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CONWELL DITCH
Structure dossier · WDID 7000527 · 1 · CONN CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 19:49 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 1884-04-13 — 4th most senior of the 519 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: BAKER AND BOWDISH DITCH (1884-04-13). Immediately behind: CONWELL DITCH ALT PT NO1 (1884-04-13).
Decreed rights (6)
| 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 |
|---|---|---|---|---|---|---|---|
| 12522.0 | 1884-04-13 | 1889-05-11 | 2.8 | 0.0 | C | IRR | 23 |
| 13190.0 | 1886-02-10 | 1889-05-11 | 1.6 | 0.0 | C | IRR | 52 |
| 23569.15432 | 1892-04-01 | 1914-12-19 | 0.1 | 0.0 | C | IRR | 147AAB |
| 23569.23514 | 1914-05-19 | 1914-12-19 | 0.08 | 0.0 | C | IRR | 157 |
| 25837.12522 | 1884-04-13 | 1921-07-18 | 1.0 | 0.0 | C | DOM | DOM1 |
| 27132.27059 | 1924-02-01 | 1937-01-11 | 4.72 | 0.0 | C | IRR | 181QQ |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 292 AF. Its most recent year on record, 2025, came in at 146 AF — 50% of that, and 6th 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) |
|---|---|---|---|---|
| 2006 | 236 | 7th lowest of 15 · 81% of median | 95 | 2.1 |
| 2007 | 612 | 13th lowest of 15 · 210% of median | 365 | 1.2 |
| 2008 | 1,064 | 15th lowest of 15 · 364% of median | 288 | 4.0 |
| 2009 | 311 | 9th lowest of 15 · 106% of median | 85 | 2.0 |
| 2010 | 360 | 11th lowest of 15 · 123% of median | 150 | 1.9 |
| 2011 | 853 | 14th lowest of 15 · 292% of median | 123 | 4.7 |
| 2012 | 345 | 10th lowest of 15 · 118% of median | 116 | 1.8 |
| 2015 | 7 | 1st lowest of 15 · 2% of median | 13 | 0.3 |
| 2016 | 113 | 4th lowest of 15 · 39% of median | 41 | 2.1 |
| 2017 | 292 | 8th lowest of 15 · 100% of median | 125 | 2.3 |
| 2018 | 45 | 2nd lowest of 15 · 15% of median | 78 | 0.6 |
| 2019 | 417 | 12th lowest of 15 · 143% of median | 152 | 2.7 |
| 2023 | 76 | 3rd lowest of 15 · 26% of median | 16 | 2.7 |
| 2024 | 133 | 5th lowest of 15 · 46% of median | 54 | 1.9 |
| 2025 | 146 | 6th lowest of 15 · 50% of median | 64 | 1.2 |
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.