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OWEN NO 1 DITCH
Structure dossier · WDID 2800667 · 1 · TOMICHI CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 20:31 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.
Which of its rights get called out?
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 1883-12-31 — 24th 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: GULLETT TOMICHI IRG D (1882-05-15). Immediately behind: OWEN NO 2 DITCH (1885-05-31).
Decreed rights (2)
| 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 |
|---|---|---|---|---|---|---|---|
| 12418.0 | 1883-12-31 | 1894-05-01 | 2.6 | 0.0 | C | IRR | 20&236 |
| 28311.12418 | 1883-12-31 | 1943-04-19 | 13.4 | 0.0 | C | IRR | 236 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 549 AF. Its most recent year on record, 2025, came in at 443 AF — 81% of that, and 3rd 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 | 957 | 13th lowest of 15 · 174% of median | 97 | 7.9 |
| 2012 | 273 | 1st lowest of 15 · 50% of median | 119 | 2.5 |
| 2013 | 597 | 9th lowest of 15 · 109% of median | 94 | 4.8 |
| 2014 | 1,020 | 14th lowest of 15 · 186% of median | 62 | 10.3 |
| 2015 | 683 | 10th lowest of 15 · 124% of median | 85 | 8.5 |
| 2016 | 709 | 11th lowest of 15 · 129% of median | 52 | 9.0 |
| 2017 | 1,230 | 15th lowest of 15 · 224% of median | 109 | 6.2 |
| 2018 | 472 | 4th lowest of 15 · 86% of median | 206 | 3.8 |
| 2019 | 521 | 6th lowest of 15 · 95% of median | 61 | 10.1 |
| 2020 | 438 | 2nd lowest of 15 · 80% of median | 70 | 4.9 |
| 2021 | 505 | 5th lowest of 15 · 92% of median | 101 | 6.0 |
| 2022 | 549 | 8th lowest of 15 · 100% of median | 111 | 6.0 |
| 2023 | 793 | 12th lowest of 15 · 144% of median | 88 | 7.9 |
| 2024 | 523 | 7th lowest of 15 · 95% of median | 81 | 4.3 |
| 2025 | 443 | 3rd lowest of 15 · 81% of median | 136 | 2.5 |
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.