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IRVING DITCH NO 2

Structure dossier · WDID 4000924 · 1 · LEROUX CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 19:54 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 1910-06-10 — 2076th most senior of the 4661 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: COWAN GULCH DITCH (1905-05-15). Immediately behind: PARSONS DITCH (1913-06-01).

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
41668.220751910-06-101969-08-11 0.50.0 CIRR L5

Recorded use (last 12 years on record)

In a median year this structure has a recorded diversion of 358 AF. Its most recent year on record, 1982, came in at 103 AF — 29% of that, and 2nd lowest of the 12 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)
1970 139 3rd lowest of 12 · 39% of median 37 2.0
1971 301 5th lowest of 12 · 84% of median 80 2.0
1972 678 12th lowest of 12 · 189% of median 120 3.0
1973 409 8th lowest of 12 · 114% of median 107 2.0
1974 411 9th lowest of 12 · 115% of median 143 1.5
1975 459 10th lowest of 12 · 128% of median 154 2.0
1976 492 11th lowest of 12 · 137% of median 142 2.0
1977 343 6th lowest of 12 · 96% of median 121 2.0
1979 143 4th lowest of 12 · 40% of median 85 1.5
1980 373 7th lowest of 12 · 104% of median 137 5.5
1981 96 1st lowest of 12 · 27% of median 29 2.0
1982 103 2nd lowest of 12 · 29% of median 33 2.0

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.