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ANTELOPE DITCH
Structure dossier · WDID 4701011 · 1 · LITTLE GRIZZLY CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 20:46 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.
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 1887-05-15 — 119th most senior of the 1262 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: ALVIN H NORELL DITCH (1887-05-15). Immediately behind: BUTLER DITCH 4 (1887-05-15).
Decreed rights (4)
| 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 |
|---|---|---|---|---|---|---|---|
| 13649.0 | 1887-05-15 | 1892-09-19 | 3.5 | 0.0 | C | IRR | 45 |
| 14375.0 | 1889-05-10 | 1892-09-19 | 8.5 | 0.0 | C | IRR | 91(82) |
| 21366.19645 | 1903-10-15 | 1913-01-06 | 7.0 | 0.0 | C | IRR | 179 |
| 33534.31267 | 1935-08-10 | 1958-01-10 | 20.0 | 0.0 | C | IRRDOM | 761 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 1,142 AF. Its most recent year on record, 2025, came in at 901 AF — 79% of that, and 6th 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) |
|---|---|---|---|---|
| 2005 | 2,378 | 13th lowest of 15 · 208% of median | 78 | 26.0 |
| 2006 | 1,142 | 8th lowest of 15 · 100% of median | 63 | 12.0 |
| 2007 | 968 | 7th lowest of 15 · 85% of median | 60 | 12.0 |
| 2008 | 897 | 5th lowest of 15 · 78% of median | 47 | 18.7 |
| 2009 | 1,368 | 11th lowest of 15 · 120% of median | 55 | 26.0 |
| 2010 | 1,154 | 9th lowest of 15 · 101% of median | 45 | 32.3 |
| 2012 | 888 | 4th lowest of 15 · 78% of median | 54 | 11.9 |
| 2013 | 739 | 3rd lowest of 15 · 65% of median | 55 | 7.5 |
| 2014 | 1,316 | 10th lowest of 15 · 115% of median | 52 | 27.2 |
| 2015 | 2,528 | 14th lowest of 15 · 221% of median | 60 | 24.5 |
| 2016 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 2018 | 2,063 | 12th lowest of 15 · 181% of median | 63 | 20.0 |
| 2019 | 3,434 | 15th lowest of 15 · 301% of median | 56 | 37.7 |
| 2024 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 2025 | 901 | 6th lowest of 15 · 79% of median | 23 | 20.6 |
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.