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DILLSWORTH DITCH
Structure dossier · WDID 5900546 · 1 · SLATE RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 21:10 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 1884-05-01 — 97th 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: BEAVER DAM DITCH (1884-04-01). Immediately behind: KELMEL OWENS NO 2 DITCH (1884-06-01).
Decreed rights (4)
| 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 |
|---|---|---|---|---|---|---|---|
| 12540.0 | 1884-05-01 | 1905-11-01 | 5.73 | 0.0 | C | IRR | |
| 20710.19144 | 1902-06-01 | 1921-10-25 | 4.54 | 0.0 | C | IRR | 195 |
| 30667.19144 | 1902-06-01 | 1941-04-29 | 22.6475 | 0.0 | C | IRR | 388 |
| 30667.29349 | 1930-05-10 | 1941-04-29 | 10.116 | 0.0 | C | IRR | 461 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 6,555 AF. Its most recent year on record, 2025, came in at 5,394 AF — 82% of that, and 5th 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 | 5,357 | 4th lowest of 15 · 82% of median | 159 | 38.5 |
| 2012 | 9,104 | 15th lowest of 15 · 139% of median | 197 | 56.2 |
| 2013 | 4,584 | 1st lowest of 15 · 70% of median | 175 | 22.4 |
| 2014 | 6,773 | 10th lowest of 15 · 103% of median | 171 | 42.0 |
| 2015 | 7,750 | 13th lowest of 15 · 118% of median | 152 | 56.1 |
| 2016 | 4,787 | 2nd lowest of 15 · 73% of median | 147 | 39.4 |
| 2017 | 6,674 | 9th lowest of 15 · 102% of median | 160 | 37.2 |
| 2018 | 6,241 | 7th lowest of 15 · 95% of median | 182 | 44.1 |
| 2019 | 7,359 | 12th lowest of 15 · 112% of median | 165 | 42.2 |
| 2020 | 8,398 | 14th lowest of 15 · 128% of median | 177 | 44.3 |
| 2021 | 7,188 | 11th lowest of 15 · 110% of median | 202 | 34.1 |
| 2022 | 6,555 | 8th lowest of 15 · 100% of median | 181 | 38.1 |
| 2023 | 5,069 | 3rd lowest of 15 · 77% of median | 140 | 36.1 |
| 2024 | 5,938 | 6th lowest of 15 · 91% of median | 165 | 38.1 |
| 2025 | 5,394 | 5th lowest of 15 · 82% of median | 177 | 42.2 |
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.