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BIG ROCK DITCH
Structure dossier · WDID 2800721 · 1 · COCHETOPA CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 19:16 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 in line
Priority 1970-07-31 — 814th 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: SYLVAN CANYON SP & PL (1965-06-01). Immediately behind: VADER SPRING & PL NO 1 (1893-07-01).
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 |
|---|---|---|---|---|---|---|---|
| 44041.0 | 1970-07-31 | 1970-12-31 | 17.5 | 0.0 | C | IRR | W197 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 35 AF. Its most recent year on record, 2025, came in at 912 AF — 2606% 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) |
|---|---|---|---|---|
| 2011 | 6 | 5th lowest of 15 · 17% of median | 4 | 2.9 |
| 2012 | 0 | 1st lowest of 15 · 0% of median | 13 | 0.0 |
| 2013 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 2014 | 0 | 1st lowest of 15 · 0% of median | 6 | 0.0 |
| 2015 | 5 | 4th lowest of 15 · 14% of median | 30 | 0.1 |
| 2016 | 8 | 6th lowest of 15 · 23% of median | 32 | 0.2 |
| 2017 | 35 | 8th lowest of 15 · 100% of median | 100 | 0.2 |
| 2018 | 17 | 7th lowest of 15 · 49% of median | 90 | 0.1 |
| 2019 | 42 | 9th lowest of 15 · 120% of median | 142 | 0.2 |
| 2020 | 94 | 10th lowest of 15 · 269% of median | 48 | 2.0 |
| 2021 | 585 | 11th lowest of 15 · 1671% of median | 86 | 5.4 |
| 2022 | 1,160 | 14th lowest of 15 · 3314% of median | 183 | 5.4 |
| 2023 | 587 | 12th lowest of 15 · 1677% of median | 104 | 4.1 |
| 2024 | 2,000 | 15th lowest of 15 · 5714% of median | 177 | 9.5 |
| 2025 | 912 | 13th lowest of 15 · 2606% of median | 172 | 8.1 |
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.