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HOLST DITCH 2
Structure dossier · WDID 2300922 · DITCH · TARRYALL CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 22:54 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (0576005) — 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.
Current administration
● Fully called out — call at LAST CHANCE DITCH 2 (SOUTH PLATTE RIVER, priority 1863-12-30).
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 1875-06-15 — 496th most senior of the 21881 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: 2303974 (1875-06-01). Immediately behind: 2300923 (1875-06-15).
Decreed rights (3)
| 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 |
|---|---|---|---|---|---|---|---|
| 9297.0 | 1875-06-15 | 1889-10-18 | 7.9 | 0.0 | C | IRR | |
| 9312.0 | 1875-06-30 | 1889-10-18 | 2.0 | 0.0 | C | IRR | |
| 10712.0 | 1879-04-30 | 1889-10-18 | 11.7 | 0.0 | C | IRR |
Legal record & documents
3 decreed actions on record across
2 court cases:
CA0341, 02CW0240A.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
CA0341 | 1 | 1889-10-18 | O |
02CW0240A | 2 | 1889-10-18 | 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 575 AF. Its most recent year on record, 2025, came in at 530 AF — 92% of that, and 7th 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 | 1,085 | 14th lowest of 15 · 189% of median | 85 | 11.7 |
| 2012 | 69 | 1st lowest of 15 · 12% of median | 26 | 3.0 |
| 2013 | 161 | 3rd lowest of 15 · 28% of median | 35 | 3.0 |
| 2014 | 125 | 2nd lowest of 15 · 22% of median | 22 | 3.0 |
| 2015 | 725 | 11th lowest of 15 · 126% of median | 34 | 11.7 |
| 2016 | 433 | 5th lowest of 15 · 75% of median | 34 | 11.7 |
| 2017 | 575 | 8th lowest of 15 · 100% of median | 64 | 6.0 |
| 2018 | 197 | 4th lowest of 15 · 34% of median | 26 | 5.2 |
| 2019 | 957 | 13th lowest of 15 · 166% of median | 48 | 11.7 |
| 2020 | 459 | 6th lowest of 15 · 80% of median | 39 | 6.5 |
| 2021 | 1,455 | 15th lowest of 15 · 253% of median | 78 | 11.1 |
| 2022 | 640 | 10th lowest of 15 · 111% of median | 53 | 11.7 |
| 2023 | 891 | 12th lowest of 15 · 155% of median | 48 | 11.6 |
| 2024 | 603 | 9th lowest of 15 · 105% of median | 44 | 7.5 |
| 2025 | 530 | 7th lowest of 15 · 92% of median | 53 | 8.1 |
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 (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 | 3 right(s), seniority decoded |
| diversion record | present | 3015 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | sparse | 19% 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.