Hydrohistorian

← My Water  ·  Print / save as PDF

WILLISS NO 1 DITCH

Structure dossier · WDID 5101294 · 1 · KOVACS DRAW · DWR record

Where this page's figures come from

Generated 2026-08-28 03:48 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

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 1972-12-31 — 1247th most senior of the 2208 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: TRIPLE DIAMOND WELL NO 1 (1964-12-31). Immediately behind: TUNDRA SPRING (1973-08-31).

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
48942.449251972-12-311984-12-31 0.50.0 CIRR

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 84 AF. Its most recent year on record, 2022, came in at 43 AF — 51% of that, and 1st 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)
2007 84 8th lowest of 15 · 100% of median 45 1.5
2008 266 15th lowest of 15 · 317% of median 74 2.5
2009 122 12th lowest of 15 · 145% of median 62 1.5
2010 101 11th lowest of 15 · 120% of median 51 2.0
2011 180 14th lowest of 15 · 214% of median 99 2.0
2013 98 10th lowest of 15 · 117% of median 76 1.0
2014 63 5th lowest of 15 · 75% of median 40 1.0
2015 84 8th lowest of 15 · 100% of median 80 1.0
2016 51 3rd lowest of 15 · 61% of median 90 0.5
2017 49 2nd lowest of 15 · 58% of median 83 0.5
2018 67 6th lowest of 15 · 80% of median 76 0.5
2019 134 13th lowest of 15 · 160% of median 80 1.6
2020 79 7th lowest of 15 · 94% of median 65 1.0
2021 55 4th lowest of 15 · 66% of median 76 0.5
2022 43 1st lowest of 15 · 51% of median 49 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 2176 measured days; currency unknown (no data-coverage date to compare against)
record continuity sparse 27% of the irrigation seasons in 1985-2022 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.