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BIG MONITOR DITCH NO. 1
Structure dossier · WDID 4001426 · 1 · MONITOR CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 19:48 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 1918-04-26 — 1791st most senior of the 4661 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: HENDRICKSON DITCH (1917-04-01). Immediately behind: BIG MONITOR RESERVOIR NO. 1 (1918-04-26).
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 |
|---|---|---|---|---|---|---|---|
| 31924.24952 | 1918-04-26 | 1954-03-20 | 51.85 | 0.0 | C | STOIRRDOM | J165, J166 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 436 AF. Its most recent year on record, 2022, came in at 631 AF — 145% of that, and 12th 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) |
|---|---|---|---|---|
| 2008 | 436 | 8th lowest of 15 · 100% of median | 71 | 4.0 |
| 2009 | 583 | 11th lowest of 15 · 134% of median | 61 | 10.0 |
| 2010 | 706 | 13th lowest of 15 · 162% of median | 72 | 8.0 |
| 2011 | 1,012 | 15th lowest of 15 · 232% of median | 86 | 6.0 |
| 2012 | 280 | 5th lowest of 15 · 64% of median | 41 | 4.0 |
| 2013 | 552 | 9th lowest of 15 · 127% of median | 91 | 5.0 |
| 2014 | 404 | 7th lowest of 15 · 93% of median | 78 | 6.0 |
| 2015 | 563 | 10th lowest of 15 · 129% of median | 73 | 7.5 |
| 2016 | 128 | 3rd lowest of 15 · 29% of median | 55 | 2.1 |
| 2017 | 333 | 6th lowest of 15 · 76% of median | 53 | 4.0 |
| 2018 | 6 | 1st lowest of 15 · 1% of median | 20 | 0.2 |
| 2019 | 904 | 14th lowest of 15 · 207% of median | 78 | 6.0 |
| 2020 | 238 | 4th lowest of 15 · 55% of median | 41 | 3.0 |
| 2021 | 115 | 2nd lowest of 15 · 26% of median | 36 | 2.5 |
| 2022 | 631 | 12th lowest of 15 · 145% of median | 92 | 6.0 |
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.