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OASIS DITCH NO. 1
Structure dossier · WDID 4000811 · 1 · NORTH FORK GUNNISON RIVE · DWR record
Where this page's figures come from
Generated 2026-08-27 20:51 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 1906-10-29 — 1301st most senior of the 4661 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: OASIS RESERVOIR (1906-10-28). Immediately behind: BARNARD A SHEARER DITCH (1906-12-01).
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 |
|---|---|---|---|---|---|---|---|
| 21263.20755 | 1906-10-29 | 1914-06-23 | 7.8 | 0.0 | C | IRR | A90 |
| 52230.29584 | 1930-12-31 | 1993-12-31 | 5.0 | 0.0 | C | IRRSTK |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 1,429 AF. Its most recent year on record, 2024, came in at 646 AF — 45% of that, and 2nd 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) |
|---|---|---|---|---|
| 2010 | 1,298 | 5th lowest of 15 · 91% of median | 134 | 7.9 |
| 2011 | 2,418 | 15th lowest of 15 · 169% of median | 187 | 10.5 |
| 2012 | 1,429 | 8th lowest of 15 · 100% of median | 223 | 4.0 |
| 2013 | 1,397 | 7th lowest of 15 · 98% of median | 337 | 4.2 |
| 2014 | 2,050 | 12th lowest of 15 · 144% of median | 365 | 8.5 |
| 2015 | 1,918 | 11th lowest of 15 · 134% of median | 355 | 4.8 |
| 2016 | 2,167 | 13th lowest of 15 · 152% of median | 366 | 7.8 |
| 2017 | 2,213 | 14th lowest of 15 · 155% of median | 363 | 6.4 |
| 2018 | 1,290 | 4th lowest of 15 · 90% of median | 259 | 5.0 |
| 2019 | 1,391 | 6th lowest of 15 · 97% of median | 184 | 6.0 |
| 2020 | 458 | 1st lowest of 15 · 32% of median | 128 | 2.4 |
| 2021 | 928 | 3rd lowest of 15 · 65% of median | 212 | 2.5 |
| 2022 | 1,643 | 9th lowest of 15 · 115% of median | 304 | 4.0 |
| 2023 | 1,788 | 10th lowest of 15 · 125% of median | 162 | 8.1 |
| 2024 | 646 | 2nd lowest of 15 · 45% of median | 114 | 2.9 |
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.