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SCHUPP DITCH
Structure dossier · WDID 5900667 · 1 · EAST RIVER · DWR record
Where this page's figures come from
Generated 2026-08-28 03:48 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
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 1898-05-01 — 511th most senior of the 2360 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: ELK CREEK CARPENTER D (1897-05-15). Immediately behind: SUNSHINE IRG DITCH (1900-05-01).
Decreed rights (5)
| 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 |
|---|---|---|---|---|---|---|---|
| 20710.17653 | 1898-05-01 | 1921-10-25 | 0.25 | 0.0 | C | IRR | 191 |
| 23861.0 | 1915-05-01 | 1921-10-25 | 0.625 | 0.0 | C | IRR | 211 |
| 24592.0 | 1917-05-01 | 1921-10-25 | 1.0 | 0.0 | C | IRR | 218 |
| 30667.17333 | 1897-06-15 | 1941-04-29 | 5.625 | 0.0 | C | IRR | 364 |
| 30667.26432 | 1922-05-15 | 1941-04-29 | 7.5 | 0.0 | C | IRR | 452 |
Legal record & documents
5 decreed actions on record across
2 court cases:
CA2021, CA1635.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
CA2021 | 2 | 1941-04-29 | S |
CA1635 | 3 | 1921-10-25 | S |
DWR's own records for this structure: net amounts · transactions & adjudication history · scanned decrees (search a case number there for the imaged document). On this site: the district's full legal picture →
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 430 AF. Its most recent year on record, 2025, came in at 0 AF — 0% of that, and 1st 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 | 1,556 | 13th lowest of 15 · 362% of median | 61 | 15.0 |
| 2012 | 3 | 2nd lowest of 15 · 1% of median | 35 | 0.1 |
| 2013 | 149 | 5th lowest of 15 · 35% of median | 73 | 1.8 |
| 2014 | 991 | 11th lowest of 15 · 230% of median | 71 | 8.6 |
| 2015 | 555 | 9th lowest of 15 · 129% of median | 42 | 8.0 |
| 2016 | 1,083 | 12th lowest of 15 · 252% of median | 68 | 16.2 |
| 2017 | 430 | 8th lowest of 15 · 100% of median | 65 | 6.8 |
| 2018 | 239 | 6th lowest of 15 · 56% of median | 68 | 2.3 |
| 2019 | 2,625 | 15th lowest of 15 · 610% of median | 92 | 23.4 |
| 2020 | 1,658 | 14th lowest of 15 · 386% of median | 71 | 14.7 |
| 2021 | 919 | 10th lowest of 15 · 214% of median | 91 | 13.5 |
| 2022 | 78 | 4th lowest of 15 · 18% of median | 64 | 0.8 |
| 2023 | 28 | 3rd lowest of 15 · 6% of median | 42 | 0.4 |
| 2024 | 321 | 7th lowest of 15 · 75% of median | 89 | 3.6 |
| 2025 | 0 | 1st lowest of 15 · 0% of median | 7 | 0.0 |
Trends for this structure
Recorded use shows no clear trend over its last 15 recorded years — which is itself worth knowing.
How good is our record of it?
Grade B (8/10 points) — the components below are the finding; the letter alone is not.
The rubric, component by component
| Check | State | Detail |
|---|---|---|
| identity | complete | name, type, and water source all on file |
| decreed rights | on file | 5 right(s), seniority decoded |
| diversion record | present | 4392 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | patchy | 41% of the irrigation seasons in 1975-2025 carry measured days |
| published-record stability | stable | no upstream revisions recorded against this structure |
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.