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MCKAY DITCH

Structure dossier · WDID 3600734 · 1 · BLUE RIVER · DWR record

Where this page's figures come from

Generated 2026-08-27 21:23 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 1926-10-01 — 369th most senior of the 1247 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: VALIER NO 2 DITCH (1922-08-01). Immediately behind: SLATE CR GS SPRING (1938-05-14).

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
32075.280321926-10-011952-03-10 17.950.0 CIRR 334

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 234 AF. Its most recent year on record, 2024, came in at 0 AF — 0% of that, and 1st lowest of the 15 years with a recorded volume.

This structure records both diversions and reservoir releases — they are separate water movements and are accounted separately below.

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 recordReleased (AF)Days recordedPeak (cfs)
2001 276 11th lowest of 15 · 118% of median — 29 7.1
2002 322 13th lowest of 15 · 138% of median — 51 8.2
2003 154 6th lowest of 15 · 66% of median — 28 16.9
2004 311 12th lowest of 15 · 133% of median — 78 6.4
2005 43 2nd lowest of 15 · 18% of median — 23 5.9
2006 243 9th lowest of 15 · 104% of median — 115 4.1
2007 46 3rd lowest of 15 · 20% of median — 86 0.3
2008 172 7th lowest of 15 · 74% of median — 137 1.1
2009 87 4th lowest of 15 · 37% of median — 101 0.8
2010 681 15th lowest of 15 · 291% of median — 127 4.9
2012 234 8th lowest of 15 · 100% of median — 95 2.1
2013 337 14th lowest of 15 · 144% of median — 92 3.7
2014 258 10th lowest of 15 · 110% of median — 34 5.8
2023 89 5th lowest of 15 · 38% of median 0 22 6.0
2024 0 1st lowest of 15 · 0% of median — 9 0.0

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.