Hydrohistorian
← My Water · Print / save as PDF
PARK DITCH
Structure dossier · WDID 6800685 · 1 · UNCOMPAHGRE RIVER · DWR record
Where this page's figures come from
Generated 2026-08-28 02:57 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 1881-05-01 — 62nd 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: ASHLEY DOMESTIC WELL (1881-03-10). Immediately behind: HENRY TRENCHARD DITCH (1881-06-01).
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 |
|---|---|---|---|---|---|---|---|
| 11444.0 | 1881-05-01 | 1897-05-15 | 6.0 | 0.0 | C | IRRAUG | 48 |
| 14731.0 | 1890-05-01 | 1897-05-15 | 0.75 | 0.0 | C | IRR | 127A |
| 29554.11444 | 1881-05-01 | 1942-05-11 | 14.25 | 0.0 | C | IRR | 20 |
Legal record & documents
5 decreed actions on record across
3 court cases:
CA1959, CA0939, 04CW0077.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
CA1959 | 1 | 1942-05-11 | S |
CA0939 | 2 | 1897-05-15 | O |
04CW0077 | 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 2,707 AF. Its most recent year on record, 2025, came in at 4,130 AF — 153% of that, and 14th 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) |
|---|---|---|---|---|---|
| 2011 | 2,189 | 3rd lowest of 15 · 81% of median | — | 149 | 15.4 |
| 2012 | 2,480 | 6th lowest of 15 · 92% of median | — | 182 | 21.0 |
| 2013 | 2,106 | 2nd lowest of 15 · 78% of median | 2 | 114 | 20.8 |
| 2014 | 2,372 | 4th lowest of 15 · 88% of median | — | 142 | 15.2 |
| 2015 | 2,423 | 5th lowest of 15 · 90% of median | — | 174 | 16.1 |
| 2016 | 1,896 | 1st lowest of 15 · 70% of median | — | 140 | 13.5 |
| 2017 | 2,642 | 7th lowest of 15 · 98% of median | — | 143 | 20.0 |
| 2018 | 2,707 | 8th lowest of 15 · 100% of median | 8 | 194 | 18.4 |
| 2019 | 4,860 | 15th lowest of 15 · 180% of median | — | 218 | 20.1 |
| 2020 | 3,370 | 10th lowest of 15 · 124% of median | 4 | 230 | 17.5 |
| 2021 | 3,836 | 13th lowest of 15 · 142% of median | 1 | 245 | 19.1 |
| 2022 | 3,513 | 12th lowest of 15 · 130% of median | 4 | 165 | 23.0 |
| 2023 | 3,507 | 11th lowest of 15 · 130% of median | — | 143 | 23.4 |
| 2024 | 3,325 | 9th lowest of 15 · 123% of median | — | 151 | 20.5 |
| 2025 | 4,130 | 14th lowest of 15 · 153% of median | 1 | 172 | 22.7 |
Trends for this structure
Recorded use is rising over its last 15 recorded years (+131 AF/yr, Mann-Kendall p=0.003).
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 | 3 right(s), seniority decoded |
| diversion record | present | 8673 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | patchy | 54% 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.