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ZELMA DARCY DITCH
Structure dossier · WDID 4700965 · 1 · SPRING CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 21:28 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.
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 1887-07-15 — 520th 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: BOETTCHER LAKE RES (1887-07-01). Immediately behind: PARK DITCH (1888-06-06).
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 |
|---|---|---|---|---|---|---|---|
| 30280.1371 | 1887-07-15 | 1939-06-20 | 7.05 | 0.0 | C | IRR | 647 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 76 AF. Its most recent year on record, 2025, came in at 16 AF — 21% of that, and 5th 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) |
|---|---|---|---|---|
| 2006 | 53 | 7th lowest of 15 · 70% of median | 10 | 3.5 |
| 2007 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 2008 | 144 | 9th lowest of 15 · 190% of median | 27 | 5.2 |
| 2009 | 155 | 10th lowest of 15 · 204% of median | 37 | 3.0 |
| 2010 | 270 | 11th lowest of 15 · 355% of median | 43 | 5.0 |
| 2012 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 2013 | 274 | 12th lowest of 15 · 360% of median | 41 | 4.5 |
| 2015 | 25 | 6th lowest of 15 · 33% of median | 26 | 0.5 |
| 2019 | 0 | 1st lowest of 15 · 0% of median | 2 | 0.0 |
| 2020 | 350 | 14th lowest of 15 · 460% of median | 26 | 7.1 |
| 2021 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 2022 | 320 | 13th lowest of 15 · 421% of median | 43 | 7.2 |
| 2023 | 76 | 8th lowest of 15 · 100% of median | 47 | 2.0 |
| 2024 | 635 | 15th lowest of 15 · 836% of median | 51 | 9.2 |
| 2025 | 16 | 5th lowest of 15 · 21% of median | 9 | 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.