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uses the "River Mile System of Ohio", which is "a method to reference locations on streams and rivers of Ohio". This work began by hand measurements on paper maps between 1972 and 1975 and has since been converted to a computer-based electronic version, which now covers the state in 787 river mile
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and water quality measurement sites are referenced via river miles. Ohio uses one of two systems. The simplest is just the name of the river and the location in river miles. In cases where there is ambiguity, for example when more than one stream has the same name, it uses a series of river mile
77:
The river mile is not the same as the length of the river, rather it is a means of locating any feature along the river relative to its distance from the mouth, when measured along the course (or navigable channel) of the river.
74:, except that river miles are rarely marked on the physical river; instead they are marked on navigation charts, and topographic maps. Riverfront properties are sometimes partially legally described by their river mile.
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Another example of a River Mile System is utilized by the U.S. Bureau of
Reclamation, in New Mexico, on the Rio Grande. The river miles in Central New Mexico are measured from Caballo Dam upstream to near
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area, mouth coordinates, and river mile, specifically the distance from the mouth of the tributary to the mouth of its parent stream. Some islands are named for their river mile distance, for example the
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167:, New Mexico. For example, a river mile sign in the Albuquerque Bosque (part of Albuquerque's Open Space Park) is River Mile 184, approximately 184 miles above
89:) has its river mile zero at the edge of the navigable channel in the Columbia, some 900 feet (270 m) beyond the mouth. Also, the river mile zero for the
374:
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171:. As mentioned earlier in this system the further you go up stream the higher the river mile number. This system is measured in 10ths of a mile.
344:
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Allegheny River Chart No. 5 (Pennsylvania, Allegheny County): Twelve Mile Island, Fourteen Mile Island, C.W. Bill Young Lock & Dam Pool
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in
Pennsylvania has Six Mile Island, Nine Mile Island, Twelve Mile Island, and Fourteen Mile Island. (The last two islands form
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117:, lists every named stream and every unnamed stream in a named geographic feature in the state, and gives the
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62:. River mile numbers begin at zero and increase further upstream. The corresponding metric unit using
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97:, where the main stem of the Mississippi splits into three major branches before flowing into the
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253:"Lower Mississippi River Ports and Waterways Safety System (PAWSS) RF Coverage Test Results"
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101:. Mileages are indicated as AHP (Above Head of Passes) or BHP (Below Head of Passes).
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River Mile 184 sign in the Bosque along the Rio Grande in the
Albuquerque Open Space
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42:- the island is named for its distance from the river's mouth in river miles.
276:"Site: PGHBW 4-3, A View of the Point from Grandview Avenue, Pittsburgh, PA"
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375:"Three Rivers Conservation Plan, Chapter One: Project Area Characteristics"
214:. Pennsylvania Department of Environmental Protection. 2001. Archived from
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130:, although Fourteen Mile Island was split into two parts by a dam).
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River mile zero may not be exactly at the mouth. For example, the
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strings referring to the distance to the ocean along either the
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River miles are used in a variety of ways. The
Commonwealth of
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Pennsylvania
Department of Conservation and Natural Resources
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Pennsylvania
Department of Conservation and Natural Resources
319:, Pittsburgh District. January 2004. Archived from
251:Sole, Robert L.; et al. (November 1999).
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8:
419:, Division of Surface Water. Archived from
186:uses river miles for its navigation maps.
70:. They are analogous to vehicle roadway
27:Measurement of distance from river mouth
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282:, Department of Geology. Archived from
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138:maps. Locations of facilities such as
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417:Ohio Environmental Protection Agency
373:Pennsylvania Environmental Council.
240:this map of the Willamette's mouth
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208:Pennsylvania Gazetteer of Streams
115:Pennsylvania Gazetteer of Streams
345:"Allegheny Islands State Park"
1:
450:Delaware River Mileage System
445:Waterway Mile Marker Database
317:U.S. Army Corps of Engineers
184:U.S. Army Corps of Engineers
128:Allegheny Islands State Park
50:is a measure of distance in
413:"River Mile System of Ohio"
140:wastewater treatment plants
85:(which discharges into the
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105:Uses in the United States
280:University of Pittsburgh
91:Lower Mississippi River
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157:Saint Lawrence Seaway
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36:Fourteen Mile Island
315:(Map). 1' - 1500".
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391:on March 28, 2006
149:Mississippi River
16:(Redirected from
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83:Willamette River
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124:Allegheny River
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68:river kilometer
40:Allegheny River
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18:River kilometer
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439:External links
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119:drainage basin
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99:Gulf of Mexico
95:Head of Passes
93:is located at
87:Columbia River
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133:The state of
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425:. Retrieved
421:the original
393:. Retrieved
386:the original
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357:. Retrieved
353:the original
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328:. Retrieved
321:the original
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288:. Retrieved
284:the original
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259:. Retrieved
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223:. Retrieved
216:the original
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111:Pennsylvania
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72:mile markers
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169:Caballo Dam
475:Topography
459:Categories
427:2008-04-11
395:2008-04-11
359:2008-04-11
330:2007-08-25
290:2008-04-11
261:2010-10-08
225:2008-04-11
190:References
145:Ohio River
64:kilometers
48:river mile
470:Hydrology
155:(and the
153:Lake Erie
58:from its
480:Distance
54:along a
34:Part of
66:is the
38:in the
465:Rivers
165:Embudo
389:(PDF)
378:(PDF)
324:(PDF)
313:(PDF)
256:(PDF)
219:(PDF)
212:(PDF)
147:(and
60:mouth
56:river
52:miles
238:See
182:The
135:Ohio
159:).
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198:^
46:A
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20:)
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