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SOUTH SIDE DITCH
Structure dossier · WDID 0400543 · 1 · BIG THOMPSON RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 22:04 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (2deb1d7) — every figure regenerates from this named code version and data image.
Where it sits
Location as DWR records it. Faint dots are the neighbouring water; click any to open it.
Which of its rights are out of priority?
Not computable for this structure: this structure is not on the modelled flow network, so no reference gage can honestly stand in for it.
Where it sits in line
Priority 1861-11-10 — 13th most senior of the 1296 structures with decreed rights in this water districtDWR's administrative subdivision of a river basin; the unit calls are usually stated in..
Under prior appropriationColorado's rule for sharing water: first in time, first in right. Age decides, not proximity or need., everything ahead of it in this line is satisfied in full before it receives any water. Immediately ahead: DILLE TUNNEL (1861-11-10). Immediately behind: HANSEN FEEDER CNL PUMP (1861-11-10).
Decreed rights (26)
| Admin noDWR's numeric encoding of a water right's seniority. Smaller is more senior; the integer part counts days from 1849-12-31 to the date that ranks the right. | AppropriatedWhen water was first put to beneficial use. It sets seniority unless a prior adjudication date is later. | AdjudicatedWhen the water court confirmed the right. A use decreed in 1975 was not a decreed use in 1955, however old the appropriation is. | AbsoluteA right actually put to use, as opposed to conditional -- a placeholder for a use not yet made. | ConditionalA right reserving a place in line for a use not yet made; it must be diligently pursued or it lapses. | Units | UsesWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on. | Case |
|---|---|---|---|---|---|---|---|
| 4332.0 | 1861-11-10 | 1883-05-28 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFIRDOMOTH | |
| 4839.0 | 1863-04-01 | 1883-05-28 | 1.1298 | 0.0 | C | IRRMUNCOMINDRECFIRDOMOTH | |
| 5235.0 | 1864-05-01 | 1883-05-28 | 1.2352 | 0.0 | C | IRRMUNCOMINDRECFIRDOMOTH | |
| 5772.0 | 1865-10-20 | 1883-05-28 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFIRDOMOTH | |
| 5784.0 | 1865-11-01 | 1883-05-28 | 0.0 | 0.0 | C | MUN | |
| 5923.0 | 1866-03-20 | 1883-05-28 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFIRDOMOTH | |
| 6269.0 | 1867-03-01 | 1883-05-28 | 2.1782 | 0.0 | C | IRRMUNCOMINDRECFIRDOMOTH | |
| 6361.0 | 1867-06-01 | 1883-05-28 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFIRDOMOTH | |
| 7598.0 | 1870-10-20 | 1883-05-28 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFIRDOMOTH | |
| 7944.0 | 1871-10-01 | 1883-05-28 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFIRDOMOTH | |
| 8157.0 | 1872-05-01 | 1883-05-28 | 0.3247 | 0.0 | C | IRRMUNCOMINDRECFIRDOMOTH | |
| 8522.0 | 1873-05-01 | 1883-05-28 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFIRDOMOTH | |
| 8575.0 | 1873-06-23 | 1883-05-28 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFIRDOMOTH | |
| 8699.0 | 1873-10-25 | 1883-05-28 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFIRDOMOTH | |
| 10167.0 | 1877-11-01 | 1883-05-28 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFIRDOMOTH | |
| 10532.0 | 1878-11-01 | 1883-05-28 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFIRDOMOTH | |
| 11269.0 | 1880-11-07 | 1883-05-28 | 40.9103 | 0.0 | C | IRR | |
| 12313.0 | 1883-09-17 | 1883-05-28 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFIRDOMOTH | |
| 14691.13563 | 1887-02-18 | 1916-06-29 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFIRDOMOTH | |
| 18719.0 | 1901-04-02 | 1916-06-29 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFIRDOMOTH | |
| 19826.0 | 1904-04-13 | 1916-06-29 | 50.3 | 0.0 | C | STOIRR | |
