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SI JOHNSON DITCH
Structure dossier · WDID 3800992 · 1 · CASTLE CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 20:36 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.
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 1926-01-10 — 612th most senior of the 4788 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: FREEMONT DITCH (1925-01-01). Immediately behind: DOOSE DITCH (1927-05-01).
Decreed rights (3)
| 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 |
|---|---|---|---|---|---|---|---|
| 30941.27768 | 1926-01-10 | 1936-08-25 | 3.5 | 0.0 | C | IRR | 422 |
| 30941.30071 | 1932-05-01 | 1936-08-25 | 2.0 | 0.0 | C | IRR | 435 |
| 60265.58178 | 2009-04-14 | 2015-12-31 | 0.011 | 0.0 | C | AUGOTH |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 788 AF. Its most recent year on record, 2024, came in at 887 AF — 113% of that, and 11th 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 | 995 | 12th lowest of 15 · 126% of median | 178 | 3.7 |
| 2011 | 788 | 8th lowest of 15 · 100% of median | 211 | 3.4 |
| 2012 | 1,212 | 15th lowest of 15 · 154% of median | 366 | 5.0 |
| 2013 | 519 | 2nd lowest of 15 · 66% of median | 365 | 2.0 |
| 2014 | 498 | 1st lowest of 15 · 63% of median | 365 | 3.4 |
| 2015 | 856 | 10th lowest of 15 · 109% of median | 365 | 4.2 |
| 2016 | 681 | 6th lowest of 15 · 86% of median | 366 | 2.6 |
| 2017 | 571 | 3rd lowest of 15 · 72% of median | 304 | 2.5 |
| 2018 | 811 | 9th lowest of 15 · 103% of median | 235 | 3.2 |
| 2019 | 713 | 7th lowest of 15 · 90% of median | 365 | 5.0 |
| 2020 | 1,049 | 13th lowest of 15 · 133% of median | 366 | 5.4 |
| 2021 | 1,195 | 14th lowest of 15 · 152% of median | 365 | 5.4 |
| 2022 | 616 | 5th lowest of 15 · 78% of median | 365 | 2.4 |
| 2023 | 594 | 4th lowest of 15 · 75% of median | 365 | 3.2 |
| 2024 | 887 | 11th lowest of 15 · 113% of median | 305 | 3.9 |
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.