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PIONEER DITCH LEFT IN STREAM

Structure dossier · WDID 6502400 · 0 · NORTH FORK REPUBLICAN RI · DWR record

Where this page's figures come from

Generated 2026-08-27 20:39 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 1890-04-04 — 14th most senior of the 112 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: PIONEER DITCH (HEAD) (1890-04-04). Immediately behind: ROSENKRANS DITCH (1893-09-15).

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. UnitsUsesWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on.Case
14704.01890-04-041912-07-03 15.00.0 CAUG

Recorded use (last 10 years on record)

In a median year this structure has a recorded diversion of 1,918 AF. Its most recent year on record, 2025, came in at 886 AF — 46% of that, and 3rd lowest of the 10 years with a recorded volume.

This structure records both diversions and reservoir releases — they are separate water movements and are accounted separately below.

YearDiverted (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 recordReleased (AF)Days recordedPeak (cfs)
2016 216 1st lowest of 10 · 11% of median 216 17 7.6
2017 1,716 5th lowest of 10 · 89% of median 1,716 117 12.9
2018 2,272 10th lowest of 10 · 118% of median 2,272 131 18.2
2019 1,326 4th lowest of 10 · 69% of median 1,326 125 15.1
2020 2,214 9th lowest of 10 · 115% of median 2,214 222 10.7
2021 2,121 6th lowest of 10 · 111% of median 2,121 234 8.6
2022 2,154 7th lowest of 10 · 112% of median 2,154 244 7.7
2023 2,188 8th lowest of 10 · 114% of median 2,188 244 9.2
2024 621 2nd lowest of 10 · 32% of median 621 230 4.7
2025 886 3rd lowest of 10 · 46% of median 886 124 7.8

Call-derived yield: senior right divertible 23.8% of a median season / 0.9% dry-year.

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.