap/rest/services/Hydrology/MD_Waterbodies/FeatureServer/0

Place:

Martin's Additions, Maryland, Edmonston, Maryland, Madison, Maryland, Edesville, Maryland, Howard County, Maryland, Naval Academy, Maryland, Cloverly, Maryland, Accokeek, Maryland, Brooklyn Park, Maryland, Garrison, Maryland, Redland, Maryland, Brownsville, Maryland, Indian Springs, Maryland, Highfield-cascade, Maryland, Peppermill Village, Maryland, Detmold, Maryland, Charlton, Maryland, Chester, Maryland, Brown Station, Maryland, Deale, Maryland, Cumberland, Maryland, Downsville, Maryland, Takoma Park, Maryland, Severna Park, Maryland, Seat Pleasant, Maryland, Landover Hills, Maryland, Church Creek, Maryland, Taneytown, Maryland, Washington County, Maryland, Mardela Springs, Maryland, Fairmount Heights, Maryland, Riverside, Maryland, Marydel, Maryland, Still Pond, Maryland, Funkstown, Maryland, Kemps Mill, Maryland, Choptank, Maryland, Severn, Maryland, Edgemont, Maryland, Prince George's County, Maryland, University Park, Maryland, Fort Washington, Maryland, Forest Glen, Maryland, Highland, Maryland, Sabillasville, Maryland, Rock Point, Maryland, Bensville, Maryland, Brandywine, Maryland, Barton, Maryland, Franklin, Maryland, Potomac, Maryland, Vienna, Maryland, West Ocean City, Maryland, Point Of Rocks, Maryland, Flintstone, Maryland, Springdale, Maryland, Mount Rainier, Maryland, Camp Springs, Maryland, Federalsburg, Maryland, Trappe, Maryland, Oxon Hill, Maryland, Capitol Heights, Maryland, Riva, Maryland, Trego-rohrersville Station, Maryland, Leonardtown, Maryland, Fountainhead-orchard Hills, Maryland, Highland Beach, Maryland, Friendsville, Maryland, Charlestown, Maryland, Cavetown, Maryland, Greensburg, Maryland, Overlea, Maryland, Upper Marlboro, Maryland, Towson, Maryland, White Oak, Maryland, Glen Echo, Maryland, Butlertown, Maryland, Urbana, Maryland, West Denton, Maryland, Frenchtown-rumbly, Maryland, Potomac Heights, Maryland, Walker Mill, Maryland, East New Market, Maryland, Galesville, Maryland, Marlow Heights, Maryland, Henderson, Maryland, Centreville, Maryland, Mays Chapel, Maryland, National, Maryland, Lake Shore, Maryland, Somerset County, Maryland, Four Corners, Maryland, Derwood, Maryland, Elliott, Maryland, La Vale, Maryland, Tall Timbers, Maryland, Somerset, Maryland, National Harbor, Maryland, Adelphi, Maryland, Edgemere, Maryland, Chestertown, Maryland, Temple Hills, Maryland, Fulton, Maryland, Galena, Maryland, Princess Anne, Maryland, Leisure World, Maryland, Bakersville, Maryland, Algonquin, Maryland, New Carrollton, Maryland, Kingsville, Maryland, North Potomac, Maryland, Cordova, Maryland, Owings Mills, Maryland, Pleasant Grove, Maryland, Lisbon, Maryland, Columbia, Maryland, Maryland Park, Maryland, Taylors Island, Maryland, Melwood, Maryland, Easton, Maryland, Charles County, Maryland, Glenmont, Maryland, Port Deposit, Maryland, Anne Arundel County, Maryland, Carlos, Maryland, Oldtown, Maryland, Charlotte Hall, Maryland, Midlothian, Maryland, Olney, Maryland, Fruitland, Maryland, Milford Mill, Maryland, Joppatowne, Maryland, Mount