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YARNELL DITCH
Structure dossier · WDID 4000622 · 1 · IRON CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 19:50 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 in line
Priority 1894-01-01 — 1908th 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: IRON DITCH NO 1 (1894-01-01). Immediately behind: HADLEY DITCH NO 2 (1900-06-01).
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 |
|---|---|---|---|---|---|---|---|
| 38064.16072 | 1894-01-01 | 1964-01-31 | 1.75 | 0.0 | C | IRRDOM | K6, K7 |
Recorded use (last 8 years on record)
In a median year this structure has a recorded diversion of 127 AF. Its most recent year on record, 1980, came in at 56 AF — 44% of that, and 2nd lowest of the 8 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) |
|---|---|---|---|---|
| 1973 | 214 | 8th lowest of 8 · 168% of median | 140 | 1.0 |
| 1974 | 189 | 7th lowest of 8 · 149% of median | 134 | 1.0 |
| 1975 | 151 | 6th lowest of 8 · 119% of median | 64 | 2.0 |
| 1976 | 124 | 4th lowest of 8 · 98% of median | 68 | 1.0 |
| 1977 | 49 | 1st lowest of 8 · 39% of median | 57 | 0.6 |
| 1978 | 102 | 3rd lowest of 8 · 80% of median | 76 | 0.7 |
| 1979 | 130 | 5th lowest of 8 · 102% of median | 66 | 1.5 |
| 1980 | 56 | 2nd lowest of 8 · 44% of median | 30 | 1.5 |
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.