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ROCK CREEK DITCH
Structure dossier · WDID 5300775 · 1 · ROCK CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 21:20 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 1887-04-01 — 49th 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: MUSGRAVE DITCH (1887-04-01). Immediately behind: BIG HAT RANCH PUMP & PIPELINE NO 1 (1887-04-01).
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 |
|---|---|---|---|---|---|---|---|
| 13605.0 | 1887-04-01 | 1890-11-20 | 0.0 | 0.0 | C | IRR | 48 |
| 14701.0 | 1890-04-01 | 1890-11-20 | 1.6 | 0.0 | C | IRR | 105 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 176 AF. Its most recent year on record, 2024, came in at 135 AF — 77% of that, and 4th 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) |
|---|---|---|---|---|
| 2007 | 52 | 1st lowest of 15 · 30% of median | 53 | 0.5 |
| 2008 | 345 | 14th lowest of 15 · 196% of median | 147 | 1.2 |
| 2009 | 146 | 6th lowest of 15 · 83% of median | 54 | 1.4 |
| 2010 | 139 | 5th lowest of 15 · 79% of median | 45 | 1.6 |
| 2011 | 204 | 10th lowest of 15 · 116% of median | 58 | 1.8 |
| 2012 | 99 | 3rd lowest of 15 · 56% of median | 56 | 1.1 |
| 2013 | 165 | 7th lowest of 15 · 94% of median | 53 | 1.6 |
| 2014 | 54 | 2nd lowest of 15 · 31% of median | 119 | 0.2 |
| 2015 | 196 | 9th lowest of 15 · 111% of median | 188 | 0.6 |
| 2016 | 240 | 11th lowest of 15 · 136% of median | 179 | 0.9 |
| 2017 | 316 | 13th lowest of 15 · 180% of median | 187 | 1.2 |
| 2018 | 258 | 12th lowest of 15 · 147% of median | 186 | 0.9 |
| 2019 | 176 | 8th lowest of 15 · 100% of median | 191 | 0.8 |
| 2020 | 351 | 15th lowest of 15 · 199% of median | 180 | 1.3 |
| 2024 | 135 | 4th lowest of 15 · 77% of median | 137 | 0.6 |
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.