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MCCORMICK DITCH
Structure dossier · WDID 5900627 · 1 · COAL CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 21:27 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 1903-06-01 — 255th most senior of the 2360 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: PARK DITCH (1903-05-28). Immediately behind: JONES HIGHLINE DITCH (1903-06-14).
Decreed rights (3)
| 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. | Units | UsesWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on. | Case |
|---|---|---|---|---|---|---|---|
| 19509.0 | 1903-06-01 | 1906-09-14 | 2.25 | 0.0 | C | IRRMUNCOMINDRECFIRDOMOTHRCH | 164 |
| 39252.19509 | 1903-06-01 | 1961-01-27 | 6.75 | 0.0 | C | IRR | 533 |
| 39252.37346 | 1952-04-01 | 1961-01-27 | 1.0 | 0.0 | C | DOMSTK | 558 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 605 AF. Its most recent year on record, 2019, came in at 521 AF — 86% of that, and 6th lowest of the 15 years with a recorded volume.
| Year | Diverted (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 record | Days recorded | Peak (cfs) |
|---|---|---|---|---|
| 2005 | 366 | 3rd lowest of 15 · 60% of median | 109 | 3.0 |
| 2006 | 605 | 8th lowest of 15 · 100% of median | 111 | 4.0 |
| 2007 | 1,451 | 15th lowest of 15 · 240% of median | 161 | 10.0 |
| 2008 | 888 | 14th lowest of 15 · 147% of median | 134 | 5.8 |
| 2009 | 805 | 12th lowest of 15 · 133% of median | 139 | 5.7 |
| 2010 | 676 | 11th lowest of 15 · 112% of median | 126 | 5.5 |
| 2011 | 606 | 9th lowest of 15 · 100% of median | 131 | 5.6 |
| 2012 | 860 | 13th lowest of 15 · 142% of median | 181 | 4.8 |
| 2013 | 572 | 7th lowest of 15 · 94% of median | 168 | 3.4 |
| 2014 | 220 | 1st lowest of 15 · 36% of median | 109 | 3.8 |
| 2015 | 501 | 4th lowest of 15 · 83% of median | 117 | 4.8 |
| 2016 | 653 | 10th lowest of 15 · 108% of median | 141 | 3.9 |
| 2017 | 258 | 2nd lowest of 15 · 43% of median | 146 | 1.5 |
| 2018 | 509 | 5th lowest of 15 · 84% of median | 163 | 3.2 |
| 2019 | 521 | 6th lowest of 15 · 86% of median | 128 | 3.4 |
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.