Airy, Maryland, Hagerstown, Maryland, Fairmount, Maryland, Brunswick, Maryland, Grasonville, Maryland, Benedict, Maryland, Keedysville, Maryland, Lonaconing, Maryland, Germantown, Maryland, Woodlawn, Maryland, Sandy Hook, Maryland, Dames Quarter, Maryland, Adamstown, Maryland, Oxford, Maryland, Tolchester, Maryland, Silver Spring, Maryland, Breathedsville, Maryland, Betterton, Maryland, Indian Head, Maryland, Riverdale Park, Maryland, St. James, Maryland, Bryantown, Maryland, Delmar, Maryland, Essex, Maryland, Jennings, Maryland, Owings, Maryland, Kingstown, Maryland, South Kensington, Maryland, Pikesville, Maryland, North Brentwood, Maryland, Bowling Green, Maryland, Annapolis, Maryland, Big Pool, Maryland, Rosemont, Maryland, Brookmont, Maryland, Vale Summit, Maryland, Hillandale, Maryland, Wilson-conococheague, Maryland, Chevy Chase Village, Maryland, Hurlock, Maryland, Burnt Mills, Maryland, Williston, Maryland, Sharptown, Maryland, Rohrersville, Maryland, Elkridge, Maryland, Jesterville, Maryland, Spring Gap, Maryland, Aberdeen Proving Ground, Maryland, Seabrook, Maryland, Arden On The Severn, Maryland, Lutherville, Maryland, Garretts Mill, Maryland, Lanham, Maryland, Kensington, Maryland, Colmar Manor, Maryland, Croom, Maryland, Bel Air, Maryland, Corriganville, Maryland, Union Bridge, Maryland, Clear Spring, Maryland, Spencerville, Maryland, Manchester, Maryland, Silver Hill, Maryland, Westernport, Maryland, West Pocomoke, Maryland, Edgewater, Maryland, Langley Park, Maryland, Dawson, Maryland, Cedar Heights, Maryland, Eldersburg, Maryland, Crisfield, Maryland, Barclay, Maryland, Mount Lena, Maryland, Smith Island, Maryland, Coral Hills, Maryland, Ocean, Maryland, Oakland, Maryland, Piney Point, Maryland, Kitzmiller, Maryland, Bivalve, Maryland, Baden, Maryland, Chewsville, Maryland, Talbot County, Maryland, Hillcrest Heights, Maryland, Worcester County, Maryland, Herald Harbor, Maryland, Layhill, Maryland, Frederick, Maryland, Kettering, Maryland, California, Maryland, Spring Ridge, Maryland, Mapleville, Maryland, Calvert County, Maryland, Friendship, Maryland, Kemp Mill, Maryland, Andrews Afb, Maryland, Arbutus, Maryland, Zihlman, Maryland, Brentwood, Maryland, Deer Park, Maryland, Brock Hall, Maryland, Chevy Chase, Maryland, College Park, Maryland, Fallston, Maryland, Tyaskin, Maryland, Callaway, Maryland, Hampstead, Maryland, Honeygo, Maryland, Ridgely, Maryland, Drum Point, Maryland, Scaggsville, Maryland, Frederick County, Maryland, Burkittsville, Maryland, Berlin, Maryland, Aberdeen, Maryland, Mount Briar, Maryland, Riviera Beach, Maryland, Cabin John, Maryland, Crownsville, Maryland, Greenbelt, Maryland, Marlton, Maryland, Bethesda, Maryland, Newark, Maryland, Monrovia, Maryland, Ashton-sandy Spring, Maryland, Pocomoke City, Maryland, Ringgold, Maryland, Abingdon, Maryland, Jessup, Maryland, Shaft, Maryland, Randallstown, Maryland, Mayo, Maryland, Pylesville, Maryland, Fairplay, Maryland, Aquasco, Maryland, Salisbury, Maryland, Lusby, Maryland, Church Hill, Maryland, Libertytown, Maryland, Cockeysville, Maryland, Dundalk, Maryland, Cecilton, Maryland, Perryville, Maryland, Bowmans Addition, Maryland, Kennedyville, Maryland, North Beach, Maryland, Cottage City, Maryland, Mitchellville, Maryland, District