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RIO GRANDE RES
Structure dossier · WDID 2003554 · 3 · RIO GRANDE · DWR record
Where this page's figures come from
Generated 2026-08-28 01:19 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 1889-10-30 — 304th 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: CONTINENTAL RES (1889-10-30). Immediately behind: SANTA MARIA RES (1889-10-30).
Decreed rights (27)
| 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 |
|---|---|---|---|---|---|---|---|
| 14548.0 | 1889-10-30 | 1896-05-01 | 0.0 | 0.0 | C | IRR | 361-A |
| 14641.0 | 1890-01-31 | 1896-05-01 | 0.0 | 0.0 | C | IRR | 361-B |
| 14815.0 | 1890-07-24 | 1896-05-01 | 0.0 | 0.0 | C | IRROTH | 363-B |
| 15296.0 | 1891-11-17 | 1896-05-01 | 0.0 | 0.0 | C | IRROTH | 365 |
| 16923.14791 | 1890-06-30 | 1903-04-09 | 0.0 | 0.0 | C | IRROTH | 1903-22E |
| 16923.15156 | 1891-06-30 | 1903-04-09 | 0.0 | 0.0 | C | IRROTH | 1903-24C |
| 16923.15156 | 1891-06-30 | 1903-04-09 | 0.0 | 0.0 | C | IRROTH | 1903-24F |
| 16923.15522 | 1892-06-30 | 1903-04-09 | 0.0 | 0.0 | C | IRROTH | 1903-30C |
| 16923.15522 | 1892-06-30 | 1903-04-09 | 0.0 | 0.0 | C | IRROTH | 1903-30F |
| 16923.15887 | 1893-06-30 | 1903-04-09 | 0.0 | 0.0 | C | IRROTH | 1903-34C |
| 16923.15887 | 1893-06-30 | 1903-04-09 | 0.0 | 0.0 | C | IRROTH | 1903-34G |
| 16923.16252 | 1894-06-30 | 1903-04-09 | 0.0 | 0.0 | C | IRROTH | 1903-37B |
| 16923.16617 | 1895-06-30 | 1903-04-09 | 0.0 | 0.0 | C | IRROTH | 1903-41B |
| 16983.0 | 1896-06-30 | 1903-04-09 | 0.0 | 0.0 | C | IRROTH | 1903-45C |
| 17348.0 | 1897-06-30 | 1903-04-09 | 0.0 | 0.0 | C | IRROTH | 1903-46C |
| 17713.0 | 1898-06-30 | 1903-04-09 | 0.0 | 0.0 | C | IRROTH | 1903-49D |
| 18078.0 | 1899-06-30 | 1903-04-09 | 0.0 | 0.0 | C | IRROTH | 1903-52C |
| 18443.0 | 1900-06-30 | 1903-04-09 | 0.0 | 0.0 | C | IRROTH | 1903-57A |
| 18808.0 | 1901-06-30 | 1903-04-09 | 0.0 | 0.0 | C | IRROTH | 1903-61A |
| 19511.0 | 1903-06-03 | 1916-09-13 | 10105.0 | 0.0 | A | IRRREC | 1916-63A |
| 24362.19509 | 1903-06-01 | 1934-10-15 | 5280.0 | 0.0 | A | IRR | 1934-2 |
| 47967.0 | 1981-04-30 | 1990-12-31 | 0.0 | 0.0 | A | IRR | |
| 47967.0 | 1981-04-30 | 1990-12-31 | 0.0 | 0.0 | C | IRR | |
| 48789.0 | 1983-07-31 | 1990-12-31 | 0.0 | 0.0 | A | IRR | |
| 48789.0 | 1983-07-31 | 1990-12-31 | 0.0 | 0.0 | C | IRR | |
| 55882.55498 | 2001-12-12 | 2003-12-31 | 23.5 | 69.9 | A | STOAUG | |
| 55882.55498 | 2001-12-12 | 2003-12-31 | 3.72 | 0.0 | C | STOAUG |
Legal record & documents
47 decreed actions on record across
11 court cases:
19CW3000, 03CW0041, 90CW0042, 22CW3040, 20CW3011, 10/15/1934, 09/13/1916, W3980, W3979, 22CW3011 and 1 more below.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
19CW3000 | 1 | 2003-12-31 | S |
03CW0041 | 1 | 2003-12-31 | S |
90CW0042 | 4 | 1990-12-31 | O |
22CW3040 | 1 | 1990-12-31 | O |
20CW3011 | 14 | 1990-12-31 | O, S |
10/15/1934 | 1 | 1934-10-15 | S |
09/13/1916 | 4 | 1916-09-13 | S |
W3980 | 4 | 1903-04-09 | S |
W3979 | 13 | 1903-04-09 | O, S |
22CW3011 | 2 | 1903-04-09 | S |
95CW0018 | 2 | 1896-05-01 | O |
DWR's own records for this structure: net amounts · transactions & adjudication history · scanned decrees (search a case number there for the imaged document). On this site: the district's full legal picture →
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 15,574 AF. Its most recent year on record, 2025, came in at 16,339 AF — 105% of that, and 9th lowest of the 15 years with a recorded volume.
This structure records both diversions and reservoir releases — they are separate water movements and are accounted separately below.
| 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 | Released (AF) | Days recorded | Peak (cfs) |
|---|---|---|---|---|---|
| 2011 | 6,904 | 3rd lowest of 15 · 44% of median | 16,614 | 105 | 575.8 |
| 2012 | 2,830 | 1st lowest of 15 · 18% of median | 16,329 | 173 | 33.2 |
| 2013 | 4,012 | 2nd lowest of 15 · 26% of median | 18,873 | 176 | 115.9 |
| 2014 | 15,388 | 7th lowest of 15 · 99% of median | 28,033 | 204 | 683.0 |
| 2015 | 25,051 | 14th lowest of 15 · 161% of median | 35,677 | 266 | 1514.8 |
| 2016 | 12,949 | 5th lowest of 15 · 83% of median | 31,835 | 366 | 583.7 |
| 2017 | 17,544 | 10th lowest of 15 · 113% of median | 22,907 | 365 | 294.0 |
| 2018 | 15,574 | 8th lowest of 15 · 100% of median | 40,376 | 365 | 1688.2 |
| 2019 | 43,307 | 15th lowest of 15 · 278% of median | 42,942 | 365 | 1578.7 |
| 2020 | 21,445 | 13th lowest of 15 · 138% of median | 5,897 | 366 | 183.5 |
| 2021 | 12,360 | 4th lowest of 15 · 79% of median | 10,877 | 365 | 121.3 |
| 2022 | 18,371 | 12th lowest of 15 · 118% of median | 13,295 | 365 | 840.2 |
| 2023 | 17,684 | 11th lowest of 15 · 114% of median | 20,342 | 365 | 292.7 |
| 2024 | 13,389 | 6th lowest of 15 · 86% of median | 11,771 | 366 | 160.0 |
| 2025 | 16,339 | 9th lowest of 15 · 105% of median | 19,435 | 304 | 277.2 |
Trends for this structure
Recorded use shows no clear trend over its last 15 recorded years — which is itself worth knowing.
How good is our record of it?
Grade B (8/10 points) — the components below are the finding; the letter alone is not.
The rubric, component by component
| Check | State | Detail |
|---|---|---|
| identity | complete | name, type, and water source all on file |
| decreed rights | on file | 27 right(s), seniority decoded |
| diversion record | present | 7074 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | patchy | 54% of the irrigation seasons in 1964-2025 carry measured days |
| published-record stability | stable | no upstream revisions recorded against this structure |
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.