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WILLOW CREEK NO 4 DITCH
Structure dossier · WDID 5300881 · 1 · WILLOW CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 19:52 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 in line
Priority 1966-07-15 — 485th most senior of the 1231 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: TRAIL RESERVOIR (1966-07-08). Immediately behind: HARPER SPRINGS PIPELINE (1966-07-30).
Decreed rights (3)
| 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 |
|---|---|---|---|---|---|---|---|
| 42564.0 | 1966-07-15 | 1967-09-13 | 2.0 | 0.0 | C | IRRDOMSTKFED | 519 |
| 54267.0 | 1998-07-30 | 1998-12-31 | 0.0 | 2.0 | C | IRRCOMDOMSTK | |
| 55020.0 | 2000-08-21 | 1998-12-31 | 0.0 | 3.0 | C | RECFIS |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 149 AF. Its most recent year on record, 2016, came in at 10 AF — 7% of that, and 1st 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) |
|---|---|---|---|---|
| 1990 | 127 | 6th lowest of 15 · 85% of median | 69 | 1.2 |
| 1991 | 134 | 7th lowest of 15 · 90% of median | 84 | 1.5 |
| 1993 | 263 | 10th lowest of 15 · 176% of median | 105 | 2.0 |
| 1994 | 100 | 5th lowest of 15 · 67% of median | 43 | 1.2 |
| 1995 | 295 | 12th lowest of 15 · 198% of median | 112 | 2.2 |
| 1996 | 550 | 14th lowest of 15 · 369% of median | 154 | 2.3 |
| 1997 | 1,119 | 15th lowest of 15 · 751% of median | 164 | 3.5 |
| 1998 | 363 | 13th lowest of 15 · 244% of median | 98 | 2.0 |
| 1999 | 196 | 9th lowest of 15 · 132% of median | 67 | 1.5 |
| 2000 | 149 | 8th lowest of 15 · 100% of median | 115 | 0.7 |
| 2001 | 51 | 3rd lowest of 15 · 34% of median | 52 | 0.5 |
| 2005 | 292 | 11th lowest of 15 · 196% of median | 148 | 1.0 |
| 2009 | 54 | 4th lowest of 15 · 36% of median | 61 | 0.5 |
| 2010 | 31 | 2nd lowest of 15 · 21% of median | 65 | 0.5 |
| 2016 | 10 | 1st lowest of 15 · 7% of median | 36 | 0.2 |
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.