Seine River (Manitoba)
tributary of Red River in Manitoba, Canada
The Seine River (French: Rivière Seine) is a tributary of the Red River of the North that runs through southeastern Manitoba, Canada. It is one of the four rivers that flows in the city of Winnipeg.
The river's source is in the Sandilands Provincial Forest near Steinbach and passes by or through the communities of Marchand, La Broquerie, Ste. Anne, and Lorette before reaching the Red River Floodway near the Winnipeg city limits. At this point the river's channel is diverted under the Floodway into what is known as the "Seine River Siphon", which allows a flow of up to 4.5 cubic metres per second (160 cu ft/s); any additional flow is diverted onto the Floodway. During a wet spring, the river often overflows its banks, sometimes flooding nearby houses. During a dry summer, the river can be reduced to a trickle in Winnipeg, due to the water which is diverted away. A project to improve the flow of water through the floodway siphon was completed in 2010 and increased the flow of water, reducing the number of dry years on the river in Winnipeg.
Within the city, the Seine travels a meandering course, reaching the Red River at St. Boniface just north of The Forks after passing through Niakwa Country Club, St.
The public source identifies “Seine River (Manitoba)” as tributary of Red River in Manitoba, Canada. This brief keeps that definition visible, then builds a research path around Seine, River and Manitoba.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Seine River (Manitoba)”, the useful work is to connect “tributary of Red River in Manitoba, Canada” to the records capable of establishing context and consequence.
The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Aug 31, 2026. The linked authority identifier is Q3477924. Authority coordinates are 49.900, -97.109. 1 of 2 selected statements include explicit references; 2 carry qualifiers and 0 use preferred rank. The first chronological checks are 2010.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Seine River (Manitoba)”, its source revision and the description used here.
- Expand the search: follow Seine River (Manitoba) primary sources, Seine River (Manitoba) archive and Seine research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Seine River (Manitoba)”?
- Which authority defined the place, boundary or structure at the relevant date?
- Which earlier names or jurisdictions may reveal additional records?
Search terms from this dossier
This entry incorporates text from “Seine River (Manitoba)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.