| 26152.0 | 1921-08-08 | 2002-12-31 | 0.0 | 0.0 | C | IRR | |
| 29675.20988 | 1907-06-19 | 1939-11-14 | 50.0 | 0.0 | C | STO | |
| 29675.26152 | 1921-08-08 | 1939-11-14 | 50.0 | 0.0 | C | STO | |
| 29675.26828 | 1923-06-15 | 1939-11-14 | 50.0 | 0.0 | C | STO | |
| 55881.0 | 2002-12-30 | 2002-12-31 | 0.0 | 0.0 | C | MUN |
Legal record & documents
112 decreed actions on record across
14 court cases:
02CW0394, 02CW0393, 02CW0302, CA10077, CA4862, 82CW0202, CA0259, 92CW0112, 89CW0090, 87CW0249 and 4 more below.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
02CW0394 | 8 | 2002-12-31 | S |
02CW0393 | 13 | 2002-12-31 | S |
02CW0302 | 2 | 2002-12-31 | O |
CA10077 | 3 | 1939-11-14 | S |
CA4862 | 1 | 1916-06-29 | S |
82CW0202 | 27 | 1916-06-29 | O, S |
CA0259 | 4 | 1883-05-28 | O |
92CW0112 | 3 | 1883-05-28 | O |
89CW0090 | 3 | 1883-05-28 | O |
87CW0249 | 5 | 1883-05-28 | O |
87CW0178 | 12 | 1883-05-28 | O |
05/28/1883 | 1 | 1883-05-28 | O |
03CW0354 | 7 | 1883-05-28 | O |
02CW0392 | 23 | 1883-05-28 | O |
DWR's own records for this structure: net amounts · transactions & adjudication history · scanned decrees (search a case number there for the imaged document). On this site: the district's full legal picture →
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 2,944 AF. Its most recent year on record, 2024, came in at 2,500 AF — 85% of that, and 3rd lowest of the 15 years with a recorded volume.
This structure records both diversions and reservoir releases — they are separate water movements and are accounted separately below.
| Year | Diverted (AFA volume: one acre covered a foot deep, about 326,000 gallons -- roughly a suburban household's outdoor use for a year.) | Compared with its own record | Released (AF) | Days recorded | Peak (cfs) |
|---|---|---|---|---|---|
| 2010 | 3,339 | 11th lowest of 15 · 113% of median | — | 200 | 25.8 |
| 2011 | 4,749 | 15th lowest of 15 · 161% of median | — | 189 | 47.1 |
| 2012 | 3,645 | 13th lowest of 15 · 124% of median | — | 211 | 24.8 |
| 2013 | 2,358 | 2nd lowest of 15 · 80% of median | — | 165 | 20.7 |
| 2014 | 3,098 | 10th lowest of 15 · 105% of median | — | 154 | 22.0 |
| 2015 | 2,889 | 7th lowest of 15 · 98% of median | — | 180 | 26.3 |
| 2016 | 2,151 | 1st lowest of 15 · 73% of median | — | 137 | 19.3 |
| 2017 | 2,797 | 6th lowest of 15 · 95% of median | — | 148 | 23.2 |
| 2018 | 3,549 | 12th lowest of 15 · 121% of median | — | 173 | 23.9 |
| 2019 | 3,737 | 14th lowest of 15 · 127% of median | — | 165 | 28.8 |
| 2020 | 3,079 | 9th lowest of 15 · 105% of median | — | 155 | 24.2 |
| 2021 | 2,520 | 4th lowest of 15 · 86% of median | — | 150 | 24.8 |
| 2022 | 2,520 | 4th lowest of 15 · 86% of median | — | 155 | 20.1 |
| 2023 | 2,944 | 8th lowest of 15 · 100% of median | — | 159 | 26.4 |
| 2024 | 2,500 | 3rd lowest of 15 · 85% of median | — | 133 | 26.6 |
Call-derived yield: senior right divertible 100.0% of a median season / 61.2% dry-year.
Trends for this structure
Recorded use shows no clear trend over its last 15 recorded years — which is itself worth knowing.
How good is our record of it?
Grade B (8/10 points) — the components below are the finding; the letter alone is not.
The rubric, component by component
| Check | State | Detail |
|---|---|---|
| identity | complete | name, type, and water source all on file |
| decreed rights | on file | 26 right(s), seniority decoded |
| diversion record | present | 11061 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | patchy | 70% of the irrigation seasons in 1951-2024 carry measured days |
| published-record stability | stable | no upstream revisions recorded against this structure |
Advisory reading aid on public data — not an administrative or legal conclusion, not a title opinion, and not a substitute for DWR administration or an engineer's analysis. Methodology review status is disclosed at hydrohistorian's basin pages.