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GREEN MTN HYDRO-ELECTRIC
Structure dossier · WDID 3600881 · 9 · BLUE RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 19:51 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 in line
Priority 1935-08-01 — 315th 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: ELLIOTT CREEK FEEDER (1935-08-01). Immediately behind: GREEN MOUNTAIN RESERVOIR (1935-08-01).
Decreed rights (1)
| 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 |
|---|---|---|---|---|---|---|---|
| 31258.0 | 1935-08-01 | 1955-10-12 | 1726.0 | 0.0 | C | PWR | 4A |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 277,084 AF. Its most recent year on record, 2024, came in at 309,157 AF — 112% of that, and 9th 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 | 272,897 | 7th lowest of 15 · 98% of median | 365 | 1450.0 |
| 2011 | 436,347 | 14th lowest of 15 · 158% of median | 365 | 1480.0 |
| 2012 | 143,207 | 1st lowest of 15 · 52% of median | 366 | 507.4 |
| 2013 | 164,483 | 2nd lowest of 15 · 59% of median | 365 | 760.9 |
| 2014 | 487,403 | 15th lowest of 15 · 176% of median | 365 | 1520.0 |
| 2015 | 403,130 | 13th lowest of 15 · 146% of median | 365 | 1524.9 |
| 2016 | 326,383 | 11th lowest of 15 · 118% of median | 366 | 1477.7 |
| 2017 | 320,572 | 10th lowest of 15 · 116% of median | 365 | 1443.0 |
| 2018 | 193,024 | 4th lowest of 15 · 70% of median | 365 | 910.0 |
| 2019 | 391,086 | 12th lowest of 15 · 141% of median | 365 | 2492.0 |
| 2020 | 250,656 | 5th lowest of 15 · 90% of median | 366 | 1441.6 |
| 2021 | 174,091 | 3rd lowest of 15 · 63% of median | 365 | 722.4 |
| 2022 | 254,781 | 6th lowest of 15 · 92% of median | 365 | 1441.6 |
| 2023 | 277,084 | 8th lowest of 15 · 100% of median | 365 | 996.6 |
| 2024 | 309,157 | 9th lowest of 15 · 112% of median | 305 | 1676.7 |
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.