The monitoring network within this area

Hydrionis holds 471 values from 2 gauges within it. Discharge is a property of a gauge and its reach, not of this drainage area, so this page reports the network and its records rather than a single figure.

Gauges

471

Values held

1913–2026

Record spans

Gauges within the Upper Chippewa huc8 subbasin

2 monitoring points, positioned as the publisher records them.

Flood peaks, as measured

This gauge's flood record, as measured. Unlike a daily mean it is the discharge at the moment the river was highest, which is the figure flood frequency analysis is built on.

Largest measured flow of each year at CHIPPEWA RIVER NEAR BRUCE, WI

The highest instantaneous discharge the publisher recorded in each year — a flood peak as measured, not a daily average of one. 1914–2025.

Show relevant events (1 event)Shading marks when something was recorded, not what caused the line.

Published by the gauge's own operator from its sub-daily record; Hydrionis stores the figure rather than recomputing it. A year the gauge did not cover produces no value rather than a low one, and the gaps are stated below the chart. A peak is a property of this gauge and its reach: a larger flood upstream or downstream of it is not in this series.

What the shaded periods are (1 event)

A shaded period marks when something was recorded, not what caused the shape of the line. Where the two coincide, they coincided.

Documented record — A documented event, compiled from cited sources after it happened. The dates are as good as the record, which for older events can mean the month rather than the day.

Event	Type	Period	Standing	Authority
Hurricane Katrina water and sanitation collapse	Flood	2005-08-29 – 2005-09-30	Documented record	Compiled record

Not shown on this chart

The 1976 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
The 2022 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Yorkshire drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cantareira water crisis, São Paulo — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cape Town Day Zero — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
European drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.

View the data behind this chart

Underlying data
Period	CHIPPEWA RIVER NEAR BRUCE, WI (m³/s)
1914	247
1915	170
1916	385
1917	205
1918	270
1919	246
1920	399
1921	249
1922	428
1923	257
1924	320
1925	103
1926	365
1927	311
1928	229
1930	95.7
1931	98.5
1932	225
1933	127
1934	225
1935	391
1936	343
1937	167
1938	340
1939	351
1940	199
1941	731
1942	289
1943	481
1944	226
1945	394
1946	311
1947	153
1948	169
1949	208
1950	337
1951	354
1952	273
1953	411
1954	549
1956	337
1957	131
1958	269
1959	192
1960	326
1961	215
1962	169
1963	105
1964	123
1965	348
1966	241
1967	538
1968	371
1969	278
1970	294
1971	430
1972	233
1973	484
1974	277
1975	260
1976	354
1977	309
1978	212
1979	225
1980	267
1981	223
1982	314
1983	385
1984	197
1985	196
1986	496
1989	144
1990	340
1991	283
1993	360
1994	821
1995	220
1996	399
1997	345
1998	334
1999	262
2000	357
2001	464
2002	501
2003	430
2004	249
2005	286
2007	99.4
2008	279
2009	105
2010	345
2011	323
2012	210
2013	337
2014	331
2015	146
2016	360
2017	487
2018	464
2019	439
2020	334
2021	169
2022	243
2023	583
2024	225
2025	283

About this series

Everything below is a property of the data rather than a rating of it. There is deliberately no single confidence score: how much a gap matters depends on what you are about to do with the series, and only you know that.

Source	United States Geological Survey — National Water Information System · US Government work — public domain
How the values came to exist	Measured
Period held	1914–2025
Completeness	94.6% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps	5 separate periods inside 1914–2025 hold no value. The longest runs from 1987 to 1988 — 2 years with no reading. They are drawn as breaks in the line and are never interpolated across.
Continuity	The record begins in 1914 and is not continuous from it: 112 years separate the first value from the last, and 95% of the years between them are held. The span is not the record.
Last read from the publisher	2026-08-31
Redistribution	Permitted by the upstream licences
Commercial reuse	Permitted by the upstream licences. No Hydrionis access tier can widen this.
Methodology	How this was produced

How much of the rain came back out

A discharge in cubic metres per second cannot be compared with anything: the larger number may only mean the larger catchment. Divided by the area draining to the gauge it becomes a depth of water over that land, which answers a question a reader already has — of the rain that fell here, how much came back out as river?

Water leaving the catchment above CHIPPEWA RIVER AT BISHOPS BRIDGE NEAR WINTER, WI, as a depth

The year's flow spread over the land draining to this gauge, in millimetres — the same unit rainfall is measured in. 1913–2025.

Show relevant events (1 event)Shading marks when something was recorded, not what caused the line.

Computed by Hydrionis from the published annual mean flow and the catchment area the station's own publisher states. It is not a water balance: the difference between rainfall and runoff is not evaporation alone but also change in groundwater storage, water abstracted and taken elsewhere, and water imported by transfer schemes — which is why a catchment can yield more runoff than the rain that fell on it without anything being measured wrongly. A different area figure rescales every value here by the ratio between them.

What the shaded periods are (1 event)

A shaded period marks when something was recorded, not what caused the shape of the line. Where the two coincide, they coincided.

Documented record — A documented event, compiled from cited sources after it happened. The dates are as good as the record, which for older events can mean the month rather than the day.

Event	Type	Period	Standing	Authority
Hurricane Katrina water and sanitation collapse	Flood	2005-08-29 – 2005-09-30	Documented record	Compiled record

Not shown on this chart

The 1976 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
The 2022 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Yorkshire drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cantareira water crisis, São Paulo — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cape Town Day Zero — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
European drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.

