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TWIN SPRUCE DITCH
Structure dossier · WDID 4001212 · 1 · COW CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 19:50 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 in line
Priority 1911-06-01 — 1621st most senior of the 4661 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: SNOOKS DITCH (1911-06-01). Immediately behind: COTTONWOOD DITCH (1912-04-01).
Decreed rights (1)
| 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 |
|---|---|---|---|---|---|---|---|
| 29260.22431 | 1911-06-01 | 1937-05-28 | 9.0 | 0.0 | C | IRR | H86 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 108 AF. Its most recent year on record, 2024, came in at 92 AF — 85% 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) |
|---|---|---|---|---|
| 2010 | 318 | 14th lowest of 15 · 294% of median | 63 | 3.0 |
| 2011 | 370 | 15th lowest of 15 · 343% of median | 63 | 4.6 |
| 2012 | 190 | 11th lowest of 15 · 176% of median | 31 | 4.0 |
| 2013 | 180 | 10th lowest of 15 · 167% of median | 41 | 3.0 |
| 2014 | 105 | 7th lowest of 15 · 97% of median | 38 | 2.8 |
| 2015 | 27 | 3rd lowest of 15 · 25% of median | 38 | 0.6 |
| 2016 | 206 | 12th lowest of 15 · 191% of median | 52 | 4.8 |
| 2017 | 20 | 2nd lowest of 15 · 18% of median | 23 | 0.9 |
| 2018 | 0 | 1st lowest of 15 · 0% of median | 3 | 0.0 |
| 2019 | 130 | 9th lowest of 15 · 120% of median | 67 | 1.9 |
| 2020 | 36 | 5th lowest of 15 · 33% of median | 48 | 0.4 |
| 2021 | 108 | 8th lowest of 15 · 100% of median | 31 | 2.0 |
| 2022 | 218 | 13th lowest of 15 · 202% of median | 78 | 3.8 |
| 2023 | 33 | 4th lowest of 15 · 31% of median | 25 | 0.9 |
| 2024 | 92 | 6th lowest of 15 · 85% of median | 42 | 1.5 |
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.