Hydrohistorian

← My Water  ·  Print / save as PDF

COZZA NO 2 DITCH

Structure dossier · WDID 3900541 · 1 · COZZA GULCH · DWR record

Where this page's figures come from

Generated 2026-08-27 21:04 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 1904-04-01 — 172nd most senior of the 1758 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: BAXTER SP BR & WASTE W D (1904-12-07). Immediately behind: MCKEAL NO 3 DITCH (1903-04-15).

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
20797.198141904-04-011907-05-27 0.20.0 CIRR 170
44559.367981950-10-011972-12-31 1.40.0 CIRR

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 159 AF. Its most recent year on record, 2024, came in at 277 AF — 174% of that, and 10th 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)
2004 159 8th lowest of 15 · 100% of median 167 0.7
2005 188 9th lowest of 15 · 118% of median 190 0.5
2012 141 6th lowest of 15 · 89% of median 182 0.8
2013 72 2nd lowest of 15 · 45% of median 135 0.5
2014 294 12th lowest of 15 · 185% of median 197 0.9
2015 151 7th lowest of 15 · 95% of median 184 0.5
2016 80 3rd lowest of 15 · 50% of median 129 0.5
2017 131 5th lowest of 15 · 82% of median 159 0.5
2018 64 1st lowest of 15 · 40% of median 167 0.3
2019 499 14th lowest of 15 · 314% of median 176 2.2
2020 332 13th lowest of 15 · 209% of median 178 1.4
2021 110 4th lowest of 15 · 69% of median 223 0.3
2022 281 11th lowest of 15 · 177% of median 156 1.1
2023 535 15th lowest of 15 · 336% of median 185 1.5
2024 277 10th lowest of 15 · 174% of median 189 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.