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RUBY DITCH

Structure dossier · WDID 3600793 · 1 · WILLOW CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 22:21 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 1938-05-15 — 371st most senior of the 1247 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: SLATE CR GS SPRING (1938-05-14). Immediately behind: HALLDORSON PIPELINE (1938-08-01).

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. UnitsUsesWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on.Case
32276.01938-05-151952-03-10 1.00.0 CIRR 346

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 40 AF. Its most recent year on record, 2024, came in at 18 AF — 45% of that, and 3rd 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)
2006 65 12th lowest of 15 · 162% of median 58 0.6
2007 56 10th lowest of 15 · 140% of median 44 0.8
2008 60 11th lowest of 15 · 150% of median 81 0.9
2009 78 13th lowest of 15 · 195% of median 161 0.6
2010 40 8th lowest of 15 · 100% of median 46 0.7
2013 30 6th lowest of 15 · 75% of median 79 0.2
2015 25 5th lowest of 15 · 62% of median 79 0.2
2017 93 14th lowest of 15 · 232% of median 104 0.5
2018 154 15th lowest of 15 · 385% of median 124 0.8
2019 9 1st lowest of 15 · 22% of median 89 0.1
2020 46 9th lowest of 15 · 115% of median 110 0.2
2021 23 4th lowest of 15 · 58% of median 154 0.1
2022 39 7th lowest of 15 · 98% of median 110 0.3
2023 16 2nd lowest of 15 · 40% of median 106 0.2
2024 18 3rd lowest of 15 · 45% of median 135 0.1

How good is our record of it?

Grade B (8/10 points) — the components below are the finding; the letter alone is not.

The rubric, component by component
CheckStateDetail
identity complete name, type, and water source all on file
decreed rights on file 1 right(s), seniority decoded
diversion record present 5336 measured days; currency unknown (no data-coverage date to compare against)
record continuity patchy 41% of the irrigation seasons in 1963-2024 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.