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O'GRASKE DITCH NO 2
Structure dossier · WDID 1300521 · 1 · SOUTH COLONY CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 19:16 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 1883-05-10 — 390th most senior of the 1017 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: F KOHL DITCH NO 3 (1882-07-10). Immediately behind: KELLING DITCH NO 6 (1883-05-15).
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 |
|---|---|---|---|---|---|---|---|
| 12183.0 | 1883-05-10 | 1896-03-12 | 0.4 | 0.0 | C | IRR | 352 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 40 AF. Its most recent year on record, 2001, came in at 40 AF — 100% of that, and 8th 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) |
|---|---|---|---|---|
| 1980 | 21 | 4th lowest of 15 · 52% of median | 31 | 0.4 |
| 1982 | 32 | 7th lowest of 15 · 80% of median | 65 | 0.5 |
| 1983 | 40 | 8th lowest of 15 · 100% of median | 64 | 0.4 |
| 1985 | 126 | 14th lowest of 15 · 315% of median | 191 | 0.4 |
| 1986 | 184 | 15th lowest of 15 · 460% of median | 233 | 0.4 |
| 1987 | 24 | 5th lowest of 15 · 60% of median | 31 | 0.4 |
| 1990 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 1992 | 55 | 10th lowest of 15 · 138% of median | 70 | 0.4 |
| 1993 | 97 | 12th lowest of 15 · 242% of median | 124 | 0.7 |
| 1995 | 98 | 13th lowest of 15 · 245% of median | 124 | 0.4 |
| 1996 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 1997 | 81 | 11th lowest of 15 · 202% of median | 105 | 0.4 |
| 1998 | 31 | 6th lowest of 15 · 78% of median | 40 | 0.4 |
| 2000 | 3 | 3rd lowest of 15 · 8% of median | 5 | 0.4 |
| 2001 | 40 | 8th lowest of 15 · 100% of median | 53 | 0.4 |
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.