Hydrohistorian
← My Water · Print / save as PDF
PIONEER DITCH (ARKANSAS)
Structure dossier · WDID 1100518 · 1 · ARKANSAS RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 22:52 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 1890-06-19 — 250th 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: ROCK CLIFF DITCH (1890-01-30). Immediately behind: BLOW DITCH - EMPIRE CREEK (1890-12-01).
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 |
|---|---|---|---|---|---|---|---|
| 14780.0 | 1890-06-19 | 1901-01-31 | 7.0 | 0.0 | C | IRR | 65B |
Legal record & documents
15 decreed actions on record across
3 court cases:
98CW0137B, 98CW0137A, CA1702.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
98CW0137B | 7 | 1913-07-14 | O, S |
98CW0137A | 7 | 1913-07-14 | O, S |
CA1702 | 1 | 1901-01-31 | 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 974 AF. Its most recent year on record, 2003, 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) |
|---|---|---|---|---|
| 1988 | 724 | 6th lowest of 15 · 74% of median | 64 | 7.0 |
| 1990 | 996 | 10th lowest of 15 · 102% of median | 89 | 6.3 |
| 1991 | 1,636 | 12th lowest of 15 · 168% of median | 166 | 5.0 |
| 1992 | 1,749 | 13th lowest of 15 · 180% of median | 191 | 7.0 |
| 1993 | 2,975 | 15th lowest of 15 · 305% of median | 200 | 10.0 |
| 1994 | 904 | 7th lowest of 15 · 93% of median | 105 | 6.0 |
| 1995 | 974 | 8th lowest of 15 · 100% of median | 120 | 7.0 |
| 1996 | 986 | 9th lowest of 15 · 101% of median | 73 | 7.0 |
| 1997 | 382 | 4th lowest of 15 · 39% of median | 81 | 2.5 |
| 1998 | 2,869 | 14th lowest of 15 · 295% of median | 114 | 16.0 |
| 1999 | 415 | 5th lowest of 15 · 43% of median | 80 | 3.0 |
| 2000 | 1,245 | 11th lowest of 15 · 128% of median | 139 | 7.0 |
| 2001 | 0 | 1st lowest of 15 · 0% of median | 124 | 0.0 |
| 2002 | 0 | 1st lowest of 15 · 0% of median | 9 | 0.0 |
| 2003 | 0 | 1st lowest of 15 · 0% of median | 5 | 0.0 |
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 B (7/10 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 | 1 right(s), seniority decoded |
| diversion record | present | 2883 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | sparse | 12% of the irrigation seasons in 1912-2023 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.