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ROSALIE DITCH

Structure dossier · WDID 8000736 · DITCH · ROSALIE RIVER · DWR record

Where this page's figures come from

Generated 2026-08-28 01:50 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (0576005) — 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.

Current administration

● Fully called out — call at LAST CHANCE DITCH 2 (SOUTH PLATTE RIVER, priority 1863-12-30).

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 1873-05-01 — 409th most senior of the 21881 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: 8000735 (1873-05-01). Immediately behind: 0801252 (1873-05-30).

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
8522.01873-05-011913-05-22 0.50.0 CIRR

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 111 AF. Its most recent year on record, 2022, came in at 81 AF — 73% of that, and 6th 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)
2004 107 7th lowest of 15 · 96% of median 140 0.5
2005 59 4th lowest of 15 · 53% of median 87 0.5
2006 53 3rd lowest of 15 · 48% of median 84 0.5
2007 166 14th lowest of 15 · 150% of median 168 0.5
2008 120 11th lowest of 15 · 108% of median 126 0.5
2009 117 9th lowest of 15 · 105% of median 121 0.5
2010 111 8th lowest of 15 · 100% of median 119 0.5
2011 46 2nd lowest of 15 · 41% of median 158 0.2
2013 119 10th lowest of 15 · 107% of median 150 0.5
2014 127 12th lowest of 15 · 114% of median 160 0.5
2015 175 15th lowest of 15 · 158% of median 177 0.5
2016 78 5th lowest of 15 · 70% of median 81 0.5
2020 26 1st lowest of 15 · 23% of median 27 0.5
2021 148 13th lowest of 15 · 133% of median 150 0.5
2022 81 6th lowest of 15 · 73% of median 87 0.5

How good is our record of it?

Grade B (7/10 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 3853 measured days; currency unknown (no data-coverage date to compare against)
record continuity sparse 37% of the irrigation seasons in 1973-2022 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.