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GREEN MOUNTAIN CANAL
Structure dossier · WDID 3600642 · 1 · BLUE RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 23:49 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 1903-09-17 — 207th most senior of the 1247 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: PLUNGER DITCH (1903-09-01). Immediately behind: MAY DITCH (1904-05-10).
Decreed rights (7)
| 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 |
|---|---|---|---|---|---|---|---|
| 19617.0 | 1903-09-17 | 1910-03-02 | 0.0 | 350.0 | C | DOMPWR | 50 |
| 19909.0 | 1904-07-05 | 1910-03-02 | 6.35 | 0.0 | C | IRRAUG | 160 |
| 19909.0 | 1904-07-05 | 1910-03-02 | 230.0 | 0.0 | A | IRRAUG | 160 |
| 49673.49466 | 1985-06-07 | 1986-12-31 | 10.0 | 0.0 | C | IRR | |
| 49798.0 | 1986-05-05 | 1986-12-31 | 3.0 | 0.0 | C | IRR | |
| 52230.49466 | 1985-06-07 | 1993-12-31 | 10.0 | 0.0 | C | IRR | |
| 53325.49773 | 1986-04-10 | 1996-12-31 | 3.0 | 0.0 | C | IRR |
Legal record & documents
14 decreed actions on record across
8 court cases:
96CW0341, 93CW0155, 86CW0358, 86CW0064, CA1805, 80CW0444, CA1880, CA1277.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
96CW0341 | 1 | 1996-12-31 | S |
93CW0155 | 1 | 1993-12-31 | S |
86CW0358 | 1 | 1986-12-31 | S |
86CW0064 | 1 | 1986-12-31 | S |
CA1805 | 2 | 1952-03-10 | O, S |
80CW0444 | 4 | 1952-03-10 | O, S |
CA1880 | 1 | 1910-03-02 | O |
CA1277 | 3 | 1910-03-02 | 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 2,699 AF. Its most recent year on record, 2024, came in at 2,699 AF — 100% of that, and 8th 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) |
|---|---|---|---|---|---|
| 2010 | 4,090 | 14th lowest of 15 · 152% of median | — | 365 | 30.5 |
| 2011 | 800 | 3rd lowest of 15 · 30% of median | — | 304 | 5.9 |
| 2012 | 710 | 1st lowest of 15 · 26% of median | — | 275 | 4.0 |
| 2013 | 710 | 1st lowest of 15 · 26% of median | — | 365 | 4.0 |
| 2014 | 3,150 | 11th lowest of 15 · 117% of median | — | 365 | 27.0 |
| 2015 | 3,284 | 12th lowest of 15 · 122% of median | — | 304 | 33.5 |
| 2016 | 1,046 | 4th lowest of 15 · 39% of median | 710 | 154 | 12.5 |
| 2017 | 5,161 | 15th lowest of 15 · 191% of median | — | 72 | 52.7 |
| 2018 | 2,652 | 7th lowest of 15 · 98% of median | — | 79 | 25.3 |
| 2019 | 3,057 | 10th lowest of 15 · 113% of median | 710 | 154 | 30.0 |
| 2020 | 2,576 | 6th lowest of 15 · 95% of median | — | 114 | 23.0 |
| 2021 | 3,565 | 13th lowest of 15 · 132% of median | — | 109 | 24.6 |
| 2022 | 2,767 | 9th lowest of 15 · 102% of median | 0 | 155 | 19.0 |
| 2023 | 2,227 | 5th lowest of 15 · 82% of median | 78 | 365 | 20.3 |
| 2024 | 2,699 | 8th lowest of 15 · 100% of median | 0 | 305 | 26.0 |
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 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 | 7 right(s), seniority decoded |
| diversion record | present | 7529 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | patchy | 58% of the irrigation seasons in 1964-2024 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.