View the data behind this chart

Underlying data
Period	CHIPPEWA RIVER AT BISHOPS BRIDGE NEAR WINTER, WI (mm)
1913	479
1914	344
1915	380
1916	401
1917	286
1918	241
1919	367
1920	335
1921	263
1922	312
1923	153
1924	224
1925	264
1926	254
1927	365
1928	409
1929	338
1930	199
1931	227
1932	233
1933	171
1934	144
1935	319
1936	265
1937	277
1938	354
1939	429
1940	234
1941	451
1942	424
1943	387
1944	383
1945	396
1946	328
1947	330
1948	174
1949	196
1950	346
1951	438
1952	441
1953	333
1954	424
1955	369
1956	262
1957	224
1958	242
1959	299
1960	345
1961	230
1962	274
1963	174
1964	204
1965	342
1966	344
1967	403
1968	406
1969	303
1970	234
1971	317
1972	449
1973	408
1974	328
1975	275
1976	245
1977	310
1978	310
1979	307
1980	274
1981	339
1982	399
1983	400
1984	379
1985	530
1986	396
1987	128
1988	166
1989	202
1990	254
1991	438
1992	363
1993	342
1994	325
1995	330
1996	541
1997	315
1998	229
1999	288
2000	238
2001	362
2002	474
2003	267
2004	337
2005	230
2006	228
2007	154
2008	250
2009	145
2010	311
2011	299
2012	273
2013	391
2014	490
2015	337
2016	496
2017	504
2018	429
2019	547
2020	462
2021	229
2022	311
2023	356
2024	243
2025	222

About this series

Source	United States Geological Survey — National Water Information System · US Government work — public domain
How the values came to exist	Derived Computed by Hydrionis
Period held	1913–2025
Completeness	100.0% of the periods in that span are held.
Continuity	Continuous: every year from 1913 to 2025 is held.
Last read from the publisher	2026-08-24
Redistribution	Permitted by the upstream licences
Commercial reuse	Permitted by the upstream licences. No Hydrionis access tier can widen this.
Methodology	How this was produced

Every gauge Hydrionis holds within this area

Gauges within the Upper Chippewa and what each holds
Gauge	Measures	Values	Record
CHIPPEWA RIVER AT BISHOPS BRIDGE NEAR WINTER, WI	burned area within 50 km, catchment area, annual maximum river flow, mean river flow	247	1913–2026
CHIPPEWA RIVER NEAR BRUCE, WI	catchment area, annual maximum river flow, mean river flow	224	1914–2026

How these gauges were attached to this water

Assigned by the publisher to a numbered basin Every gauge here is assigned to this drainage area by its own publisher, which issues the area an official code — 07050001. A drainage area is not a river: it contains the tributaries as well as the main channel, and a gauge in it may be on any of them.

What each gauge’s link to this water rests on
Gauge	Evidence	Established
CHIPPEWA RIVER AT BISHOPS BRIDGE NEAR WINTER, WI	Stated by the publisher — USGS site service, huc_cd field — https://waterservices.usgs.gov/nwis/site/ ; named from the USGS Watershed Boundary Dataset 8-digit HU (Subbasin) layer — https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer/4	2026-08-26
CHIPPEWA RIVER NEAR BRUCE, WI	Stated by the publisher — USGS site service, huc_cd field — https://waterservices.usgs.gov/nwis/site/ ; named from the USGS Watershed Boundary Dataset 8-digit HU (Subbasin) layer — https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer/4	2026-08-26

What this record holds

Hydrionis decides which waters get a page, and which of those are offered to search, from what is actually held rather than from how the page reads. Five signals are counted; this record has 3 of them, which makes it a full profile.

Information-gain signals held for this water body
Signal	Held	Counts
Gauges holding a real record	2	no
Years spanned	114	yes, 20 or more
Values held	471	no
Distinct measurements	4	yes, 2 or more
Publishers measuring it	2	yes, 2 or more
Official identifiers	1	recorded, not counted

Use this data

Machine-readable JSON /api/v1/observations/by-subject/gauge-usgs-05356000.json
How to cite this, and who you must credit
How these figures were produced
Request this at a different scale, format or geography

No bulk download is offered here, which is a licence position rather than a product one: at least one contributing publisher does not permit redistribution. The values can be read on the page, cited, and pointed to at source.

Attribution and citation

Suggested citation for Hydrionis

Hydrionis (2026), Upper Chippewa gauge records, accessed 2026-09-02, hydrionis.com/waters/united-states-upper-chippewa/

Cite Hydrionis where you rely on values Hydrionis computed, on the method that produced them, or on the compilation itself. The underlying measurements remain the publishers’ and their attribution requirements apply to you directly.

Recommended, not required. Hydrionis does not claim rights over unmodified public data it relayed, and doing arithmetic on somebody else’s measurements does not make them Hydrionis’s. Cite the version and the access date: the Upper Chippewa gauge records changes as publishers release and as methods are revised, and a citation without both cannot be checked later. Full guidance is on cite and reuse.

None of the contributing licences requires attribution. Crediting the publishers is still good practice and they are listed above.

Where these figures come from

MeasuredHigh confidence2025-06-30

Source: USGS — National Water Information System, USGS site 05356000, annual peak streamflow. Licence: Open.

Method: The instantaneous maximum discharge of each water year as published by USGS, dated to the day it occurred. One value per October-to-September water year; where the publisher lists both a systematic and a historic peak for a year, the larger is the annual maximum. Values the publisher marks as maximum daily averages are not held here, because they are not instantaneous peaks. Values marked as bounded rather than measured are held as censored observations carrying the bound. Cubic feet per second are converted to cubic metres per second and the publisher unit is recorded alongside.

Rating curves are extrapolated at extreme discharges, so the largest values in a peak series carry the largest measurement uncertainty. Data from the U.S. Geological Survey National Water Information System, a work of the United States government and therefore in the public domain.

Retrieved 31 August 2026.