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ALKALI DITCH D NO 80
Structure dossier · WDID 6800501 · 1 · COW CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 23:21 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 1884-10-15 — 116th most senior of the 1293 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: BOULEVARD DITCH (1884-06-01). Immediately behind: RESERVOIR DITCH (1884-12-12).
Decreed rights (6)
| 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 |
|---|---|---|---|---|---|---|---|
| 12707.0 | 1884-10-15 | 1897-05-15 | 6.6 | 0.0 | C | STOIRR | 91 |
| 13605.0 | 1887-04-01 | 1897-05-15 | 6.4 | 0.0 | C | IRR | 104 |
| 14336.0 | 1889-04-01 | 1897-05-15 | 2.5 | 0.0 | C | IRR | 118 |
| 14533.0 | 1889-10-15 | 1897-05-15 | 17.5 | 0.0 | C | IRR | 118, 125 |
| 22071.16599 | 1895-06-12 | 1913-12-01 | 5.5 | 0.0 | C | IRRDOM | 2-A |
| 29554.11901 | 1882-08-01 | 1942-05-11 | 1.0 | 0.0 | C | IRR |
Legal record & documents
17 decreed actions on record across
10 court cases:
W3426, CA1962, W3443, 86CW0129, W3421, W2244, CA1581, CA0939, 05/15/1897, 04CW0186.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
W3426 | 1 | 1942-05-11 | S |
CA1962 | 3 | 1913-12-01 | S |
W3443 | 1 | 1905-02-11 | S |
86CW0129 | 1 | 1905-02-11 | S |
W3421 | 2 | 1897-05-15 | O |
W2244 | 2 | 1897-05-15 | O |
CA1581 | 1 | 1897-05-15 | O |
CA0939 | 3 | 1897-05-15 | O |
05/15/1897 | 1 | 1897-05-15 | O |
04CW0186 | 2 | 1897-05-15 | 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 4,621 AF. Its most recent year on record, 2025, came in at 5,120 AF — 111% of that, and 13th 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) |
|---|---|---|---|---|
| 2011 | 5,076 | 12th lowest of 15 · 110% of median | 338 | 33.6 |
| 2012 | 1,135 | 1st lowest of 15 · 25% of median | 195 | 26.3 |
| 2013 | 3,936 | 3rd lowest of 15 · 85% of median | 317 | 30.3 |
| 2014 | 4,164 | 6th lowest of 15 · 90% of median | 251 | 35.3 |
| 2015 | 4,190 | 7th lowest of 15 · 91% of median | 275 | 30.7 |
| 2016 | 5,345 | 14th lowest of 15 · 116% of median | 366 | 36.6 |
| 2017 | 4,992 | 11th lowest of 15 · 108% of median | 328 | 38.0 |
| 2018 | 2,087 | 2nd lowest of 15 · 45% of median | 284 | 30.7 |
| 2019 | 5,813 | 15th lowest of 15 · 126% of median | 365 | 32.3 |
| 2020 | 4,921 | 10th lowest of 15 · 106% of median | 351 | 36.6 |
| 2021 | 4,019 | 5th lowest of 15 · 87% of median | 365 | 34.9 |
| 2022 | 4,621 | 8th lowest of 15 · 100% of median | 346 | 31.0 |
| 2023 | 4,780 | 9th lowest of 15 · 103% of median | 291 | 28.1 |
| 2024 | 4,017 | 4th lowest of 15 · 87% of median | 287 | 24.5 |
| 2025 | 5,120 | 13th lowest of 15 · 111% of median | 304 | 29.7 |
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 A (9/10 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 | 6 right(s), seniority decoded |
| diversion record | present | 12907 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | continuous | 80% of the irrigation seasons in 1950-2025 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.