Monongahela River

E54914
river waterway

The Monongahela River is a major waterway in the Appalachian region of the United States that flows north from West Virginia into Pennsylvania, where it joins the Allegheny River at Pittsburgh to form the Ohio River.

Jump to: Surface forms Statements Referenced by

Observed surface forms (2)

Surface form Occurrences
Monongahela River Valley 4
Monongahela River watershed 1

Statements (50)

Predicate Object
instanceOf river ⓘ
waterway ⓘ
basinCountry United States of America ⓘ
surface form: United States
cityAtMouth Pittsburgh, Pennsylvania ⓘ
surface form: Pittsburgh
confluenceLocation Pittsburgh, Pennsylvania ⓘ
surface form: Pittsburgh
confluenceWith Allegheny River ⓘ
country United States of America ⓘ
surface form: United States
drainageBasin Monongahela River Valley ⓘ
surface form: Monongahela River basin
elevationAtMouth approximately 710 feet ⓘ
elevationAtSource approximately 1,900 feet ⓘ
etymology derived from a Native American word often interpreted as meaning "falling banks" ⓘ
flowsDirection north ⓘ
flowsThrough Pennsylvania ⓘ
West Virginia ⓘ
formsBorderBetween some counties in Pennsylvania ⓘ
some counties in West Virginia ⓘ
hasBridge Fort Pitt Bridge NERFINISHED ⓘ
Liberty Bridge NERFINISHED ⓘ
Smithfield Street Bridge ⓘ
hasCrossing Monongahela Incline (adjacent crossing area) ⓘ
hasLockAndDamSystem yes ⓘ
hasUse industrial transport ⓘ
navigation ⓘ
recreation ⓘ
water supply ⓘ
historicalSignificance important route for coal transport ⓘ
site of industrial development in Pittsburgh region ⓘ
length approximately 130 miles ⓘ
approximately 210 kilometers ⓘ
locatedIn Appalachian Plateau ⓘ
surface form: Allegheny Plateau

Appalachian Mountains ⓘ
Appalachia ⓘ
surface form: Appalachian region
majorTributary Tygart Valley River ⓘ
West Fork River ⓘ
Youghiogheny River ⓘ
nameLanguage Lenape ⓘ
navigationAuthority U.S. Army Corps of Engineers ⓘ
partOf Ohio River basin ⓘ
passesThrough Brownsville, Pennsylvania ⓘ
Fairmont, West Virginia ⓘ
McKeesport ⓘ
surface form: McKeesport, Pennsylvania

Morgantown, West Virginia, United States ⓘ
surface form: Morgantown, West Virginia

Pittsburgh, Pennsylvania ⓘ
region Appalachia ⓘ
surface form: Northern Appalachia
riverMouth Ohio River ⓘ
riverSystem Mississippi River basin ⓘ
surface form: Mississippi River watershed
sourceLocation West Virginia ⓘ
state Pennsylvania ⓘ
West Virginia ⓘ
tributaryOf Ohio River ⓘ

Referenced by (22)

Full triples — surface form annotated when it differs from this entity's canonical label.

Allegheny County → contains → Monongahela River ⓘ
Panhandle Bridge at Pittsburgh → crosses → Monongahela River ⓘ
subject surface form: Panhandle Bridge
Allegheny River → formsConfluenceWith → Monongahela River ⓘ
Pennsylvania → hasMajorRiver → Monongahela River ⓘ
Washington County → hasMajorRiver → Monongahela River ⓘ
subject surface form: Washington County, Pennsylvania
Fayette County → hasRiver → Monongahela River ⓘ
Westmoreland County, Pennsylvania → hasRiver → Monongahela River ⓘ
Hurricane Agnes 1972 → impactedRiver → Monongahela River ⓘ
subject surface form: Hurricane Agnes (1972)
Braddock, Pennsylvania → locatedIn → Monongahela River ⓘ
this entity surface form: Monongahela River Valley
Duquesne, Pennsylvania → locatedIn → Monongahela River ⓘ
this entity surface form: Monongahela River Valley
Mon Valley Works → locatedIn → Monongahela River ⓘ
this entity surface form: Monongahela River Valley
Braddock, Pennsylvania → locatedOn → Monongahela River ⓘ
Homestead, Pennsylvania → locatedOn → Monongahela River ⓘ
subject surface form: Morgantown, West Virginia
West Virginia → majorRiver → Monongahela River ⓘ
Homestead, Pennsylvania → partOf → Monongahela River ⓘ
this entity surface form: Monongahela River Valley
Duquesne, Pennsylvania → river → Monongahela River ⓘ
Pittsburgh region → river → Monongahela River ⓘ
Ohiopyle State Park → riverSystem → Monongahela River ⓘ
this entity surface form: Monongahela River watershed
Ohio River → sourceRiver → Monongahela River ⓘ