← My Water  ·  Print / save as PDF

COTTONWOOD CREEK DITCH

Structure dossier · WDID 4000529 · 1 · COTTONWOOD CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 22:34 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 1949-05-021882nd 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: ASPEN CREEK DITCH (1949-05-02). Immediately behind: COLUMBINE DITCH NO 1 (1949-09-23).

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
36281.01949-05-021954-03-20 6.00.0 CIRR J338

Recorded use (last 13 years on record)

In a median year this structure has a recorded diversion of 60 AF. Its most recent year on record, 1987, came in at 60 AF — 100% of that, and 7th lowest of the 13 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 66 8th lowest of 13 · 110% of median 35 2.0
1971 35 6th lowest of 13 · 58% of median 21 1.0
1973 71 10th lowest of 13 · 118% of median 27 2.0
1974 17 3rd lowest of 13 · 28% of median 17 1.0
1975 149 13th lowest of 13 · 248% of median 35 4.0
1976 20 5th lowest of 13 · 33% of median 14 1.0
1977 0 1st lowest of 13 · 0% of median 1 0.0
1978 126 12th lowest of 13 · 210% of median 31 6.0
1979 67 9th lowest of 13 · 112% of median 14 5.0
1980 72 11th lowest of 13 · 120% of median 31 1.5
1981 18 4th lowest of 13 · 30% of median 21 1.0
1986 12 2nd lowest of 13 · 20% of median 21 0.5
1987 60 7th lowest of 13 · 100% of median 20 4.0

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 288 measured days; currency unknown (no data-coverage date to compare against)
record continuity sparse 8% of the irrigation seasons in 1970-1987 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.