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ELLGEN DITCH
Structure dossier · WDID 4400613 · 8 · YAMPA RIVER · 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 (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 1956-05-01 — 569th most senior of the 3562 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: CALDER WELL NO 1 (1955-07-01). Immediately behind: ELLGEN DITCH AP PUMP (1956-05-01).
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 |
|---|---|---|---|---|---|---|---|
| 38837.0 | 1956-05-01 | 1960-09-01 | 4.05 | 0.0 | C | IRR | 82 |
| 41402.0 | 1963-05-10 | 1972-05-30 | 3.55 | 0.0 | C | IRR | 45 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 64 AF. Its most recent year on record, 2025, came in at 0 AF — 0% of that, and 1st 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) |
|---|---|---|---|---|
| 2010 | 275 | 11th lowest of 15 · 430% of median | 24 | 9.5 |
| 2011 | 167 | 10th lowest of 15 · 261% of median | 32 | 8.5 |
| 2012 | 139 | 9th lowest of 15 · 217% of median | 10 | 9.7 |
| 2013 | 53 | 7th lowest of 15 · 83% of median | 9 | 4.4 |
| 2014 | 15 | 6th lowest of 15 · 23% of median | 8 | 1.5 |
| 2016 | 366 | 13th lowest of 15 · 572% of median | 39 | 9.2 |
| 2017 | 930 | 15th lowest of 15 · 1453% of median | 70 | 7.0 |
| 2018 | 64 | 8th lowest of 15 · 100% of median | 16 | 2.7 |
| 2019 | 0 | 1st lowest of 15 · 0% of median | 2 | 0.0 |
| 2020 | 348 | 12th lowest of 15 · 544% of median | 61 | 5.0 |
| 2021 | 0 | 1st lowest of 15 · 0% of median | 5 | 0.0 |
| 2022 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 2023 | 14 | 5th lowest of 15 · 22% of median | 6 | 1.8 |
| 2024 | 417 | 14th lowest of 15 · 652% of median | 44 | 5.0 |
| 2025 | 0 | 1st lowest of 15 · 0% of median | 6 | 0.0 |
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.