Hydrohistorian
← My Water · Print / save as PDF
GRAND VALLEY CANAL
Structure dossier · WDID 7200645 · 1 · COLORADO RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 23:01 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (a1c9146) — 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 1882-08-22 — 164th most senior of the 2166 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: GRAND JCT STEAM PLT WELL (1912-02-28). Immediately behind: GRAND VALLEY PROJECT (1889-10-01).
Decreed rights (5)
| 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 |
|---|---|---|---|---|---|---|---|
| 22729.11922 | 1882-08-22 | 1912-07-22 | 520.81 | 0.0 | C | IRRMUNIND | 1 |
| 30895.11922 | 1882-08-22 | 1941-07-25 | 300.0 | 0.0 | C | DOM | |
| 30895.23491 | 1914-04-26 | 1941-07-25 | 119.47 | 0.0 | C | IRR | |
| 35476.0 | 1947-02-17 | 1959-07-21 | 0.0 | 0.0 | C | MUNINDDOM | |
| 35504.0 | 1947-03-17 | 1959-07-21 | 0.0 | 0.0 | C | IRRMUNDOM |
Legal record & documents
9 decreed actions on record across
6 court cases:
W3532, 84CW0414, CA5812, 84CW0218, CA1927, 85CW0235.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
W3532 | 1 | 1959-07-21 | S |
84CW0414 | 1 | 1959-07-21 | S |
CA5812 | 3 | 1941-07-25 | S |
84CW0218 | 1 | 1941-07-25 | S |
CA1927 | 1 | 1912-07-22 | S |
85CW0235 | 2 | 1912-07-22 | S |
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 258,081 AF. Its most recent year on record, 2024, came in at 258,081 AF — 100% of that, and 8th 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 | 249,372 | 2nd lowest of 15 · 97% of median | 365 | 657.0 |
| 2011 | 263,446 | 10th lowest of 15 · 102% of median | 365 | 678.0 |
| 2012 | 255,370 | 6th lowest of 15 · 99% of median | 366 | 677.0 |
| 2013 | 265,544 | 14th lowest of 15 · 103% of median | 365 | 698.0 |
| 2014 | 268,181 | 15th lowest of 15 · 104% of median | 365 | 704.0 |
| 2015 | 264,791 | 13th lowest of 15 · 103% of median | 334 | 678.0 |
| 2016 | 254,786 | 4th lowest of 15 · 99% of median | 214 | 704.0 |
| 2017 | 263,986 | 11th lowest of 15 · 102% of median | 275 | 707.0 |
| 2018 | 261,834 | 9th lowest of 15 · 102% of median | 365 | 687.0 |
| 2019 | 264,126 | 12th lowest of 15 · 102% of median | 365 | 707.0 |
| 2020 | 255,671 | 7th lowest of 15 · 99% of median | 366 | 694.0 |
| 2021 | 255,347 | 5th lowest of 15 · 99% of median | 365 | 679.0 |
| 2022 | 221,968 | 1st lowest of 15 · 86% of median | 365 | 804.9 |
| 2023 | 249,683 | 3rd lowest of 15 · 97% of median | 365 | 722.4 |
| 2024 | 258,081 | 8th lowest of 15 · 100% of median | 305 | 656.0 |
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 A (9/10 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 | 5 right(s), seniority decoded |
| diversion record | present | 15995 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | continuous | 100% of the irrigation seasons in 1968-2024 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.