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HARPER DITCH

Structure dossier · WDID 7200664 · 1 · REED WASH · DWR record

Where this page's figures come from

Generated 2026-08-27 21:24 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 1952-03-08 — 661st 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: RAILROAD RESERVOIR (1952-03-06). Immediately behind: VERNE A JONES D HGT NO 2 (1952-04-29).

Decreed rights (2)

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
37322.01952-03-081959-07-21 1.50.75 CIRR
46606.01977-08-081977-12-31 0.630.0 CIRR

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 240 AF. Its most recent year on record, 2018, came in at 136 AF — 57% of that, and 3rd 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)
1999 808 15th lowest of 15 · 337% of median 192 2.2
2000 786 14th lowest of 15 · 328% of median 190 2.1
2001 240 8th lowest of 15 · 100% of median 196 0.6
2002 204 7th lowest of 15 · 85% of median 166 0.6
2003 255 9th lowest of 15 · 106% of median 207 0.6
2004 257 10th lowest of 15 · 107% of median 208 0.6
2005 287 11th lowest of 15 · 120% of median 195 0.9
2006 151 6th lowest of 15 · 63% of median 172 0.8
2007 415 13th lowest of 15 · 173% of median 201 1.4
2008 382 12th lowest of 15 · 159% of median 176 1.6
2011 131 1st lowest of 15 · 55% of median 174 0.5
2013 132 2nd lowest of 15 · 55% of median 175 0.5
2016 149 5th lowest of 15 · 62% of median 174 0.8
2017 139 4th lowest of 15 · 58% of median 190 0.5
2018 136 3rd lowest of 15 · 57% of median 184 0.5

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.