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OMMANNEY DITCH NO 2
Structure dossier · WDID 1300827 · 1 · NORTH ALVARADO CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 20:44 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.
Which of its rights get called out?
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 1881-05-01 — 344th 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: MECHANIC DITCH (1881-05-01). Immediately behind: FORD DITCH NO 2 (1881-05-01).
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 |
|---|---|---|---|---|---|---|---|
| 11444.0 | 1881-05-01 | 1896-03-12 | 1.0 | 0.0 | C | IRR | 290B |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 19 AF. Its most recent year on record, 2021, came in at 58 AF — 305% of that, and 10th 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) |
|---|---|---|---|---|
| 1930 | 60 | 11th lowest of 15 · 316% of median | 61 | 0.5 |
| 1942 | 137 | 15th lowest of 15 · 721% of median | 70 | 1.0 |
| 1980 | 42 | 9th lowest of 15 · 221% of median | 22 | 1.0 |
| 1982 | 5 | 4th lowest of 15 · 26% of median | 6 | 0.5 |
| 1995 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 1996 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 1997 | 121 | 14th lowest of 15 · 637% of median | 153 | 0.4 |
| 1998 | 14 | 5th lowest of 15 · 74% of median | 15 | 0.5 |
| 1999 | 19 | 7th lowest of 15 · 100% of median | 26 | 0.5 |
| 2000 | 4 | 3rd lowest of 15 · 21% of median | 4 | 0.8 |
| 2001 | 14 | 5th lowest of 15 · 74% of median | 8 | 1.0 |
| 2003 | 19 | 7th lowest of 15 · 100% of median | 15 | 0.8 |
| 2005 | 88 | 13th lowest of 15 · 463% of median | 60 | 1.0 |
| 2007 | 75 | 12th lowest of 15 · 395% of median | 40 | 1.0 |
| 2021 | 58 | 10th lowest of 15 · 305% of median | 31 | 1.0 |
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.