Heights, Maryland, Gorman, Maryland, Morningside, Maryland, Pondsville, Maryland, Crellin, Maryland, Middletown, Maryland, Georgetown, Maryland, Jugtown, Maryland, Frostburg, Maryland, Barrelville, Maryland, Cambridge, Maryland, Buckeystown, Maryland, Baltimore County, Maryland, San Mar, Maryland, Barnesville, Maryland, Edgewood, Maryland, Largo, Maryland, Mccoole, Maryland, Suitland, Maryland, Port Tobacco Village, Maryland, Klondike, Maryland, Willards, Maryland, Robinwood, Maryland, Chevy Chase Section Five, Maryland, Mount Vernon, Maryland, Myersville, Maryland, Mechanicsville, Maryland, Bel Air North, Maryland, Darnestown, Maryland, Solomons, Maryland, Dunkirk, Maryland, Mercersville, Maryland, Eckhart Mines, Maryland, St. Leonard, Maryland, New Market, Maryland, Allegany County, Maryland, Grantsville, Maryland, Gapland, Maryland, North Chevy Chase, Maryland, Reid, Maryland, Poolesville, Maryland, Catonsville, Maryland, Waterview, Maryland, Rosaryville, Maryland, North Kensington, Maryland, Eldorado, Maryland, Dargan, Maryland, Rawlings, Maryland, Jefferson, Maryland, Kent County, Maryland, Glassmanor, Maryland, Ellicott City, Maryland, Antietam, Maryland, Fairwood, Maryland, Dorchester County, Maryland, Moscow, Maryland, Braddock Heights, Maryland, Fairland, Maryland, Williamsport, Maryland, Carney, Maryland, Arnold, Maryland, Lexington Park, Maryland, Lochearn, Maryland, Travilah, Maryland, Konterra, Maryland, Pomfret, Maryland, Calvert Beach, Maryland, Woodland, Maryland, Midland, Maryland, Westminster, Maryland, Garrett Park, Maryland, Middle River, Maryland, East Riverdale, Maryland, Harford County, Maryland, Fort Ritchie, Maryland, Grahamtown, Maryland, Cape St. Claire, Maryland, Boonsboro, Maryland, Laytonsville, Maryland, Cearfoss, Maryland, Leitersburg, Maryland, Stockton, Maryland, Greensboro, Maryland, Millington, Maryland, Fairlee, Maryland, Rosedale, Maryland, Chesapeake Landing, Maryland, Hillsboro, Maryland, Linganore, Maryland, Pittsville, Maryland, Queenstown, Maryland, La Plata, Maryland, Wicomico County, Maryland, Friendly, Maryland, Lake Arbor, Maryland, Odenton, Maryland, Huntingtown, Maryland, Pleasant Hills, Maryland, Pinesburg, Maryland, Swanton, Maryland, Nikep, Maryland, Ten Mile Creek, Maryland, Beltsville, Maryland, Queensland, Maryland, Big Spring, Maryland, Mountain Lake Park, Maryland, Cobb Island, Maryland, Hebron, Maryland, Pasadena, Maryland, Ferndale, Maryland, Rossville, Maryland, Parole, Maryland, Parsonsburg, Maryland, Friendship Heights Village, Maryland, Gaithersburg, Maryland, Lewistown, Maryland, Glen Burnie, Maryland, Eagle Harbor, Maryland, Crofton, Maryland, Havre De Grace, Maryland, Nanticoke Acres, Maryland, Damascus, Maryland, Westphalia, Maryland, Rock Hall, Maryland, Mount Aetna, Maryland, Savage, Maryland, Rockville, Maryland, Wheaton, Maryland, Tilghmanton, Maryland, Wildewood, Maryland, Paramount-long Meadow, Maryland, Brookeville, Maryland, Bagtown, Maryland, Clarksburg, Maryland, Girdletree, Maryland, Baltimore, Maryland, Woodmore, Maryland, Danville, Maryland, Ilchester, Maryland, Allen, Maryland, Washington Grove, Maryland, St. George Island, Maryland, Berwyn