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RIVERSIDE-ALLEN DITCH
Structure dossier · WDID 1100534 · 1 · ARKANSAS RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 21:16 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
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 1872-11-01 — 87th 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: WHITE DITCH NO 2 (1872-05-01). Immediately behind: TROUT CREEK DITCH CO (1872-12-17).
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 |
|---|---|---|---|---|---|---|---|
| 8341.0 | 1872-11-01 | 1904-01-19 | 3.0 | 0.0 | C | IRR | |
| 11741.0 | 1882-02-22 | 1890-06-19 | 1.0 | 0.0 | C | IRR | 98 |
| 12274.0 | 1883-08-09 | 1890-06-19 | 9.0 | 0.0 | C | IRR | 135 |
| 14067.0 | 1888-07-06 | 1890-06-19 | 16.0 | 0.0 | C | IRR | 171 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 3,277 AF. Its most recent year on record, 2023, came in at 3,479 AF — 106% 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) |
|---|---|---|---|---|
| 2009 | 4,524 | 15th lowest of 15 · 138% of median | 306 | 21.5 |
| 2010 | 2,946 | 5th lowest of 15 · 90% of median | 140 | 27.2 |
| 2011 | 3,911 | 13th lowest of 15 · 119% of median | 163 | 18.1 |
| 2012 | 2,757 | 3rd lowest of 15 · 84% of median | 195 | 12.9 |
| 2013 | 3,277 | 8th lowest of 15 · 100% of median | 143 | 19.6 |
| 2014 | 4,472 | 14th lowest of 15 · 136% of median | 171 | 17.1 |
| 2015 | 3,436 | 11th lowest of 15 · 105% of median | 134 | 21.0 |
| 2016 | 3,429 | 10th lowest of 15 · 105% of median | 159 | 14.9 |
| 2017 | 3,057 | 6th lowest of 15 · 93% of median | 162 | 15.0 |
| 2018 | 3,356 | 9th lowest of 15 · 102% of median | 178 | 13.9 |
| 2019 | 3,136 | 7th lowest of 15 · 96% of median | 136 | 16.0 |
| 2020 | 2,800 | 4th lowest of 15 · 85% of median | 163 | 13.5 |
| 2021 | 2,237 | 2nd lowest of 15 · 68% of median | 180 | 13.2 |
| 2022 | 1,796 | 1st lowest of 15 · 55% of median | 174 | 7.5 |
| 2023 | 3,479 | 12th lowest of 15 · 106% of median | 166 | 15.5 |
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.