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A A P DITCH
Structure dossier · WDID 5200500 · 1 · PINEY RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 20:44 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 1897-06-15 — 49th most senior of the 562 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: BRUNER DITCH HDG NO 2 (1894-05-20). Immediately behind: P W DITCH (1901-07-26).
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 |
|---|---|---|---|---|---|---|---|
| 19190.17333 | 1897-06-15 | 1904-03-08 | 1.0 | 0.0 | C | IRR | 45 |
| 30846.0 | 1934-06-15 | 1946-08-30 | 4.3 | 0.0 | C | IRR | 185 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 343 AF. Its most recent year on record, 2024, came in at 33 AF — 10% 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) |
|---|---|---|---|---|
| 1987 | 520 | 12th lowest of 15 · 152% of median | 61 | 5.1 |
| 1988 | 561 | 13th lowest of 15 · 164% of median | 74 | 4.3 |
| 1989 | 509 | 11th lowest of 15 · 148% of median | 71 | 4.3 |
| 1990 | 369 | 9th lowest of 15 · 108% of median | 63 | 4.0 |
| 1991 | 343 | 8th lowest of 15 · 100% of median | 164 | 3.0 |
| 1993 | 175 | 4th lowest of 15 · 51% of median | 101 | 1.5 |
| 1994 | 609 | 14th lowest of 15 · 178% of median | 89 | 5.0 |
| 1995 | 721 | 15th lowest of 15 · 210% of median | 87 | 5.0 |
| 2011 | 423 | 10th lowest of 15 · 123% of median | 61 | 5.3 |
| 2012 | 132 | 2nd lowest of 15 · 38% of median | 74 | 1.5 |
| 2013 | 228 | 6th lowest of 15 · 66% of median | 64 | 2.3 |
| 2016 | 174 | 3rd lowest of 15 · 51% of median | 119 | 1.3 |
| 2019 | 177 | 5th lowest of 15 · 52% of median | 57 | 2.3 |
| 2023 | 232 | 7th lowest of 15 · 68% of median | 76 | 2.0 |
| 2024 | 33 | 1st lowest of 15 · 10% of median | 61 | 0.4 |
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.