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ALKALI DITCH
Structure dossier · WDID 3700502 · 1 · ALKALI CREEK · DWR record
Where this page's figures come from
Generated 2026-08-28 00:21 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 1884-11-15 — 41st most senior of the 2162 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: JUNE CREEK RANCH WELL 6 (1884-07-24). Immediately behind: A&W DIVERSION POINT (1884-11-15).
Decreed rights (2)
| 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 |
|---|---|---|---|---|---|---|---|
| 12738.0 | 1884-11-15 | 1889-12-17 | 1.7 | 0.0 | C | IRR | 28 |
| 30894.13103 | 1885-11-15 | 1936-10-03 | 3.4 | 0.0 | C | IRR | 369 |
Legal record & documents
3 decreed actions on record across
3 court cases:
CA0963, CA0294, 93CW0068.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
CA0963 | 1 | 1936-10-03 | S |
CA0294 | 1 | 1889-12-17 | O |
93CW0068 | 1 | 1889-12-17 | 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 151 AF. Its most recent year on record, 2020, came in at 44 AF — 29% of that, and 2nd 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) |
|---|---|---|---|---|
| 2005 | 135 | 7th lowest of 15 · 89% of median | 148 | 2.0 |
| 2006 | 411 | 13th lowest of 15 · 272% of median | 169 | 2.5 |
| 2007 | 425 | 14th lowest of 15 · 282% of median | 176 | 2.1 |
| 2008 | 562 | 15th lowest of 15 · 372% of median | 192 | 1.9 |
| 2009 | 308 | 10th lowest of 15 · 204% of median | 185 | 2.0 |
| 2010 | 315 | 11th lowest of 15 · 209% of median | 174 | 1.5 |
| 2011 | 270 | 9th lowest of 15 · 179% of median | 167 | 1.6 |
| 2012 | 151 | 8th lowest of 15 · 100% of median | 98 | 1.5 |
| 2013 | 60 | 3rd lowest of 15 · 40% of median | 67 | 0.7 |
| 2014 | 360 | 12th lowest of 15 · 238% of median | 179 | 1.5 |
| 2015 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 2017 | 90 | 5th lowest of 15 · 60% of median | 90 | 0.8 |
| 2018 | 69 | 4th lowest of 15 · 46% of median | 38 | 1.4 |
| 2019 | 117 | 6th lowest of 15 · 78% of median | 89 | 0.9 |
| 2020 | 44 | 2nd lowest of 15 · 29% of median | 111 | 0.2 |
Trends for this structure
Recorded use is falling over its last 15 recorded years (-27 AF/yr, Mann-Kendall p=0.010).
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 | 2 right(s), seniority decoded |
| diversion record | present | 5619 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | sparse | 38% of the irrigation seasons in 1951-2020 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.