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MILL DITCH NO. 1
Structure dossier · WDID 5800777 · 1 · BEAR RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 20:51 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 1883-05-25 — 3rd most senior of the 3097 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: FIX DITCH (1883-05-25). Immediately behind: WOOLEY DITCH (1883-05-25).
Decreed rights (4)
| 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 |
|---|---|---|---|---|---|---|---|
| 12198.0 | 1883-05-25 | 1892-09-22 | 2.29 | 0.0 | C | IRR | 1 |
| 33782.30832 | 1934-06-01 | 1946-09-14 | 2.83 | 0.0 | C | IRR | 337A |
| 51134.44103 | 1970-10-01 | 1990-12-31 | 0.5 | 0.0 | C | STK | |
| 59535.12586 | 1884-06-16 | 2013-12-31 | 3.0 | 0.0 | C | IRRFIRSTK |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 500 AF. Its most recent year on record, 2025, came in at 153 AF — 31% of that, and 1st 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) |
|---|---|---|---|---|
| 2011 | 294 | 5th lowest of 15 · 59% of median | 65 | 3.0 |
| 2012 | 410 | 6th lowest of 15 · 82% of median | 157 | 2.7 |
| 2013 | 500 | 8th lowest of 15 · 100% of median | 189 | 4.3 |
| 2014 | 804 | 12th lowest of 15 · 161% of median | 365 | 8.8 |
| 2015 | 441 | 7th lowest of 15 · 88% of median | 330 | 3.8 |
| 2016 | 949 | 13th lowest of 15 · 190% of median | 366 | 7.6 |
| 2017 | 610 | 9th lowest of 15 · 122% of median | 348 | 4.6 |
| 2018 | 672 | 10th lowest of 15 · 134% of median | 359 | 2.3 |
| 2019 | 1,071 | 14th lowest of 15 · 214% of median | 304 | 10.3 |
| 2020 | 1,584 | 15th lowest of 15 · 317% of median | 167 | 8.5 |
| 2021 | 714 | 11th lowest of 15 · 143% of median | 167 | 4.0 |
| 2022 | 172 | 3rd lowest of 15 · 34% of median | 75 | 1.3 |
| 2023 | 222 | 4th lowest of 15 · 44% of median | 81 | 3.0 |
| 2024 | 155 | 2nd lowest of 15 · 31% of median | 66 | 1.5 |
| 2025 | 153 | 1st lowest of 15 · 31% of median | 71 | 1.7 |
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.