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VAHLDICK DITCH NO 1
Structure dossier · WDID 1301041 · 1 · GREENLEAF CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 20:49 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 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 1872-05-15 — 71st 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: VANNIER DITCH (1872-05-15). Immediately behind: LEGARD DITCH NO 11 (1872-05-31).
Decreed rights (2)
| 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 |
|---|---|---|---|---|---|---|---|
| 8171.0 | 1872-05-15 | 1894-02-03 | 1.0 | 0.0 | C | IRR | 10 |
| 10743.0 | 1879-05-31 | 1894-02-03 | 1.3 | 0.0 | C | IRR | 52 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 75 AF. Its most recent year on record, 2024, came in at 131 AF — 175% 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) |
|---|---|---|---|---|
| 1996 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 1999 | 60 | 6th lowest of 15 · 80% of median | 51 | 0.6 |
| 2000 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 2002 | 0 | 1st lowest of 15 · 0% of median | 2 | 0.0 |
| 2005 | 37 | 4th lowest of 15 · 49% of median | 63 | 0.3 |
| 2006 | 111 | 11th lowest of 15 · 148% of median | 58 | 1.0 |
| 2007 | 124 | 13th lowest of 15 · 165% of median | 39 | 2.6 |
| 2014 | 113 | 12th lowest of 15 · 151% of median | 58 | 1.0 |
| 2015 | 50 | 5th lowest of 15 · 67% of median | 23 | 1.2 |
| 2016 | 79 | 9th lowest of 15 · 105% of median | 46 | 1.8 |
| 2017 | 91 | 10th lowest of 15 · 121% of median | 27 | 2.0 |
| 2019 | 70 | 7th lowest of 15 · 93% of median | 28 | 1.5 |
| 2021 | 260 | 15th lowest of 15 · 347% of median | 101 | 2.3 |
| 2022 | 75 | 8th lowest of 15 · 100% of median | 42 | 1.0 |
| 2024 | 131 | 14th lowest of 15 · 175% of median | 67 | 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.