Sevier Bridge Reservoir, UT — storage

Storage now, against this reservoir's own record

153.60 Mm³

Stored, April 1992

45th

Percentile among 72 Aprs on record

Storage in April 1992 was around the middle of the Apr record, ranked against 72 other Aprs held for this reservoir.

No percentage departure from the Apr average is published here. No long-term average is held for this month, so there is nothing to compare with.

Storage, 1920–1992

Monthly mean storage

812 monthly values, 1920 to 1992

Monthly means of the publisher's daily record. Volume, not percentage of capacity — see below for why.

What the shaded periods are (0 events)

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

240 of 812 periods, evenly spaced across the record. Every value is in the download and the API; a table of all 812 would be longer than this page and unusable with a screen reader.
Period	Sevier Bridge Reservoir Near Juab, UT (Mm³)
October 1920	36.4
January 1921	119
May 1921	195
August 1921	102
December 1921	146
March 1922	242
June 1922	303
October 1922	178
January 1923	250
May 1923	240
August 1923	103
November 1923	101
March 1924	217
June 1924	135
October 1924	14.1
January 1925	81.1
April 1925	132
August 1925	22.8
November 1925	32.7
February 1926	90.2
June 1926	51.1
September 1926	5.90
January 1927	57.6
April 1927	98.6
July 1927	18.5
November 1927	15.2
February 1928	63.3
June 1928	40.8
September 1928	1.65
December 1928	32.1
April 1929	90.7
July 1929	23.7
November 1929	22.6
February 1930	77.3
May 1930	79.9
September 1930	24.6
December 1930	45.1
April 1931	99.9
July 1931	22.6
October 1931	0
March 1932	55.5
June 1932	27.5
October 1932	5.51
January 1933	37.7
April 1933	76.7
August 1933	4.78
November 1933	3.91
February 1934	47.9
June 1934	11.6
September 1934	0
January 1935	19.3
April 1935	39.2
July 1935	7.93
November 1935	4.80
February 1936	35.6
June 1936	24.3
September 1936	10.1
December 1936	27.9
April 1937	89.5
July 1937	41.5
November 1937	25.3
February 1938	81.9
May 1938	106
September 1938	57.3
December 1938	114
April 1939	187
July 1939	77.7
October 1939	63.6
May 1940	124
August 1940	36.8
December 1940	60.5
March 1941	106
June 1941	125
October 1941	84.7
January 1942	174
April 1942	276
August 1942	176
November 1942	181
March 1943	262
June 1943	192
December 1943	145
May 1944	251
August 1944	181
December 1944	192
March 1945	254
June 1945	245
October 1945	199
January 1946	259
May 1946	254
August 1946	153
November 1946	160
March 1947	241
June 1947	207
October 1947	154
January 1948	216
April 1948	286
August 1948	164
November 1948	159
March 1949	242
June 1949	200
September 1949	111
January 1950	178
April 1950	220
December 1950	104
May 1951	130
November 1951	19.2
March 1952	94.0
June 1952	231
September 1952	167
January 1953	221
April 1953	280
August 1953	127
November 1953	119
February 1954	176
June 1954	124
September 1954	43.8
January 1955	84.7
April 1955	133
July 1955	35.4
December 1955	30.6
March 1956	72.6
September 1956	2.92
January 1957	29.8
April 1957	72.0
August 1957	52.5
November 1957	66.2
March 1958	142
June 1958	104
September 1958	35.8
January 1959	85.4
April 1959	129
August 1959	12.6
November 1959	20.9
February 1960	56.9
June 1960	31.5
September 1960	0.343
December 1960	21.1
May 1961	50.8
August 1961	0.934
January 1962	36.2
April 1962	94.3
August 1962	13.3
March 1963	79.7
August 1963	13.3
December 1963	31.2
March 1964	63.2
June 1964	51.2
October 1964	16.5
January 1965	45.0
May 1965	55.6
August 1965	41.7
November 1965	66.4
March 1966	150
June 1966	70.0
October 1966	27.3
January 1967	61.5
April 1967	103
August 1967	32.0
November 1967	49.2
March 1968	119
June 1968	101
September 1968	59.2
January 1969	112
April 1969	209
August 1969	150
November 1969	172
February 1970	259
June 1970	239
September 1970	153
December 1970	208
April 1971	286
July 1971	167
November 1971	143
February 1972	202
May 1972	185
September 1972	77.5
December 1972	114
April 1973	189
July 1973	212
October 1973	161
February 1974	256
May 1974	266
September 1974	123
December 1974	161
March 1975	213
July 1975	184
October 1975	129
February 1976	204
May 1976	204
August 1976	83.0
December 1976	111
March 1977	154
July 1977	65.4
October 1977	49.3
January 1978	79.8
May 1978	111
August 1978	21.8
November 1978	40.4
March 1979	114
June 1979	132
October 1979	82.9
January 1980	131
April 1980	244
August 1980	197
December 1980	253
April 1981	286
July 1981	178
October 1981	148
February 1982	232
May 1982	259
September 1982	150
December 1982	247
March 1983	289
July 1983	249
October 1983	152
February 1984	256
May 1984	278
August 1984	174
December 1984	223
March 1985	265
July 1985	247
October 1985	236
January 1986	254
May 1986	272
August 1986	216
November 1986	241
March 1987	285
June 1987	216
October 1987	138
January 1988	204
April 1988	285
August 1988	155
November 1988	161
March 1989	260
June 1989	191
December 1989	141
April 1990	208
February 1991	144
June 1991	145
April 1992	154

