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MURPHY DITCH 1
Structure dossier · WDID 5800792 · 1 · GUNN CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 20:26 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 1904-05-01 — 401st most senior of the 3097 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: WESTEN DITCH 2 (1904-05-16). Immediately behind: BRADLEY PUMP 1 (1890-05-28).
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 |
|---|---|---|---|---|---|---|---|
| 20716.19844 | 1904-05-01 | 1906-09-22 | 1.0 | 0.0 | C | IRRDOM | 168A |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 172 AF. Its most recent year on record, 2025, came in at 160 AF — 93% 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) |
|---|---|---|---|---|
| 2010 | 173 | 9th lowest of 15 · 101% of median | 304 | 0.5 |
| 2012 | 3 | 1st lowest of 15 · 2% of median | 205 | 0.0 |
| 2013 | 268 | 15th lowest of 15 · 156% of median | 216 | 1.0 |
| 2014 | 175 | 10th lowest of 15 · 102% of median | 308 | 1.1 |
| 2015 | 5 | 2nd lowest of 15 · 3% of median | 27 | 0.1 |
| 2016 | 90 | 4th lowest of 15 · 52% of median | 82 | 0.6 |
| 2017 | 75 | 3rd lowest of 15 · 44% of median | 149 | 0.8 |
| 2018 | 154 | 6th lowest of 15 · 90% of median | 162 | 1.0 |
| 2019 | 107 | 5th lowest of 15 · 62% of median | 192 | 0.9 |
| 2020 | 230 | 12th lowest of 15 · 134% of median | 366 | 1.0 |
| 2021 | 239 | 13th lowest of 15 · 139% of median | 365 | 1.0 |
| 2022 | 263 | 14th lowest of 15 · 153% of median | 365 | 1.1 |
| 2023 | 187 | 11th lowest of 15 · 109% of median | 365 | 1.0 |
| 2024 | 172 | 8th lowest of 15 · 100% of median | 366 | 1.0 |
| 2025 | 160 | 7th lowest of 15 · 93% of median | 304 | 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.