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ANDERSON DITCH
Structure dossier · WDID 5400500 · 1 · LITTLE SNAKE RIVER · 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 (a1c9146) — every figure regenerates from this named code version and data image.
Where it sits in line
Priority 1921-05-31 — 178th most senior of the 724 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: MCCARGER SPG (1910-09-30). Immediately behind: ANDERSON DITCH ALT PT (1921-05-31).
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 |
|---|---|---|---|---|---|---|---|
| 41812.26083 | 1921-05-31 | 1972-05-30 | 7.5 | 0.0 | C | IRRSTK | 3 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 540 AF. Its most recent year on record, 2020, came in at 0 AF — 0% 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) |
|---|---|---|---|---|
| 2005 | 301 | 5th lowest of 15 · 56% of median | 78 | 2.0 |
| 2006 | 341 | 6th lowest of 15 · 63% of median | 90 | 2.0 |
| 2007 | 369 | 7th lowest of 15 · 68% of median | 96 | 2.0 |
| 2008 | 192 | 4th lowest of 15 · 36% of median | 52 | 2.8 |
| 2009 | 540 | 8th lowest of 15 · 100% of median | 69 | 4.3 |
| 2010 | 631 | 11th lowest of 15 · 117% of median | 71 | 7.0 |
| 2011 | 619 | 10th lowest of 15 · 115% of median | 63 | 7.0 |
| 2012 | 595 | 9th lowest of 15 · 110% of median | 102 | 3.0 |
| 2013 | 785 | 12th lowest of 15 · 145% of median | 97 | 7.0 |
| 2014 | 892 | 14th lowest of 15 · 165% of median | 97 | 7.0 |
| 2015 | 1,209 | 15th lowest of 15 · 224% of median | 111 | 7.0 |
| 2016 | 889 | 13th lowest of 15 · 165% of median | 89 | 5.3 |
| 2018 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 2019 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 2020 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
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.