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DERBY DITCH
Structure dossier · WDID 5300555 · 1 · DERBY CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 20:39 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 1884-08-28 — 16th most senior of the 1231 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: CABIN CREEK DITCH (1884-08-25). Immediately behind: LITTLE DRY GULCH DITCH (1884-09-01).
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 |
|---|---|---|---|---|---|---|---|
| 12659.0 | 1884-08-28 | 1890-11-20 | 24.0 | 0.0 | C | IRR | 13 |
| 47481.12655 | 1884-08-24 | 1980-12-31 | 4.0 | 0.0 | C | IRR |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 3,117 AF. Its most recent year on record, 2024, came in at 4,355 AF — 140% of that, and 13th 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 | 4,375 | 14th lowest of 15 · 140% of median | 130 | 20.3 |
| 2007 | 3,517 | 10th lowest of 15 · 113% of median | 106 | 17.9 |
| 2008 | 1,867 | 2nd lowest of 15 · 60% of median | 112 | 13.3 |
| 2009 | 3,117 | 8th lowest of 15 · 100% of median | 118 | 15.6 |
| 2010 | 3,645 | 12th lowest of 15 · 117% of median | 143 | 16.0 |
| 2011 | 3,546 | 11th lowest of 15 · 114% of median | 126 | 16.8 |
| 2012 | 3,173 | 9th lowest of 15 · 102% of median | 169 | 16.0 |
| 2013 | 2,913 | 6th lowest of 15 · 94% of median | 115 | 16.0 |
| 2014 | 521 | 1st lowest of 15 · 17% of median | 26 | 10.5 |
| 2015 | 5,278 | 15th lowest of 15 · 169% of median | 171 | 17.7 |
| 2016 | 3,083 | 7th lowest of 15 · 99% of median | 106 | 16.0 |
| 2017 | 2,255 | 3rd lowest of 15 · 72% of median | 175 | 9.2 |
| 2018 | 2,408 | 5th lowest of 15 · 77% of median | 149 | 9.8 |
| 2019 | 2,371 | 4th lowest of 15 · 76% of median | 143 | 11.0 |
| 2024 | 4,355 | 13th lowest of 15 · 140% of median | 154 | 16.4 |
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.