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A J ANDERSON DITCH
Structure dossier · WDID 1700577 · 1 · CROOKED ARROYO · DWR record
Where this page's figures come from
Generated 2026-08-27 22:04 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 1891-01-03 — 16th most senior of the 1909 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: OTERO CANAL (1890-03-03). Immediately behind: CANADY DITCH (1892-01-18).
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 |
|---|---|---|---|---|---|---|---|
| 14978.0 | 1891-01-03 | 1905-04-08 | 6.81 | 0.0 | C | IRR | 15 |
| 15947.0 | 1893-08-29 | 1905-04-08 | 8.19 | 0.0 | C | IRR | 23 |
Legal record & documents
2 decreed actions on record across
1 court case:
04/08/1905.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
04/08/1905 | 2 | 1905-04-08 | O |
DWR's own records for this structure: net amounts · transactions & adjudication history · scanned decrees (search a case number there for the imaged document). On this site: the district's full legal picture →
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 934 AF. Its most recent year on record, 2025, came in at 938 AF — 100% of that, and 10th 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 | 909 | 6th lowest of 15 · 97% of median | 191 | 8.6 |
| 2012 | 353 | 1st lowest of 15 · 38% of median | 78 | 5.0 |
| 2013 | 753 | 5th lowest of 15 · 81% of median | 136 | 6.9 |
| 2014 | 1,108 | 14th lowest of 15 · 119% of median | 202 | 7.2 |
| 2015 | 934 | 8th lowest of 15 · 100% of median | 181 | 12.7 |
| 2016 | 1,066 | 13th lowest of 15 · 114% of median | 168 | 5.6 |
| 2017 | 946 | 11th lowest of 15 · 101% of median | 154 | 6.2 |
| 2018 | 926 | 7th lowest of 15 · 99% of median | 173 | 6.3 |
| 2019 | 962 | 12th lowest of 15 · 103% of median | 146 | 8.2 |
| 2020 | 934 | 8th lowest of 15 · 100% of median | 181 | 4.9 |
| 2021 | 551 | 2nd lowest of 15 · 59% of median | 97 | 4.7 |
| 2022 | 597 | 3rd lowest of 15 · 64% of median | 118 | 6.6 |
| 2023 | 632 | 4th lowest of 15 · 68% of median | 273 | 5.0 |
| 2024 | 1,182 | 15th lowest of 15 · 127% of median | 366 | 7.4 |
| 2025 | 938 | 10th lowest of 15 · 100% of median | 304 | 8.5 |
Trends for this structure
Recorded use shows no clear trend over its last 15 recorded years — which is itself worth knowing.
How good is our record of it?
Grade A (9/10 points) — the components below are the finding; the letter alone is not.
The rubric, component by component
| Check | State | Detail |
|---|---|---|
| identity | complete | name, type, and water source all on file |
| decreed rights | on file | 2 right(s), seniority decoded |
| diversion record | present | 9062 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | continuous | 76% of the irrigation seasons in 1969-2025 carry measured days |
| published-record stability | stable | no upstream revisions recorded against this structure |
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.