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BRAY & MAHON DITCH
Structure dossier · WDID 1100653 · 1 · COTTONWOOD CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 20:31 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.
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 1879-07-01 — 145th most senior of the 1489 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: 1100864 (1879-06-15). Immediately behind: LUCAS DITCH (1879-11-30).
Decreed rights (2)
| 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 |
|---|---|---|---|---|---|---|---|
| 10774.0 | 1879-07-01 | 1902-07-15 | 0.5 | 0.0 | C | IRR | 71A |
| 14406.0 | 1889-06-10 | 1902-07-15 | 1.0 | 0.0 | C | IRR | 179A |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 79 AF. Its most recent year on record, 2021, came in at 24 AF — 30% of that, and 3rd 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) |
|---|---|---|---|---|
| 2007 | 124 | 14th lowest of 15 · 157% of median | 192 | 0.5 |
| 2008 | 119 | 13th lowest of 15 · 151% of median | 366 | 0.5 |
| 2009 | 79 | 8th lowest of 15 · 100% of median | 306 | 0.5 |
| 2010 | 70 | 7th lowest of 15 · 89% of median | 93 | 0.5 |
| 2011 | 99 | 10th lowest of 15 · 125% of median | 110 | 0.5 |
| 2012 | 0 | 1st lowest of 15 · 0% of median | 10 | 0.0 |
| 2013 | 0 | 1st lowest of 15 · 0% of median | 2 | 0.0 |
| 2014 | 135 | 15th lowest of 15 · 171% of median | 138 | 1.0 |
| 2015 | 101 | 11th lowest of 15 · 128% of median | 155 | 0.5 |
| 2016 | 104 | 12th lowest of 15 · 132% of median | 83 | 1.6 |
| 2017 | 94 | 9th lowest of 15 · 119% of median | 141 | 0.8 |
| 2018 | 44 | 5th lowest of 15 · 56% of median | 67 | 0.5 |
| 2019 | 27 | 4th lowest of 15 · 34% of median | 39 | 1.0 |
| 2020 | 52 | 6th lowest of 15 · 66% of median | 12 | 4.4 |
| 2021 | 24 | 3rd lowest of 15 · 30% of median | 47 | 0.6 |
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.