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MCINTOSH ARROYA D
Structure dossier · WDID 2000737 · 1 · RIO GRANDE · DWR record
Where this page's figures come from
Generated 2026-08-27 21:04 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 1875-05-03 — 88th most senior of the 8016 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: ROUGH READY D (1875-05-02). Immediately behind: RIO GRANDE D 2 (1875-05-03).
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 |
|---|---|---|---|---|---|---|---|
| 9254.0 | 1875-05-03 | 1896-05-01 | 2.8 | 0.0 | C | IRR | 83 |
| 11473.0 | 1881-05-30 | 1896-05-01 | 1.2 | 0.0 | C | IRR | 215 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 771 AF. Its most recent year on record, 2025, came in at 1,033 AF — 134% of that, and 14th 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 | 471 | 1st lowest of 15 · 61% of median | 103 | 4.0 |
| 2012 | 471 | 1st lowest of 15 · 61% of median | 100 | 4.0 |
| 2013 | 620 | 5th lowest of 15 · 80% of median | 120 | 4.0 |
| 2014 | 785 | 9th lowest of 15 · 102% of median | 119 | 4.0 |
| 2015 | 495 | 3rd lowest of 15 · 64% of median | 129 | 4.0 |
| 2016 | 620 | 5th lowest of 15 · 80% of median | 121 | 4.0 |
| 2017 | 569 | 4th lowest of 15 · 74% of median | 106 | 4.0 |
| 2018 | 876 | 11th lowest of 15 · 114% of median | 150 | 4.0 |
| 2019 | 633 | 7th lowest of 15 · 82% of median | 115 | 4.0 |
| 2020 | 987 | 13th lowest of 15 · 128% of median | 196 | 4.0 |
| 2021 | 1,187 | 15th lowest of 15 · 154% of median | 210 | 4.0 |
| 2022 | 771 | 8th lowest of 15 · 100% of median | 194 | 4.0 |
| 2023 | 818 | 10th lowest of 15 · 106% of median | 201 | 4.0 |
| 2024 | 933 | 12th lowest of 15 · 121% of median | 195 | 4.0 |
| 2025 | 1,033 | 14th lowest of 15 · 134% of median | 172 | 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.