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ROY DITCH

Structure dossier · WDID 7900594 · 1 · HUERFANO RIVER · DWR record

Where this page's figures come from

Generated 2026-08-27 21:27 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 1866-05-01 — 16th most senior of the 930 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: VIGIL & CHAVEZ DITCH (1866-05-01). Immediately behind: BAXTER PIONEER DITCH (1866-05-03).

Decreed rights (3)

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
5965.01866-05-011889-06-12 0.70.0 CIRR 15
7761.01871-04-011889-06-12 1.00.0 CIRR 41
14427.01889-07-011898-02-23 1.00.0 CIRR

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 195 AF. Its most recent year on record, 2025, came in at 277 AF — 142% of that, and 11th lowest of the 15 years with a recorded volume.

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 recordDays recordedPeak (cfs)
2011 82 2nd lowest of 15 · 42% of median 89 0.7
2012 0 1st lowest of 15 · 0% of median 2 0.0
2013 131 6th lowest of 15 · 67% of median 104 0.9
2014 235 9th lowest of 15 · 120% of median 196 1.0
2015 195 7th lowest of 15 · 100% of median 153 0.8
2016 195 7th lowest of 15 · 100% of median 168 0.8
2017 110 4th lowest of 15 · 56% of median 102 1.6
2018 105 3rd lowest of 15 · 54% of median 103 0.8
2019 285 12th lowest of 15 · 146% of median 135 2.7
2020 120 5th lowest of 15 · 62% of median 119 0.8
2021 349 14th lowest of 15 · 179% of median 218 2.0
2022 400 15th lowest of 15 · 205% of median 246 2.0
2023 247 10th lowest of 15 · 127% of median 107 1.9
2024 304 13th lowest of 15 · 156% of median 145 2.6
2025 277 11th lowest of 15 · 142% of median 157 1.2

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.