thalweg principle

E523959

The thalweg principle is a rule in international boundary delimitation that places borders along the deepest or most navigable channel of a river.

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Statements (45)

Predicate Object
instanceOf boundary delimitation rule
principle of international law
aimsTo ensure equal access to navigation for riparian states
provide a stable criterion for river boundaries
appliesPrimarilyTo navigable sections of rivers
appliesTo international river boundaries
appliesToFeature main navigable channel
river channel
appliesWhen a river forms a boundary between two states
associatedWithDoctrine accretion and erosion in boundary rivers
basedOnConcept thalweg
canAffect allocation of islands in boundary rivers
maritime access of landlocked or semi-enclosed states
contrastedWith bank-based boundary delimitation
fixed-border treaties that ignore channel shifts
definesLocationOf international boundaries along rivers
etymology from German "Talweg" meaning "valley way" or "valley line"
goal fair and practical river boundary delimitation
hasInterpretationIssue identification of the "main" channel in braided rivers
treatment of artificial changes to river courses
historicallyImportantIn European river boundary settlements
influencedBy navigation interests of riparian states
involves hydrographic surveys
identification of the line of greatest depth
languageOrigin German
legalField international boundary law
law of international watercourses
mayBeLimitedBy historic title claims
specific boundary treaties
recognizedIn customary international law
relatedLegalConcept international river navigation rights
riparian rights
relatedTo equidistance principle
median line principle
river boundary delimitation
requires periodic reassessment when channels shift
supportsDoctrine boundary follows natural changes in river course
typicalApplication boundary rivers with shifting channels
navigable rivers
usedBy boundary commissions
international courts and tribunals
usedFor delimitation of river frontiers between states
demarcation of boundaries in navigable rivers
usesCriterion deepest channel of a river
most navigable channel of a river

Referenced by (1)

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

1975 Algiers Agreement principleUsed thalweg principle