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PARRY NO 1 DITCH

Structure dossier · WDID 3800926 · 1 · CRYSTAL RIVER · DWR record

Where this page's figures come from

Generated 2026-08-27 19:48 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 in line

Priority 1910-10-10362nd most senior of the 4788 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: HALL DITCH NPD (1890-07-01). Immediately behind: PARRY NO 2 DITCH (1911-07-01).

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
22603.221971910-10-101911-11-21 0.720.0 CIRRDOM 230

Recorded use (last 11 years on record)

In a median year this structure has a recorded diversion of 294 AF. Its most recent year on record, 1985, came in at 337 AF — 115% of that, and 10th 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)
1975 294 6th lowest of 11 · 100% of median 149 1.0
1976 325 9th lowest of 11 · 110% of median 165 1.0
1977 175 3rd lowest of 11 · 60% of median 176 0.5
1978 152 1st lowest of 11 · 52% of median 153 0.5
1979 152 1st lowest of 11 · 52% of median 153 0.5
1980 303 7th lowest of 11 · 103% of median 153 1.0
1981 240 5th lowest of 11 · 82% of median 122 1.0
1982 238 4th lowest of 11 · 81% of median 121 1.0
1983 303 7th lowest of 11 · 103% of median 153 1.0
1984 337 10th lowest of 11 · 115% of median 170 1.0
1985 337 10th lowest of 11 · 115% of median 170 1.0

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.