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J M DITCH

Structure dossier · WDID 7900752 · 1 · RIO ALTO CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 21:06 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 1894-04-01 — 134th 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: MURRAY RESERVOIR (1893-09-01). Immediately behind: J & M RESERVOIR (1894-04-12).

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
17586.161621894-04-011901-10-15 1.20.0 CIRR 196

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 64 AF. Its most recent year on record, 2025, came in at 29 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)
2009 145 13th lowest of 15 · 227% of median 104 1.5
2010 36 5th lowest of 15 · 56% of median 34 1.2
2011 0 1st lowest of 15 · 0% of median 24 0.0
2012 40 6th lowest of 15 · 62% of median 63 0.5
2014 35 4th lowest of 15 · 55% of median 29 1.0
2016 98 12th lowest of 15 · 153% of median 213 0.3
2017 149 14th lowest of 15 · 233% of median 85 1.2
2018 56 7th lowest of 15 · 88% of median 114 0.8
2019 79 11th lowest of 15 · 123% of median 68 0.6
2020 64 8th lowest of 15 · 100% of median 86 0.5
2021 76 10th lowest of 15 · 119% of median 123 2.5
2022 72 9th lowest of 15 · 112% of median 168 0.9
2023 26 2nd lowest of 15 · 41% of median 31 0.5
2024 491 15th lowest of 15 · 767% of median 244 1.4
2025 29 3rd lowest of 15 · 45% of median 152 0.1

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.