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CHADWICK D 1
Structure dossier · WDID 2000568 · 1 · WILLOW CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 21:01 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 1875-04-01 — 78th most senior of the 8016 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: RABER D (1875-03-31). Immediately behind: EXCELSIOR D (1875-04-01).
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 |
|---|---|---|---|---|---|---|---|
| 9222.0 | 1875-04-01 | 1896-05-01 | 1.48 | 0.0 | C | STOIRR | 75 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 109 AF. Its most recent year on record, 2004, came in at 0 AF — 0% 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) |
|---|---|---|---|---|
| 1985 | 202 | 12th lowest of 15 · 185% of median | 89 | 2.0 |
| 1986 | 99 | 6th lowest of 15 · 91% of median | 48 | 1.5 |
| 1987 | 75 | 4th lowest of 15 · 69% of median | 30 | 2.0 |
| 1988 | 92 | 5th lowest of 15 · 84% of median | 87 | 1.0 |
| 1989 | 231 | 14th lowest of 15 · 212% of median | 107 | 1.5 |
| 1990 | 34 | 2nd lowest of 15 · 31% of median | 42 | 0.5 |
| 1991 | 158 | 10th lowest of 15 · 145% of median | 90 | 1.5 |
| 1992 | 215 | 13th lowest of 15 · 197% of median | 145 | 1.5 |
| 1993 | 104 | 7th lowest of 15 · 95% of median | 69 | 1.5 |
| 1994 | 109 | 8th lowest of 15 · 100% of median | 75 | 1.5 |
| 1995 | 197 | 11th lowest of 15 · 181% of median | 94 | 1.5 |
| 1996 | 49 | 3rd lowest of 15 · 45% of median | 56 | 1.5 |
| 1997 | 115 | 9th lowest of 15 · 106% of median | 97 | 1.5 |
| 1998 | 280 | 15th lowest of 15 · 257% of median | 171 | 1.5 |
| 2004 | 0 | 1st lowest of 15 · 0% of median | 23 | 0.0 |
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.