Hydrohistorian
← My Water · Print / save as PDF
WILLOW CK DITCH
Structure dossier · WDID 5400591 · 1 · WILLOW CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 20:30 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.
Which of its rights get called out?
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 1884-08-15 — 2nd most senior of the 724 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: SALISBURY DITCH (1884-05-01). Immediately behind: MORGAN SLATER DITCH (1885-06-01).
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 |
|---|---|---|---|---|---|---|---|
| 12646.0 | 1884-08-15 | 1897-09-23 | 14.0 | 0.0 | C | IRRIND | 2 |
| 16028.0 | 1893-11-18 | 1894-09-22 | 2.17 | 0.0 | C | IRR | 23 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 2,012 AF. Its most recent year on record, 2025, came in at 392 AF — 20% of that, and 2nd 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) |
|---|---|---|---|---|
| 2008 | 2,012 | 8th lowest of 15 · 100% of median | 107 | 16.2 |
| 2009 | 949 | 3rd lowest of 15 · 47% of median | 110 | 9.5 |
| 2010 | 2,793 | 14th lowest of 15 · 139% of median | 112 | 20.3 |
| 2011 | 2,963 | 15th lowest of 15 · 147% of median | 153 | 25.0 |
| 2012 | 1,890 | 7th lowest of 15 · 94% of median | 171 | 10.2 |
| 2013 | 2,367 | 10th lowest of 15 · 118% of median | 144 | 22.6 |
| 2014 | 2,183 | 9th lowest of 15 · 108% of median | 174 | 12.0 |
| 2015 | 2,501 | 12th lowest of 15 · 124% of median | 84 | 30.1 |
| 2016 | 2,480 | 11th lowest of 15 · 123% of median | 67 | 29.1 |
| 2017 | 1,864 | 6th lowest of 15 · 93% of median | 106 | 15.1 |
| 2018 | 1,234 | 4th lowest of 15 · 61% of median | 89 | 10.1 |
| 2020 | 2,686 | 13th lowest of 15 · 134% of median | 124 | 14.9 |
| 2022 | 1,377 | 5th lowest of 15 · 68% of median | 97 | 7.6 |
| 2023 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 2025 | 392 | 2nd lowest of 15 · 20% of median | 82 | 4.8 |
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.