Hydrohistorian
← My Water · Print / save as PDF
UPPER UNCOMPAHGRE DITCH
Structure dossier · WDID 6800765 · 1 · UNCOMPAHGRE RIVER · DWR record
Where this page's figures come from
Generated 2026-08-28 02:53 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 1881-09-10 — 64th 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: HENRY TRENCHARD DITCH (1881-06-01). Immediately behind: ROSWELL HOTCHKISS DITCH (1881-09-15).
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 |
|---|---|---|---|---|---|---|---|
| 11576.0 | 1881-09-10 | 1897-05-15 | 8.75 | 0.0 | C | IRR | 50 |
| 29554.12905 | 1885-05-01 | 1942-05-11 | 4.25 | 0.0 | C | IRR | 39 |
| 60630.11576 | 1881-09-10 | 2016-12-31 | 0.75 | 0.0 | C | STK |
Legal record & documents
7 decreed actions on record across
5 court cases:
16CW0031, CA1959, CA1206, CA1184, CA0939.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
16CW0031 | 3 | 2016-12-31 | O, S |
CA1959 | 1 | 1942-05-11 | S |
CA1206 | 1 | 1897-05-15 | O |
CA1184 | 1 | 1897-05-15 | O |
CA0939 | 1 | 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 3,758 AF. Its most recent year on record, 2025, came in at 3,551 AF — 94% of that, and 5th 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 | 3,706 | 7th lowest of 15 · 99% of median | 357 | 15.1 |
| 2012 | 3,005 | 1st lowest of 15 · 80% of median | 366 | 8.8 |
| 2013 | 3,052 | 2nd lowest of 15 · 81% of median | 352 | 13.9 |
| 2014 | 4,188 | 14th lowest of 15 · 111% of median | 333 | 15.7 |
| 2015 | 3,960 | 11th lowest of 15 · 105% of median | 343 | 13.9 |
| 2016 | 4,340 | 15th lowest of 15 · 116% of median | 366 | 13.0 |
| 2017 | 3,409 | 4th lowest of 15 · 91% of median | 365 | 12.2 |
| 2018 | 3,592 | 6th lowest of 15 · 96% of median | 365 | 13.9 |
| 2019 | 3,758 | 8th lowest of 15 · 100% of median | 365 | 11.3 |
| 2020 | 3,291 | 3rd lowest of 15 · 88% of median | 366 | 11.3 |
| 2021 | 3,897 | 10th lowest of 15 · 104% of median | 365 | 13.9 |
| 2022 | 4,069 | 13th lowest of 15 · 108% of median | 365 | 11.6 |
| 2023 | 3,848 | 9th lowest of 15 · 102% of median | 365 | 12.0 |
| 2024 | 4,019 | 12th lowest of 15 · 107% of median | 366 | 11.6 |
| 2025 | 3,551 | 5th lowest of 15 · 94% of median | 304 | 12.2 |
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 A (9/10 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 | 14397 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | continuous | 89% 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.