Hydrohistorian
← My Water · Print / save as PDF
RIO GRANDE PIEDRA VLY D
Structure dossier · WDID 2000811 · 1 · RIO GRANDE · DWR record
Where this page's figures come from
Generated 2026-08-27 21:05 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 1877-11-30 — 150th 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: MILL D (1877-09-21). Immediately behind: MACLEOD D 5 (1878-04-01).
Decreed rights (11)
| 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 |
|---|---|---|---|---|---|---|---|
| 10196.0 | 1877-11-30 | 1896-05-01 | 42.9 | 0.0 | C | IRR | 146 |
| 12144.0 | 1883-04-01 | 1896-05-01 | 32.8 | 0.0 | C | IRR | 241 |
| 16923.15156 | 1891-06-30 | 1903-04-09 | 0.38 | 0.0 | C | IRR | 1903-24 |
| 16923.15522 | 1892-06-30 | 1903-04-09 | 0.85 | 0.0 | C | IRR | 1903-30 |
| 16923.15887 | 1893-06-30 | 1903-04-09 | 1.14 | 0.0 | C | IRR | 1903-34 |
| 16983.0 | 1896-06-30 | 1903-04-09 | 1.91 | 0.0 | C | IRR | 1903-45 |
| 17348.0 | 1897-06-30 | 1903-04-09 | 0.57 | 0.0 | C | IRR | 1903-46 |
| 17713.0 | 1898-06-30 | 1903-04-09 | 3.0 | 0.0 | C | IRR | 1903-49 |
| 18078.0 | 1899-06-30 | 1903-04-09 | 3.05 | 0.0 | C | IRR | 1903-52 |
| 18443.0 | 1900-06-30 | 1903-04-09 | 4.46 | 0.0 | C | IRR | 1903-57 |
| 18808.0 | 1901-06-30 | 1903-04-09 | 3.42 | 0.0 | C | IRR | 1903-61 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 20,506 AF. Its most recent year on record, 2025, came in at 20,119 AF — 98% of that, and 7th 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 | 21,179 | 12th lowest of 15 · 103% of median | 216 | 78.3 |
| 2012 | 19,972 | 6th lowest of 15 · 97% of median | 211 | 77.4 |
| 2013 | 18,695 | 3rd lowest of 15 · 91% of median | 207 | 75.7 |
| 2014 | 21,831 | 14th lowest of 15 · 106% of median | 214 | 84.5 |
| 2015 | 20,506 | 8th lowest of 15 · 100% of median | 215 | 88.5 |
| 2016 | 21,041 | 10th lowest of 15 · 103% of median | 225 | 80.0 |
| 2017 | 21,348 | 13th lowest of 15 · 104% of median | 217 | 77.4 |
| 2018 | 12,220 | 1st lowest of 15 · 60% of median | 169 | 75.7 |
| 2019 | 22,035 | 15th lowest of 15 · 108% of median | 230 | 86.6 |
| 2020 | 19,218 | 4th lowest of 15 · 94% of median | 216 | 75.7 |
| 2021 | 18,545 | 2nd lowest of 15 · 90% of median | 199 | 75.7 |
| 2022 | 19,884 | 5th lowest of 15 · 97% of median | 217 | 75.7 |
| 2023 | 20,952 | 9th lowest of 15 · 102% of median | 216 | 81.1 |
| 2024 | 21,158 | 11th lowest of 15 · 103% of median | 216 | 75.7 |
| 2025 | 20,119 | 7th lowest of 15 · 98% of median | 212 | 75.7 |
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.