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DREYFUSS DITCH
Structure dossier · WDID 4300608 · 1 · MILLER CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 21:08 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 1886-05-05 — 581st most senior of the 3293 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: G V DITCH (1886-05-01). Immediately behind: FRANK SMITH DITCH (1888-05-01).
Decreed rights (4)
| 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 |
|---|---|---|---|---|---|---|---|
| 18172.13274 | 1886-05-05 | 1899-10-03 | 2.8 | 0.0 | C | IRR | 39A |
| 19502.15888 | 1893-07-01 | 1903-10-06 | 0.6 | 0.0 | C | IRR | 144 |
| 39776.35563 | 1947-05-15 | 1966-11-21 | 2.49 | 0.0 | C | IRR | 642 |
| 57708.45806 | 1975-05-31 | 2008-12-31 | 3.5 | 0.0 | C | IRRSTK | 642 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 2,205 AF. Its most recent year on record, 2025, came in at 2,919 AF — 132% of that, and 15th 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) |
|---|---|---|---|---|
| 2009 | 2,780 | 13th lowest of 15 · 126% of median | 165 | 10.6 |
| 2010 | 2,596 | 11th lowest of 15 · 118% of median | 135 | 11.3 |
| 2011 | 2,205 | 8th lowest of 15 · 100% of median | 166 | 11.3 |
| 2012 | 1,889 | 5th lowest of 15 · 86% of median | 150 | 9.4 |
| 2013 | 1,881 | 4th lowest of 15 · 85% of median | 171 | 10.6 |
| 2014 | 2,109 | 7th lowest of 15 · 96% of median | 125 | 9.4 |
| 2015 | 945 | 2nd lowest of 15 · 43% of median | 85 | 7.0 |
| 2016 | 278 | 1st lowest of 15 · 13% of median | 30 | 5.0 |
| 2017 | 2,841 | 14th lowest of 15 · 129% of median | 159 | 9.3 |
| 2019 | 2,626 | 12th lowest of 15 · 119% of median | 189 | 7.2 |
| 2020 | 2,266 | 9th lowest of 15 · 103% of median | 187 | 6.1 |
| 2022 | 2,055 | 6th lowest of 15 · 93% of median | 176 | 6.1 |
| 2023 | 1,636 | 3rd lowest of 15 · 74% of median | 163 | 8.2 |
| 2024 | 2,326 | 10th lowest of 15 · 106% of median | 169 | 10.6 |
| 2025 | 2,919 | 15th lowest of 15 · 132% of median | 171 | 12.0 |
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.