HydrionisGlobal Water Intelligence
HUC8 subbasin

Upper Little Tennessee

2 monitoring stations within this area in United States, holding 202 values between 1907 and 2026. A United States federal hydrologic unit at the eight-digit subbasin level — a drainage area, not a river. Many subbasins take the name of the largest river within them, and the gauges below are anywhere inside the area, including on tributaries.

United StatesHUC8 subbasin

The monitoring network within this area

Hydrionis holds 202 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.

2
Gauges
202
Values held
1907–2026
Record spans
Gauges within the Upper Little Tennessee huc8 subbasin
2 monitoring points, positioned as the publisher records them.
Gauges within the Upper Little Tennessee huc8 subbasinCULLASAJA RIVER AT CULLASAJA, NC, LITTLE TENNESSEE R AT FRANKLIN, NCCULLASAJA RIVER AT CULLASAJA, NCLITTLE TENNESSEE R AT FRANKLIN, NC

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 CULLASAJA RIVER AT CULLASAJA, NC
The highest instantaneous discharge the publisher recorded in each year — a flood peak as measured, not a daily average of one. 1908–1976.
Largest measured flow of each year at CULLASAJA RIVER AT CULLASAJA, NCLargest measured flow of each year at CULLASAJA RIVER AT CULLASAJA, NC: CULLASAJA RIVER AT CULLASAJA, NC in m³/s, from 1908 to 1976.0200400m³/s19081928193519421949195619661976CULLASAJA RIVER AT CULLASAJA, NC 1908: 41.1 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1909: 62.9 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1922: 60.9 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1923: 83.3 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1924: 66.8 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1924: 56.9 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1926: 62.9 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1926: 41.1 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1928: 220 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1929: 118 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1929: 53.8 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1931: 54.9 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1932: 68.8 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1933: 73.1 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1934: 65.7 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1935: 85.0 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1936: 128 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1936: 58.6 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1937: 87.5 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1939: 65.7 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1940: 467 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1941: 68.5 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1942: 59.5 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1942: 109 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1944: 46.2 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1945: 48.7 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1946: 82.1 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1947: 84.7 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1948: 66.5 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1949: 244 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1950: 66.0 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1950: 74.8 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1952: 136 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1953: 113 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1954: 79.6 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1955: 98.0 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1956: 91.2 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1957: 97.7 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1957: 70.8 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1959: 103 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1959: 75.3 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1961: 88.9 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1961: 89.8 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1963: 71.9 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1964: 133 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1964: 479 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1966: 271 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1967: 174 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1968: 121 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1969: 48.4 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1969: 57.5 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1971: 38.5 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1973: 142 m³/sCULLASAJA RIVER AT CULLASAJA, NC 1976: 320 m³/s

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 (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
Underlying data
PeriodCULLASAJA RIVER AT CULLASAJA, NC (m³/s)
190841.1
190962.9
192260.9
192383.3
192466.8
192662.9
1928220
1929118
193154.9
193268.8
193373.1
193465.7
193585.0
1936128
193787.5
193965.7
1940467
194168.5
194259.5
194446.2
194548.7
194682.1
194784.7
194866.5
1949244
195066.0
1952136
1953113
195479.6
195598.0
195691.2
195797.7
1959103
196188.9
196371.9
1964133
1966271
1967174
1968121
196948.4
197138.5
1973142
1976320

