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SULLIVAN-WALLACE DITCH
Structure dossier · WDID 3000641 · 1 · ANIMAS RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 19:17 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 in line
Priority 1876-08-28 — 120th most senior of the 2277 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: AMBOLD DITCH (JECKEL) (1876-08-28). Immediately behind: CONLEY DITCH (1876-10-10).
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 |
|---|---|---|---|---|---|---|---|
| 9737.0 | 1876-08-28 | 1923-11-08 | 8.6531 | 0.0 | C | IRR | A-5 |
| 12889.0 | 1885-04-15 | 1923-11-08 | 2.0 | 0.0 | C | IRRCOMDOMSTK | A-16 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 4,339 AF. Its most recent year on record, 2025, came in at 4,339 AF — 100% of that, and 8th 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 | 4,798 | 13th lowest of 15 · 111% of median | 237 | 13.0 |
| 2012 | 4,066 | 5th lowest of 15 · 94% of median | 228 | 10.9 |
| 2013 | 3,872 | 4th lowest of 15 · 89% of median | 204 | 12.6 |
| 2014 | 4,799 | 14th lowest of 15 · 111% of median | 268 | 11.9 |
| 2015 | 3,722 | 3rd lowest of 15 · 86% of median | 198 | 11.3 |
| 2016 | 4,896 | 15th lowest of 15 · 113% of median | 246 | 15.8 |
| 2017 | 4,449 | 11th lowest of 15 · 102% of median | 226 | 11.5 |
| 2018 | 4,150 | 6th lowest of 15 · 96% of median | 216 | 13.5 |
| 2019 | 3,579 | 2nd lowest of 15 · 82% of median | 193 | 11.5 |
| 2020 | 4,393 | 10th lowest of 15 · 101% of median | 208 | 13.5 |
| 2021 | 3,529 | 1st lowest of 15 · 81% of median | 208 | 13.2 |
| 2022 | 4,477 | 12th lowest of 15 · 103% of median | 218 | 15.0 |
| 2023 | 4,357 | 9th lowest of 15 · 100% of median | 203 | 13.5 |
| 2024 | 4,172 | 7th lowest of 15 · 96% of median | 215 | 13.5 |
| 2025 | 4,339 | 8th lowest of 15 · 100% of median | 186 | 15.0 |
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.