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RIDDLE DITCH

Structure dossier · WDID 7201615 · 1 · PLATEAU CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 23:20 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 1995-10-01 — 1648th 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: MAIGATTER PUMP (1995-05-01). Immediately behind: DIBRELL SPRING (1995-10-23).

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
53325.532341995-10-011996-12-31 0.20.0 CIRR

Recorded use (last 11 years on record)

In a median year this structure has a recorded diversion of 14 AF. Its most recent year on record, 2020, came in at 4 AF — 29% of that, and 1st lowest of the 11 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)
2001 12 4th lowest of 11 · 86% of median 34 0.2
2003 9 3rd lowest of 11 · 64% of median 29 0.2
2004 14 6th lowest of 11 · 100% of median 35 0.2
2005 20 11th lowest of 11 · 143% of median 63 0.2
2006 19 10th lowest of 11 · 136% of median 52 0.2
2007 13 5th lowest of 11 · 93% of median 33 0.5
2008 7 2nd lowest of 11 · 50% of median 20 0.2
2009 14 6th lowest of 11 · 100% of median 35 0.2
2010 14 6th lowest of 11 · 100% of median 34 0.2
2011 17 9th lowest of 11 · 121% of median 38 0.2
2020 4 1st lowest of 11 · 29% of median 9 0.2

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 382 measured days; currency unknown (no data-coverage date to compare against)
record continuity sparse 9% of the irrigation seasons in 2001-2020 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.