The monitoring network within this area

Hydrionis holds 1,051 values from 3 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

1,051

Values held

1877–2026

Record spans

Gauges within the Middle Kansas huc8 subbasin

3 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 KANSAS R AT TOPEKA, KS

The highest instantaneous discharge the publisher recorded in each year — a flood peak as measured, not a daily average of one. 1877–2025.

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	KANSAS R AT TOPEKA, KS (m³/s)
1877	2,718
1902	2,832
1903	8,495
1904	3,681
1905	1,303
1906	680
1907	623
1908	5,663
1909	1,416
1911	1,048
1912	1,359
1913	878
1914	765
1915	2,718
1916	1,076
1917	1,472
1918	691
1919	1,926
1920	736
1921	1,220
1922	1,121
1923	2,087
1924	527
1925	725
1926	1,065
1927	1,897
1928	1,070
1929	1,934
1930	1,954
1931	756
1933	464
1934	300
1935	4,361
1936	481
1937	481
1938	957
1939	759
1940	237
1941	2,888
1943	2,860
1944	2,798
1945	2,733
1946	1,229
1947	2,132
1948	2,090
1949	1,543
1950	2,667
1951	13,281
1952	1,348
1953	476
1954	1,008
1955	311
1956	504
1957	1,339
1958	1,611
1959	1,288
1960	2,095
1961	2,192
1962	1,314
1963	337
1964	784
1965	1,985
1967	2,517
1968	1,144
1969	1,787
1970	1,620
1971	1,068
1972	1,090
1973	2,330
1975	1,218
1976	985
1977	1,455
1978	561
1979	1,240
1980	1,894
1981	906
1982	2,050
1983	1,192
1984	1,965
1985	850
1987	1,637
1988	309
1989	1,688
1990	883
1991	682
1992	1,240
1993	4,814
1995	2,733
1996	1,257
1997	1,382
1998	1,068
2000	362
2001	1,269
2002	365
2003	238
2004	841
2005	1,914
2007	2,594
2008	1,036
2009	1,662
2010	1,220
2011	2,027
2013	697
2014	991
2015	2,124
2016	2,296
2017	1,305
2018	487
2019	2,512
2020	949
2021	1,147
2022	1,368
2023	181
2024	583
2025	306

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	1877–2025
Completeness	77.2% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps	11 separate periods inside 1877–2025 hold no value. The longest runs from 1878 to 1901 — 24 years with no reading. They are drawn as breaks in the line and are never interpolated across.
Continuity	The record begins in 1877 and is not continuous from it: 149 years separate the first value from the last, and 77% of the years between them are held. The span is not the record.
Last read from the publisher	2026-10-01
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 KANSAS R AT TOPEKA, KS, as a depth

The year's flow spread over the land draining to this gauge, in millimetres — the same unit rainfall is measured in. 1919–2025.

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	KANSAS R AT TOPEKA, KS (mm)
1919	38.0
1920	19.0
1921	17.0
1922	17.0
1923	34.0
1924	14.0
1925	15.0
1926	19.0
1927	45.0
1928	36.0
1929	37.0
1930	32.0
1931	21.0
1932	23.0
1933	14.0
1934	8.00
1935	40.0
1936	14.0
1937	14.0
1938	22.0
1939	15.0
1940	8.00
1941	50.0
1942	49.0
1943	34.0
1944	61.0
1945	63.0
1946	33.0
1947	44.0
1948	37.0
1949	57.0
1950	55.0
1951	146
1952	36.0
1953	11.0
1954	15.0
1955	9.00
1956	6.00
1957	30.0
1958	47.0
1959	35.0
1960	53.0
1961	53.0
1962	46.0
1963	17.0
1964	14.0
1965	41.0
1966	13.0
1967	33.0
1968	25.0
1969	48.0
1970	21.0
1971	30.0
1972	20.0
1973	117
1974	38.0
1975	28.0
1976	18.0
1977	30.0
1978	33.0
1979	47.0
1980	26.0
1981	19.0
1982	50.0
1983	40.0
1984	57.0
1985	40.0
1986	54.0
1987	68.0
1988	11.0
1989	16.0
1990	22.0
1991	10.0
1992	37.0
1993	163
1994	31.0
1995	62.0
1996	38.0
1997	29.0
1998	59.0
1999	53.0
2000	15.0
2001	36.0
2002	11.0
2003	10.0
2004	19.0
2005	21.0
2006	9.00
2007	40.0
2008	45.0
2009	28.0
2010	49.0
2011	27.0
2012	13.0
2013	16.0
2014	15.0
2015	38.0
2016	38.0
2017	35.0
2018	35.0
2019	112
2020	40.0
2021	26.0
2022	19.0
2023	7.00
2024	13.0
2025	13.0

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	1919–2025
Completeness	100.0% of the periods in that span are held.
Continuity	Continuous: every year from 1919 to 2025 is held.
Inputs last read	2026-10-01 · when the records this was computed from were last read from their publishers
Calculation date	2026-08-24 · when the calculation method was last versioned, not a reading of any publisher
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 Middle Kansas and what each holds
Gauge	Measures	Values	Record
KANSAS R AT TOPEKA, KS	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	376	1877–2026
KANSAS R AT WAMEGO, KS	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	362	1902–2026
SOLDIER C NR TOPEKA, KS	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	313	1929–2026

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 — 10270102. 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
KANSAS R AT TOPEKA, KS	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	2026-10-02
KANSAS R AT WAMEGO, KS	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	2026-10-02
SOLDIER C NR TOPEKA, KS	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	2026-10-02

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 5 of them, which makes it a full profile.

Information-gain signals held for this water body
Signal	Held	Counts
Gauges holding a real record	3	yes, 3 or more
Years spanned	150	yes, 20 or more
Values held	1,051	yes, 1000 or more
Distinct measurements	5	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-06889000.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), Middle Kansas gauge records, accessed 2026-10-05, hydrionis.com/waters/united-states-middle-kansas/

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 Middle Kansas 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 confidence2025-06-04

Source: USGS — National Water Information System, USGS site 06889000, 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 1 October 2026.