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HARRISON DITCH

Structure dossier · WDID 7200667 · 1 · WALLACE GULCH · DWR record

Where this page's figures come from

Generated 2026-08-28 00:09 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 1915-12-21 — 417th 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: WEBB NO 3 RESERVOIR (1915-10-20). Immediately behind: HARRISON HEELY DITCH (1915-12-21).

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
30895.240951915-12-211941-07-25 0.270.0 CIRR

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 63 AF. Its most recent year on record, 2024, came in at 17 AF — 27% of that, and 2nd 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)
2001 109 15th lowest of 15 · 173% of median 184 0.5
2002 3 1st lowest of 15 · 5% of median 14 0.2
2003 60 7th lowest of 15 · 95% of median 145 0.3
2004 54 6th lowest of 15 · 86% of median 116 0.3
2005 87 14th lowest of 15 · 138% of median 132 0.5
2006 86 13th lowest of 15 · 136% of median 136 0.6
2009 70 11th lowest of 15 · 111% of median 129 0.3
2010 63 8th lowest of 15 · 100% of median 144 0.3
2011 69 10th lowest of 15 · 110% of median 133 0.3
2012 43 5th lowest of 15 · 68% of median 185 0.3
2013 71 12th lowest of 15 · 113% of median 134 0.3
2014 63 8th lowest of 15 · 100% of median 143 0.3
2016 33 3rd lowest of 15 · 52% of median 82 0.2
2023 33 3rd lowest of 15 · 52% of median 67 0.5
2024 17 2nd lowest of 15 · 27% of median 31 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 3069 measured days; currency unknown (no data-coverage date to compare against)
record continuity sparse 27% of the irrigation seasons in 1972-2024 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.