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OCONNOR DITCH
Structure dossier · WDID 4500713 · 1 · PORCUPINE CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 21:02 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 1885-09-01 — 75th most senior of the 1378 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: BEAVER CREEK DITCH (1887-09-29). Immediately behind: BETTY JANE WELL (1890-12-31).
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 |
|---|---|---|---|---|---|---|---|
| 14717.13028 | 1885-09-01 | 1890-04-18 | 1.0 | 0.0 | C | IRR | 36A |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 182 AF. Its most recent year on record, 2009, came in at 370 AF — 203% of that, and 14th 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) |
|---|---|---|---|---|
| 1995 | 173 | 7th lowest of 15 · 95% of median | 88 | 1.0 |
| 1996 | 145 | 5th lowest of 15 · 80% of median | 74 | 1.0 |
| 1997 | 308 | 12th lowest of 15 · 169% of median | 197 | 1.0 |
| 1998 | 830 | 15th lowest of 15 · 456% of median | 152 | 6.0 |
| 1999 | 168 | 6th lowest of 15 · 92% of median | 98 | 1.0 |
| 2000 | 294 | 11th lowest of 15 · 162% of median | 185 | 1.4 |
| 2001 | 196 | 9th lowest of 15 · 108% of median | 68 | 1.8 |
| 2002 | 95 | 3rd lowest of 15 · 52% of median | 45 | 1.1 |
| 2003 | 22 | 1st lowest of 15 · 12% of median | 75 | 1.0 |
| 2004 | 22 | 1st lowest of 15 · 12% of median | 12 | 1.0 |
| 2005 | 182 | 8th lowest of 15 · 100% of median | 52 | 4.3 |
| 2006 | 368 | 13th lowest of 15 · 202% of median | 131 | 2.7 |
| 2007 | 125 | 4th lowest of 15 · 69% of median | 43 | 3.2 |
| 2008 | 245 | 10th lowest of 15 · 135% of median | 88 | 3.0 |
| 2009 | 370 | 14th lowest of 15 · 203% of median | 102 | 2.5 |
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.