Heights, Maryland, Fort Meade, Maryland, Cedarville, Maryland, Maryland City, Maryland, Potomac Park, Maryland, St. Michaels, Maryland, Hampton, Maryland, Chillum, Maryland, Bryans Road, Maryland, Carroll County, Maryland, Chesapeake City, Maryland, Woodsboro, Maryland, Templeville, Maryland, Galestown, Maryland, Bier, Maryland, West Laurel, Maryland, Graceham, Maryland, Landover, Maryland, Timonium, Maryland, Fishing Creek, Maryland, Sykesville, Maryland, Burtonsville, Maryland, Deal Island, Maryland, Montgomery County, Maryland, Queen Anne, Maryland, Hughesville, Maryland, Tilghman Island, Maryland, Pecktonville, Maryland, Kent Narrows, Maryland, Stevensville, Maryland, Broomes Island, Maryland, Cresaptown, Maryland, Whitehaven, Maryland, Golden Beach, Maryland, North East, Maryland, Bartonsville, Maryland, Rising Sun, Maryland, Beaver Creek, Maryland, Loch Lynn Heights, Maryland, South Laurel, Maryland, Aspen Hill, Maryland, Romancoke, Maryland, White Marsh, Maryland, Summerfield, Maryland, Hyattsville, Maryland, Ocean Pines, Maryland, Quantico, Maryland, Lansdowne, Maryland, Glenn Dale, Maryland, Baltimore City County, Maryland, Marlboro Village, Maryland, Cecil County, Maryland, Glenarden, Maryland, Brookview, Maryland, Perryman, Maryland, Emmitsburg, Maryland, Nanticoke, Maryland, Caroline County, Maryland, Cheverly, Maryland, Luke, Maryland, Parkville, Maryland, Sudlersville, Maryland, Forestville, Maryland, Walkersville, Maryland, Long Beach, Maryland, Perry Hall, Maryland, Ernstville, Maryland, Annapolis Neck, Maryland, Little Orleans, Maryland, Reisterstown, Maryland, Queen Anne's County, Maryland, Denton, Maryland, Bel Air South, Maryland, Linthicum, Maryland, Gilmore, Maryland, Waldorf, Maryland, New Windsor, Maryland, Bowleys Quarters, Maryland, Bladensburg, Maryland, Chesapeake Beach, Maryland, Sharpsburg, Maryland, Calverton, Maryland, Prince Frederick, Maryland, Shady Side, Maryland, Snow Hill, Maryland, Bowie, Maryland, Crumpton, Maryland, Laurel, Maryland, North Laurel, Maryland, Chesapeake Ranch Estates, Maryland, Flower Hill, Maryland, Fairview, Maryland, Whaleyville, Maryland, Halfway, Maryland, Bishopville, Maryland, Colesville, Maryland, Yarrowsburg, Maryland, Garrett County, Maryland, North Bethesda, Maryland, Clarysville, Maryland, Powellville, Maryland, Darlington, Maryland, Chevy Chase View, Maryland, Secretary, Maryland, Montgomery Village, Maryland, Forest Heights, Maryland, Preston, Maryland, Chance, Maryland, St. Mary's County, Maryland, Green Valley, Maryland, Marlboro Meadows, Maryland, Worton, Maryland, Accident, Maryland, Elkton, Maryland, Goldsboro, Maryland, Smithsburg, Maryland, Jarrettsville, Maryland, Eden, Maryland, Mount Savage, Maryland, Eakles Mill, Maryland, Baltimore Highlands, Maryland, Thurmont, Maryland, Clinton, Maryland, Gambrills, Maryland, Bloomington, Maryland, Ballenger Creek, Maryland, Chevy Chase Section Three, Maryland, Maryland

Subject:

State government records

Resource Class:

Datasets and Web services

Resource Type:

Vector data

ISO Topic Category:

Inland Waters

Date Published:

2016-03-30

Temporal Coverage:

2016

Provider:

Maryland iMap

Format:

Shapefile