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NICOL DITCH

Structure dossier · WDID 5200601 · 1 · COLORADO RIVER · DWR record

Where this page's figures come from

Generated 2026-08-27 23:32 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 1898-04-18 — 81st most senior of the 562 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: A P R NO 6 DITCH (1906-08-26). Immediately behind: SCHLEGEL DITCH (1909-08-15).

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
21707.17641898-04-181909-06-15 0.40.0 CIRRDOM 85

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 85 AF. Its most recent year on record, 2009, came in at 46 AF — 54% of that, and 4th 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)
1981 120 10th lowest of 15 · 141% of median 149 0.5
1982 120 10th lowest of 15 · 141% of median 149 0.5
1985 131 13th lowest of 15 · 154% of median 171 0.5
1986 162 15th lowest of 15 · 191% of median 184 0.9
1987 122 12th lowest of 15 · 144% of median 155 0.4
1988 35 2nd lowest of 15 · 41% of median 71 0.3
1989 35 2nd lowest of 15 · 41% of median 71 0.3
1990 63 5th lowest of 15 · 74% of median 80 0.4
1991 90 9th lowest of 15 · 106% of median 114 0.4
1993 70 7th lowest of 15 · 82% of median 82 0.5
1996 132 14th lowest of 15 · 155% of median 168 0.4
2003 65 6th lowest of 15 · 76% of median 67 0.5
2004 85 8th lowest of 15 · 100% of median 87 0.5
2008 20 1st lowest of 15 · 24% of median 41 0.2
2009 46 4th lowest of 15 · 54% of median 60 0.5

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 2410 measured days; currency unknown (no data-coverage date to compare against)
record continuity sparse 33% of the irrigation seasons in 1975-2009 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.