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GRATEHOUSE DITCH
Structure dossier · WDID 2800570 · 1 · GREATHOUSE GULCH · DWR record
Where this page's figures come from
Generated 2026-08-27 21:11 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.
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 1946-05-15 — 773rd most senior of the 1505 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: STITZER DITCH (1935-07-11). Immediately behind: GILBERT PROCTOR WELL NO1 (1947-05-01).
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 |
|---|---|---|---|---|---|---|---|
| 35198.0 | 1946-05-15 | 1956-04-16 | 6.0 | 0.0 | C | IRR | 358 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 85 AF. Its most recent year on record, 2025, came in at 80 AF — 94% of that, and 7th 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) |
|---|---|---|---|---|
| 2011 | 264 | 14th lowest of 15 · 311% of median | 128 | 1.4 |
| 2012 | 3 | 1st lowest of 15 · 4% of median | 25 | 0.1 |
| 2013 | 105 | 10th lowest of 15 · 124% of median | 112 | 1.0 |
| 2014 | 41 | 5th lowest of 15 · 48% of median | 29 | 1.0 |
| 2015 | 155 | 13th lowest of 15 · 182% of median | 53 | 1.5 |
| 2016 | 138 | 12th lowest of 15 · 162% of median | 24 | 5.0 |
| 2017 | 647 | 15th lowest of 15 · 761% of median | 44 | 9.0 |
| 2018 | 11 | 2nd lowest of 15 · 13% of median | 48 | 0.1 |
| 2019 | 123 | 11th lowest of 15 · 145% of median | 66 | 1.0 |
| 2020 | 49 | 6th lowest of 15 · 58% of median | 100 | 0.2 |
| 2021 | 28 | 4th lowest of 15 · 33% of median | 72 | 0.2 |
| 2022 | 25 | 3rd lowest of 15 · 29% of median | 52 | 0.2 |
| 2023 | 85 | 8th lowest of 15 · 100% of median | 74 | 1.0 |
| 2024 | 88 | 9th lowest of 15 · 104% of median | 194 | 0.5 |
| 2025 | 80 | 7th lowest of 15 · 94% of median | 125 | 0.5 |
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.