The monitoring network within this area

Hydrionis holds 346 values from 4 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

346

Values held

1899–2026

Record spans

Gauges within the Middle South Platte-Cherry Creek huc8 subbasin

4 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 SOUTH PLATTE RIVER AT DENVER, CO.

The highest instantaneous discharge the publisher recorded in each year — a flood peak as measured, not a daily average of one. 1899–2007.

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	SOUTH PLATTE RIVER AT DENVER, CO. (m³/s)
1899	40.2
1900	169
1903	35.1
1904	48.1
1905	62.3
1906	28.9
1909	144
1910	45.3
1911	82.1
1912	368
1913	113
1914	268
1915	74.2
1916	68.0
1917	68.0
1918	86.4
1919	132
1920	68.2
1921	249
1922	166
1923	119
1924	83.5
1925	37.1
1926	90.3
1927	53.5
1928	54.7
1929	60.6
1930	92.0
1931	75.9
1932	56.6
1933	623
1934	36.8
1935	348
1936	114
1937	150
1938	166
1939	136
1940	70.2
1941	113
1942	289
1943	39.6
1944	70.8
1945	178
1946	100.0
1947	111
1948	97.4
1949	249
1950	121
1951	155
1952	52.4
1953	121
1954	56.9
1955	108
1956	168
1957	139
1958	87.2
1959	54.7
1960	79.9
1961	62.3
1962	45.6
1963	133
1964	85.5
1965	1,141
1966	75.6
1967	155
1968	78.7
1969	597
1970	179
1971	88.6
1972	95.7
1973	498
1974	96.0
1975	215
1976	60.6
1977	60.0
1978	48.7
1979	121
1980	138
1981	49.3
1982	91.2
1983	187
1984	194
1985	234
1986	143
1987	345
1988	173
1989	119
1990	147
1991	211
1992	175
1993	77.0
1994	155
1995	239
1996	106
1997	176
1998	357
1999	146
2000	153
2001	244
2002	59.2
2003	73.3
2004	189
2005	141
2006	81.0
2007	199

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	1899–2007
Completeness	96.3% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps	2 separate periods inside 1899–2007 hold no value. The longest runs from 1901 to 1902 — 2 years with no reading. They are drawn as breaks in the line and are never interpolated across.
Continuity	The record begins in 1899 and is not continuous from it: 109 years separate the first value from the last, and 96% 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

Every gauge Hydrionis holds within this area

Gauges within the Middle South Platte-Cherry Creek and what each holds
Gauge	Measures	Values	Record
SOUTH PLATTE RIVER AT DENVER, CO.	catchment area, annual maximum river flow	106	1899–2026
SOUTH PLATTE RIVER NEAR KERSEY, CO	catchment area, annual maximum river flow	104	1902–2026
SOUTH PLATTE RIVER AT HENDERSON, CO	catchment area, annual maximum river flow	83	1926–2026
SOUTH PLATTE RIVER AT FORT LUPTON, CO.	catchment area, annual maximum river flow	53	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 — 10190003. 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
SOUTH PLATTE RIVER AT DENVER, CO.	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
SOUTH PLATTE RIVER NEAR KERSEY, CO	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
SOUTH PLATTE RIVER AT HENDERSON, CO	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
SOUTH PLATTE RIVER AT FORT LUPTON, CO.	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 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	4	yes, 3 or more
Years spanned	128	yes, 20 or more
Values held	346	no
Distinct measurements	2	yes, 2 or more
Publishers measuring it	1	no
Official identifiers	1	recorded, not counted

Use this data

Machine-readable JSON /api/v1/observations/by-subject/gauge-usgs-06714000.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 South Platte-Cherry Creek gauge records, accessed 2026-10-05, hydrionis.com/waters/united-states-middle-south-platte-cherry-creek/

Cite Hydrionis where you rely on the compilation, the normalisation, the eligibility judgements or a chart. Where you use an unmodified published value, the publisher’s attribution is the one that is required; crediting Hydrionis as well is welcome and is not something Hydrionis can require of you.

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 South Platte-Cherry Creek 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 confidence2007-05-14

Source: USGS — National Water Information System, USGS site 06714000, 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.