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PERRY IRRIGATING DITCH
Structure dossier · WDID 2800673 · 1 · COCHETOPA CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 23:31 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 1882-05-31 — 85th most senior of the 1505 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: MEANS BROS. NO. 11 DITCH (1882-05-31). Immediately behind: J T HORN DITCH (1882-06-01).
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 |
|---|---|---|---|---|---|---|---|
| 16192.11839 | 1882-05-31 | 1904-04-29 | 3.0 | 0.0 | C | IRR | 61 |
| 16192.13635 | 1887-05-01 | 1904-04-29 | 0.8 | 0.0 | C | IRR | 91 |
| 16192.13665 | 1887-05-31 | 1904-04-29 | 0.7 | 0.0 | C | IRR | 93 |
| 16192.13666 | 1887-06-01 | 1904-04-29 | 2.7 | 0.0 | C | IRR | 94 |
| 16192.14032 | 1888-06-01 | 1904-04-29 | 0.7 | 0.0 | C | IRR | 97 |
| 16192.14166 | 1888-10-13 | 1904-04-29 | 7.2 | 0.0 | C | IRR | 101 |
Legal record & documents
6 decreed actions on record across
2 court cases:
CA3039, CA1266.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
CA3039 | 4 | 1904-04-29 | S |
CA1266 | 2 | 1904-04-29 | S |
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 1,809 AF. Its most recent year on record, 2025, came in at 2,583 AF — 143% of that, and 12th 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 | 1,083 | 4th lowest of 15 · 60% of median | 116 | 10.4 |
| 2012 | 589 | 2nd lowest of 15 · 33% of median | 112 | 4.6 |
| 2013 | 591 | 3rd lowest of 15 · 33% of median | 105 | 4.0 |
| 2014 | 3,892 | 15th lowest of 15 · 215% of median | 112 | 43.5 |
| 2015 | 2,252 | 11th lowest of 15 · 124% of median | 76 | 18.8 |
| 2016 | 1,368 | 5th lowest of 15 · 76% of median | 99 | 12.0 |
| 2017 | 2,245 | 10th lowest of 15 · 124% of median | 135 | 15.5 |
| 2018 | 580 | 1st lowest of 15 · 32% of median | 136 | 4.8 |
| 2019 | 2,612 | 13th lowest of 15 · 144% of median | 92 | 23.3 |
| 2020 | 1,499 | 7th lowest of 15 · 83% of median | 110 | 19.0 |
| 2021 | 1,809 | 8th lowest of 15 · 100% of median | 140 | 21.1 |
| 2022 | 1,375 | 6th lowest of 15 · 76% of median | 105 | 11.2 |
| 2023 | 1,983 | 9th lowest of 15 · 110% of median | 82 | 18.5 |
| 2024 | 2,616 | 14th lowest of 15 · 145% of median | 96 | 16.0 |
| 2025 | 2,583 | 12th lowest of 15 · 143% of median | 95 | 18.9 |
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 | 6 right(s), seniority decoded |
| diversion record | present | 6908 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | patchy | 58% of the irrigation seasons in 1970-2025 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.