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COTTON SPRING DITCH
Structure dossier · WDID 5700688 · 1 · YAMPA RIVER · DWR record
Where this page's figures come from
Generated 2026-08-28 02:15 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (a1c9146) — 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 1967-06-15 — 307th most senior of the 1003 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: THOMPSON SPRING 7 (1958-08-01). Immediately behind: THOMPSON SPRING 3 (1967-07-01).
Decreed rights (1)
| 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 |
|---|---|---|---|---|---|---|---|
| 45290.42899 | 1967-06-15 | 1974-12-31 | 0.05 | 0.0 | C | IRRDOMSTK |
Legal record & documents
2 decreed actions on record across
2 court cases:
W0763-74, 21CW3048.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
W0763-74 | 1 | 1974-12-31 | S |
21CW3048 | 1 | 1974-12-31 | S |
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 6 AF. Its most recent year on record, 2020, came in at 0 AF — 0% of that, and 1st lowest of the 15 years with a recorded volume.
| 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 | Days recorded | Peak (cfs) |
|---|---|---|---|---|
| 1987 | 72 | 11th lowest of 15 · 1200% of median | 175 | 0.3 |
| 1988 | 166 | 15th lowest of 15 · 2767% of median | 168 | 0.5 |
| 1989 | 108 | 12th lowest of 15 · 1800% of median | 220 | 0.9 |
| 1990 | 153 | 14th lowest of 15 · 2550% of median | 295 | 0.9 |
| 1991 | 139 | 13th lowest of 15 · 2317% of median | 304 | 0.6 |
| 1999 | 4 | 6th lowest of 15 · 67% of median | 61 | 0.0 |
| 2000 | 7 | 9th lowest of 15 · 117% of median | 122 | 0.0 |
| 2005 | 6 | 8th lowest of 15 · 100% of median | 61 | 0.1 |
| 2006 | 34 | 10th lowest of 15 · 567% of median | 304 | 0.1 |
| 2015 | 4 | 6th lowest of 15 · 67% of median | 41 | 0.1 |
| 2016 | 0 | 1st lowest of 15 · 0% of median | 5 | 0.0 |
| 2017 | 0 | 1st lowest of 15 · 0% of median | 5 | 0.0 |
| 2018 | 2 | 5th lowest of 15 · 33% of median | 28 | 0.1 |
| 2019 | 0 | 1st lowest of 15 · 0% of median | 5 | 0.0 |
| 2020 | 0 | 1st lowest of 15 · 0% of median | 4 | 0.0 |
Trends for this structure
Recorded use is falling over its last 15 recorded years (-3 AF/yr, Mann-Kendall p=0.000).
How good is our record of it?
Grade B (7/10 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 | 1 right(s), seniority decoded |
| diversion record | present | 2195 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | sparse | 23% of the irrigation seasons in 1976-2020 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.