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RIEVA DITCH AP2

Structure dossier · WDID 7100690 · 7 · WEST DOLORES RIVER · DWR record

Where this page's figures come from

Generated 2026-08-27 21:20 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (f6d7fdc) — 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 1900-03-21 — 57th most senior of the 279 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: RIEVA DITCH (1900-03-21). Immediately behind: RIEVA DITCH AP1 (1900-03-21).

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
18342.01900-03-211933-12-18 0.00.0 CIRR D-41

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 81 AF. Its most recent year on record, 2025, came in at 17 AF — 21% 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)
2011 200 15th lowest of 15 · 247% of median 128 1.1
2012 52 5th lowest of 15 · 64% of median 142 0.4
2013 99 11th lowest of 15 · 122% of median 99 0.6
2014 145 14th lowest of 15 · 179% of median 142 0.9
2015 123 13th lowest of 15 · 152% of median 166 0.8
2016 108 12th lowest of 15 · 133% of median 145 0.7
2017 81 8th lowest of 15 · 100% of median 110 0.8
2018 82 9th lowest of 15 · 101% of median 195 0.5
2019 53 6th lowest of 15 · 65% of median 203 0.2
2020 88 10th lowest of 15 · 109% of median 126 0.8
2021 71 7th lowest of 15 · 88% of median 176 0.6
2022 26 4th lowest of 15 · 32% of median 72 0.3
2023 16 2nd lowest of 15 · 20% of median 56 0.2
2024 3 1st lowest of 15 · 4% of median 28 0.1
2025 17 3rd lowest of 15 · 21% of median 82 0.2

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.