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JOHN J DITCH
Structure dossier · WDID 3801125 · 1 · ROARING FORK RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 20:43 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 1907-05-01 — 582nd most senior of the 4788 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: WILDCAT RANCH DIVERSION (1906-09-05). Immediately behind: FRANCES NISBET D NO 1 (1907-05-01).
Decreed rights (1)
| 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 |
|---|---|---|---|---|---|---|---|
| 30941.20939 | 1907-05-01 | 1936-08-25 | 3.33 | 0.0 | C | IRR | 381 |
Recorded use (last 12 years on record)
In a median year this structure has a recorded diversion of 468 AF. Its most recent year on record, 2020, came in at 147 AF — 31% of that, and 2nd lowest of the 12 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) |
|---|---|---|---|---|
| 1981 | 272 | 5th lowest of 12 · 58% of median | 138 | 1.0 |
| 1982 | 252 | 4th lowest of 12 · 54% of median | 129 | 1.0 |
| 1983 | 303 | 6th lowest of 12 · 65% of median | 153 | 1.0 |
| 1988 | 690 | 10th lowest of 12 · 147% of median | 175 | 2.0 |
| 1992 | 181 | 3rd lowest of 12 · 39% of median | 61 | 1.5 |
| 1993 | 1,202 | 12th lowest of 12 · 257% of median | 304 | 2.5 |
| 1994 | 1,041 | 11th lowest of 12 · 222% of median | 189 | 3.0 |
| 1995 | 667 | 9th lowest of 12 · 142% of median | 210 | 2.8 |
| 1997 | 67 | 1st lowest of 12 · 14% of median | 35 | 1.0 |
| 1998 | 634 | 7th lowest of 12 · 135% of median | 201 | 1.7 |
| 1999 | 642 | 8th lowest of 12 · 137% of median | 176 | 1.9 |
| 2020 | 147 | 2nd lowest of 12 · 31% of median | 151 | 7.1 |
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.