Why this page shows a volume and not a percentage

Percentage full is a division, and the denominator is missing

“Percentage full” is the figure a drought is discussed in, and it is stored volume divided by capacity. Capacity is published on several different bases — gross, usable, live, and the figure at a particular spillway or licence condition — and dividing a stored volume by the wrong one produces a percentage confidently wrong by the ratio between them, at exactly the moment the number matters most.

Hydrionis holds storage measurements for this reservoir and does not hold a compatible authoritative capacity figure for it, so percentage full is not calculated. The volume above is what was actually measured. Where you need a percentage, take the publisher’s own capacity on its own stated basis and divide it yourself — the source is linked below, and knowing which basis you used is the whole point.

Rate and persistence

0 of 24

Recent months below the 20th percentile for their own month

Rates are computed only across an unbroken run of months, so a rate is never divided by a period in which some of the change was not observed. Percentile counts compare each month with the same calendar month in every other year held.

Location

Sevier Bridge Reservoir Near Juab, UT

Gauge location

About this data

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	1920–1992
Completeness	92.7% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps	Storage is a managed quantity. A falling line can be a rule curve, a scheduled release or a transfer to another system rather than a shortage of water, and nothing here distinguishes them. No capacity figure on a stated basis is held for this reservoir, so no percentage of capacity is computed.
Continuity	93% of the months between 1920 and 1992 are held. Monthly means of the publisher's own daily 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

Use this data

Machine-readable JSON /api/v1/observations/by-subject/reservoir-usgs-10218500.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), Sevier Bridge Reservoir Near Juab, UT reservoir records, accessed 2026-10-05, hydrionis.com/reservoirs/reservoir-usgs-10218500/

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 Sevier Bridge Reservoir Near Juab, UT record 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 this comes from

812 monthly observations 1920–1992 Mm³

Spatially aggregatedHigh confidenceApril 1992

Source: USGS — National Water Information System, 10218500. Licence: Open.

Method: Monthly mean of daily reservoir storage published by the USGS in acre-feet and converted to millions of cubic metres. Months with fewer than 20 days of record are not published rather than averaged from a partial month.

Reservoir storage is managed as well as observed: a drawdown may reflect an operating rule, flood-control rule curve or scheduled release rather than a shortage. Compare a month against the same month in other years, and do not read a fall as a supply signal without knowing the operating regime.

Retrieved 1 October 2026.

Monthly mean of daily reservoir storage published by the USGS in acre-feet and converted to millions of cubic metres. Months with fewer than 20 days of record are not published rather than averaged from a partial month.