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PATTERSON DITCH
Structure dossier · WDID 6300550 · 1 · NORTH FORK MESA CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 21:07 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 1915-03-01 — 222nd most senior of the 533 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: WILD ROSE DITCH (1913-03-15). Immediately behind: CALAMITY DITCH (1916-06-10).
Decreed rights (3)
| 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 |
|---|---|---|---|---|---|---|---|
| 30079.238 | 1915-03-01 | 1939-02-11 | 2.5 | 0.0 | C | IRR | 73 |
| 30079.23809 | 1915-03-10 | 1939-02-11 | 2.24 | 0.0 | C | IRR | 74 |
| 32547.0 | 1939-02-10 | 1939-02-11 | 6.38 | 0.0 | C | IRR |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 243 AF. Its most recent year on record, 2025, came in at 265 AF — 109% of that, and 9th 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 | 655 | 15th lowest of 15 · 270% of median | 187 | 5.4 |
| 2012 | 0 | 1st lowest of 15 · 0% of median | 2 | 0.0 |
| 2013 | 226 | 6th lowest of 15 · 93% of median | 75 | 2.4 |
| 2014 | 297 | 11th lowest of 15 · 122% of median | 105 | 2.7 |
| 2015 | 180 | 4th lowest of 15 · 74% of median | 113 | 1.8 |
| 2016 | 296 | 10th lowest of 15 · 122% of median | 74 | 4.0 |
| 2017 | 592 | 14th lowest of 15 · 244% of median | 191 | 2.8 |
| 2018 | 159 | 3rd lowest of 15 · 65% of median | 49 | 1.8 |
| 2019 | 514 | 13th lowest of 15 · 212% of median | 111 | 3.5 |
| 2020 | 243 | 8th lowest of 15 · 100% of median | 82 | 2.3 |
| 2021 | 0 | 1st lowest of 15 · 0% of median | 2 | 0.0 |
| 2022 | 231 | 7th lowest of 15 · 95% of median | 82 | 3.0 |
| 2023 | 193 | 5th lowest of 15 · 79% of median | 74 | 1.6 |
| 2024 | 413 | 12th lowest of 15 · 170% of median | 151 | 2.0 |
| 2025 | 265 | 9th lowest of 15 · 109% of median | 86 | 2.0 |
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.