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 existMeasured
Period held1908–1976
Completeness62.3% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps
  • 14 separate periods inside 1908–1976 hold no value. The longest runs from 1910 to 1921 — 12 years with no reading. They are drawn as breaks in the line and are never interpolated across.
ContinuityThe record begins in 1908 and is not continuous from it: 69 years separate the first value from the last, and 62% of the years between them are held. The span is not the record.
Last read from the publisher2026-10-01
RedistributionPermitted by the upstream licences
Commercial reusePermitted by the upstream licences. No Hydrionis access tier can widen this.
MethodologyHow 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 CULLASAJA RIVER AT CULLASAJA, NC, as a depth
The year's flow spread over the land draining to this gauge, in millimetres — the same unit rainfall is measured in. 1908–1970.
Water leaving the catchment above CULLASAJA RIVER AT CULLASAJA, NC, as a depthWater leaving the catchment above CULLASAJA RIVER AT CULLASAJA, NC, as a depth: CULLASAJA RIVER AT CULLASAJA, NC in mm, from 1908 to 1970.5007501,0001,2501,500mm19081927193419411948195519621969CULLASAJA RIVER AT CULLASAJA, NC 1908: 981 mmCULLASAJA RIVER AT CULLASAJA, NC 1909: 1,359 mmCULLASAJA RIVER AT CULLASAJA, NC 1922: 1,116 mmCULLASAJA RIVER AT CULLASAJA, NC 1923: 1,002 mmCULLASAJA RIVER AT CULLASAJA, NC 1924: 875 mmCULLASAJA RIVER AT CULLASAJA, NC 1925: 522 mmCULLASAJA RIVER AT CULLASAJA, NC 1926: 762 mmCULLASAJA RIVER AT CULLASAJA, NC 1927: 843 mmCULLASAJA RIVER AT CULLASAJA, NC 1928: 1,215 mmCULLASAJA RIVER AT CULLASAJA, NC 1929: 1,433 mmCULLASAJA RIVER AT CULLASAJA, NC 1930: 597 mmCULLASAJA RIVER AT CULLASAJA, NC 1931: 597 mmCULLASAJA RIVER AT CULLASAJA, NC 1932: 1,014 mmCULLASAJA RIVER AT CULLASAJA, NC 1933: 755 mmCULLASAJA RIVER AT CULLASAJA, NC 1934: 786 mmCULLASAJA RIVER AT CULLASAJA, NC 1935: 759 mmCULLASAJA RIVER AT CULLASAJA, NC 1936: 1,114 mmCULLASAJA RIVER AT CULLASAJA, NC 1937: 940 mmCULLASAJA RIVER AT CULLASAJA, NC 1938: 739 mmCULLASAJA RIVER AT CULLASAJA, NC 1939: 779 mmCULLASAJA RIVER AT CULLASAJA, NC 1940: 768 mmCULLASAJA RIVER AT CULLASAJA, NC 1941: 639 mmCULLASAJA RIVER AT CULLASAJA, NC 1942: 994 mmCULLASAJA RIVER AT CULLASAJA, NC 1943: 899 mmCULLASAJA RIVER AT CULLASAJA, NC 1944: 766 mmCULLASAJA RIVER AT CULLASAJA, NC 1945: 767 mmCULLASAJA RIVER AT CULLASAJA, NC 1946: 1,014 mmCULLASAJA RIVER AT CULLASAJA, NC 1947: 758 mmCULLASAJA RIVER AT CULLASAJA, NC 1948: 1,066 mmCULLASAJA RIVER AT CULLASAJA, NC 1949: 1,345 mmCULLASAJA RIVER AT CULLASAJA, NC 1950: 981 mmCULLASAJA RIVER AT CULLASAJA, NC 1951: 765 mmCULLASAJA RIVER AT CULLASAJA, NC 1952: 784 mmCULLASAJA RIVER AT CULLASAJA, NC 1953: 751 mmCULLASAJA RIVER AT CULLASAJA, NC 1954: 665 mmCULLASAJA RIVER AT CULLASAJA, NC 1955: 806 mmCULLASAJA RIVER AT CULLASAJA, NC 1956: 695 mmCULLASAJA RIVER AT CULLASAJA, NC 1957: 1,102 mmCULLASAJA RIVER AT CULLASAJA, NC 1958: 765 mmCULLASAJA RIVER AT CULLASAJA, NC 1959: 886 mmCULLASAJA RIVER AT CULLASAJA, NC 1960: 842 mmCULLASAJA RIVER AT CULLASAJA, NC 1961: 959 mmCULLASAJA RIVER AT CULLASAJA, NC 1962: 840 mmCULLASAJA RIVER AT CULLASAJA, NC 1963: 635 mmCULLASAJA RIVER AT CULLASAJA, NC 1964: 1,293 mmCULLASAJA RIVER AT CULLASAJA, NC 1965: 908 mmCULLASAJA RIVER AT CULLASAJA, NC 1966: 930 mmCULLASAJA RIVER AT CULLASAJA, NC 1967: 1,098 mmCULLASAJA RIVER AT CULLASAJA, NC 1968: 769 mmCULLASAJA RIVER AT CULLASAJA, NC 1969: 959 mmCULLASAJA RIVER AT CULLASAJA, NC 1970: 743 mm

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 (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
Underlying data
PeriodCULLASAJA RIVER AT CULLASAJA, NC (mm)
1908981
19091,359
19221,116
19231,002
1924875
1925522
1926762
1927843
19281,215
19291,433
1930597
1931597
19321,014
1933755
1934786
1935759
19361,114
1937940
1938739
1939779
1940768
1941639
1942994
1943899
1944766
1945767
19461,014
1947758
19481,066
19491,345
1950981
1951765
1952784
1953751
1954665
1955806
1956695
19571,102
1958765
1959886
1960842
1961959
1962840
1963635
19641,293
1965908
1966930
19671,098
1968769
1969959
1970743

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 existDerived Computed by Hydrionis
Period held1908–1970
Completeness81.0% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps
  • One period inside 1908–1970 holds no value: 1910 to 1921, 12 years with no reading. It is drawn as a break in the line and is never interpolated across.
ContinuityThe record begins in 1908 and is not continuous from it: 63 years separate the first value from the last, and 81% of the years between them are held. The span is not the record.
Inputs last read2026-10-01 · when the records this was computed from were last read from their publishers
Calculation date2026-08-24 · when the calculation method was last versioned, not a reading of any publisher
RedistributionPermitted by the upstream licences
Commercial reusePermitted by the upstream licences. No Hydrionis access tier can widen this.
MethodologyHow this was produced

Every gauge Hydrionis holds within this area

GaugeMeasuresValuesRecord
CULLASAJA RIVER AT CULLASAJA, NCburned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year1931907–2026
LITTLE TENNESSEE R AT FRANKLIN, NCcatchment area, annual maximum river flow91908–2026

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 — 06010202. 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.

GaugeEvidenceEstablished
CULLASAJA RIVER AT CULLASAJA, NCStated 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/42026-10-02
LITTLE TENNESSEE R AT FRANKLIN, NCStated 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/42026-10-02

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.

SignalHeldCounts
Gauges holding a real record1no
Years spanned120yes, 20 or more
Values held202no
Distinct measurements5yes, 2 or more
Publishers measuring it2yes, 2 or more
Official identifiers1recorded, not counted

Use this data

Use this data

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 Little Tennessee gauge records, accessed 2026-10-05, hydrionis.com/waters/united-states-upper-little-tennessee/

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 Little Tennessee 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 confidence1976-05-15

Source: USGS — National Water Information System, USGS site 03501000, 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.

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