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PATTERSON AND CUMMINS D
Structure dossier · WDID 3800931 · 1 · ROARING FORK RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 21:25 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 1893-11-20 — 322nd most senior of the 4788 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: MOUNTAIN MEADOWS DITCH (1902-05-31). Immediately behind: CROWLEY DITCH (1903-06-15).
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 |
|---|---|---|---|---|---|---|---|
| 21155.1603 | 1893-11-20 | 1907-12-14 | 4.5 | 0.0 | C | IRR | 210AAA |
| 30941.24971 | 1918-05-15 | 1936-08-25 | 2.5 | 0.0 | C | STOIRR | 405 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 920 AF. Its most recent year on record, 2024, came in at 1,025 AF — 111% of that, and 12th 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 | 313 | 1st lowest of 15 · 34% of median | 70 | 3.5 |
| 2011 | 977 | 11th lowest of 15 · 106% of median | 145 | 7.9 |
| 2012 | 959 | 10th lowest of 15 · 104% of median | 177 | 4.0 |
| 2013 | 705 | 4th lowest of 15 · 77% of median | 124 | 4.0 |
| 2014 | 920 | 8th lowest of 15 · 100% of median | 166 | 3.5 |
| 2015 | 838 | 6th lowest of 15 · 91% of median | 170 | 3.2 |
| 2016 | 820 | 5th lowest of 15 · 89% of median | 187 | 3.0 |
| 2017 | 517 | 2nd lowest of 15 · 56% of median | 157 | 3.5 |
| 2018 | 1,043 | 13th lowest of 15 · 113% of median | 181 | 3.6 |
| 2019 | 889 | 7th lowest of 15 · 97% of median | 171 | 3.9 |
| 2020 | 1,279 | 15th lowest of 15 · 139% of median | 192 | 5.2 |
| 2021 | 951 | 9th lowest of 15 · 103% of median | 97 | 5.7 |
| 2022 | 586 | 3rd lowest of 15 · 64% of median | 163 | 4.1 |
| 2023 | 1,159 | 14th lowest of 15 · 126% of median | 168 | 5.8 |
| 2024 | 1,025 | 12th lowest of 15 · 111% of median | 166 | 4.0 |
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.