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MICHIGAN RES UPPER
Structure dossier · WDID 2303980 · RESERVOIR · MICHIGAN CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 20:33 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (e70d0b5) — every figure regenerates from this named code version and data image.
Current administration
● In priority — no active call senior to this structure's rights affects its district (23 active call(s) checked).
Which of its rights get called out?
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 1891-09-21 — 818th most senior of the 21881 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: 2303403 (1891-09-21). Immediately behind: 2300932 (1892-04-01).
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 |
|---|---|---|---|---|---|---|---|
| 15239.0 | 1891-09-21 | 1913-05-22 | 46.0 | 80.26 | A | IRRFIS |
Recorded use (last 12 years on record)
In a median year this structure has a recorded diversion of 73 AF. Its most recent year on record, 2008, came in at 63 AF — 86% of that, and 5th lowest of the 12 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) |
|---|---|---|---|---|
| 1983 | 149 | 10th lowest of 12 · 204% of median | 18 | 5.0 |
| 1984 | 206 | 12th lowest of 12 · 282% of median | 14 | 8.0 |
| 1985 | 131 | 9th lowest of 12 · 180% of median | 20 | 4.0 |
| 1987 | 149 | 10th lowest of 12 · 204% of median | 26 | 3.0 |
| 1988 | 56 | 3rd lowest of 12 · 77% of median | 14 | 3.0 |
| 1989 | 73 | 6th lowest of 12 · 100% of median | 22 | 5.8 |
| 1990 | 73 | 6th lowest of 12 · 100% of median | 10 | 7.5 |
| 1991 | 46 | 2nd lowest of 12 · 63% of median | 47 | 0.5 |
| 2005 | 44 | 1st lowest of 12 · 60% of median | 9 | 3.0 |
| 2006 | 60 | 4th lowest of 12 · 82% of median | 7 | 5.0 |
| 2007 | 89 | 8th lowest of 12 · 122% of median | 10 | 5.0 |
| 2008 | 63 | 5th lowest of 12 · 86% of median | 9 | 4.0 |
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.