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COPPOCK DITCH

Structure dossier · WDID 7200584 · 8 · PLATEAU CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 22:30 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (a1c9146) — 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 1915-08-08 — 412th most senior of the 2166 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: BROWN GULCH DITCH (1915-06-17). Immediately behind: COPPOCK DITCH ALT NO 1 (1915-08-08).

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
30895.23961915-08-081941-07-25 0.260.0 CIRR 451

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 20 AF. Its most recent year on record, 2023, came in at 72 AF — 360% of that, and 14th 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)
1998 12 5th lowest of 15 · 60% of median 32 0.3
1999 8 2nd lowest of 15 · 40% of median 78 0.3
2000 20 6th lowest of 15 · 100% of median 71 0.3
2001 25 10th lowest of 15 · 125% of median 103 0.5
2002 20 6th lowest of 15 · 100% of median 86 0.3
2003 21 9th lowest of 15 · 105% of median 107 0.3
2004 20 6th lowest of 15 · 100% of median 102 0.3
2005 10 3rd lowest of 15 · 50% of median 80 0.3
2006 11 4th lowest of 15 · 55% of median 85 0.3
2007 27 12th lowest of 15 · 135% of median 106 0.3
2008 29 13th lowest of 15 · 145% of median 110 0.3
2009 1 1st lowest of 15 · 5% of median 3 0.3
2011 26 11th lowest of 15 · 130% of median 58 0.3
2022 94 15th lowest of 15 · 470% of median 184 0.3
2023 72 14th lowest of 15 · 360% of median 141 0.3

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 2916 measured days; currency unknown (no data-coverage date to compare against)
record continuity sparse 38% of the irrigation seasons in 1988-2023 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.