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PARK DITCH
Structure dossier · WDID 2900686 · 1 · SAN JUAN RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 22:12 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 1886-07-01 — 84th most senior of the 853 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: DIAMOND DITCH (1886-07-01). Immediately behind: FAWN GULCH PIPELINE (1886-07-01).
Decreed rights (8)
| 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 |
|---|---|---|---|---|---|---|---|
| 13331.0 | 1886-07-01 | 1902-01-20 | 1.25 | 0.0 | C | STOIRRMUNCOMINDRECFISFIRDOMAUG | #23 |
| 14610.0 | 1889-12-31 | 1902-01-20 | 1.25 | 0.0 | C | STOIRRMUNCOMINDRECFISFIRDOMAUG | #51 |
| 15964.0 | 1893-09-15 | 1902-01-20 | 6.0 | 0.0 | C | STOIRRMUNCOMINDRECFISFIRDOMAUG | #75 |
| 18262.0 | 1899-12-31 | 1902-01-20 | 12.0 | 0.0 | C | STOIRRMUNCOMINDRECFISFIRDOMAUG | #116 |
| 41016.37052 | 1951-06-12 | 1968-12-19 | 3.6 | 0.0 | C | STOIRRMUNCOMINDRECFISFIRDOMAUG | 68-121 |
| 41016.38868 | 1956-06-01 | 1968-12-19 | 35.9 | 0.0 | C | STOIRRMUNCOMINDRECFISFIRDOMAUG | 68-138 |
| 54376.0 | 1998-11-16 | 1998-12-31 | 0.0 | 0.5 | C | IRR | |
| 56602.0 | 2004-12-20 | 2004-12-31 | 0.0 | 50.0 | C | STO |
Legal record & documents
22 decreed actions on record across
8 court cases:
04CW0085, 98CW0070, CA0308-D, 87CW0088, W1066, 01CW0107, CA0708, CA0073.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
04CW0085 | 1 | 2004-12-31 | S |
98CW0070 | 1 | 1998-12-31 | S |
CA0308-D | 2 | 1968-12-19 | S |
87CW0088 | 12 | 1968-12-19 | O, S |
W1066 | 1 | 1962-04-19 | S |
01CW0107 | 1 | 1962-04-19 | S |
CA0708 | 2 | 1902-01-20 | O |
CA0073 | 2 | 1902-01-20 | 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 9,400 AF. Its most recent year on record, 2025, came in at 8,189 AF — 87% of that, and 3rd 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 | 9,400 | 8th lowest of 15 · 100% of median | — | 160 | 57.0 |
| 2012 | 9,335 | 7th lowest of 15 · 99% of median | — | 167 | 39.1 |
| 2013 | 8,721 | 4th lowest of 15 · 93% of median | — | 160 | 60.2 |
| 2014 | 9,971 | 11th lowest of 15 · 106% of median | — | 170 | 64.0 |
| 2015 | 7,720 | 1st lowest of 15 · 82% of median | — | 170 | 35.6 |
| 2016 | 9,055 | 5th lowest of 15 · 96% of median | — | 153 | 42.5 |
| 2017 | 9,583 | 9th lowest of 15 · 102% of median | — | 189 | 42.5 |
| 2018 | 9,826 | 10th lowest of 15 · 104% of median | — | 177 | 43.4 |
| 2019 | 9,981 | 12th lowest of 15 · 106% of median | — | 150 | 62.9 |
| 2020 | 12,545 | 15th lowest of 15 · 134% of median | — | 183 | 52.8 |
| 2021 | 9,292 | 6th lowest of 15 · 99% of median | — | 162 | 42.9 |
| 2022 | 11,733 | 14th lowest of 15 · 125% of median | — | 163 | 52.3 |
| 2023 | 11,455 | 13th lowest of 15 · 122% of median | — | 160 | 46.0 |
| 2024 | 7,925 | 2nd lowest of 15 · 84% of median | 2,762 | 159 | 48.8 |
| 2025 | 8,189 | 3rd lowest of 15 · 87% of median | 2,584 | 163 | 43.9 |
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 (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 | 8 right(s), seniority decoded |
| diversion record | present | 9506 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | patchy | 72% of the irrigation seasons in 1964-2025 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.