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ANNAS DITCH

Structure dossier · WDID 5800511 · 1 · HUNT CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 22:49 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (a1c9146) — 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 1891-05-02 — 136th most senior of the 3097 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: F D HUTCHINSON IRRIGATING DITCH (1890-07-15). Immediately behind: PALISADE DITCH (1891-05-02).

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
15097.01891-05-021892-09-22 0.70.0 CIRR (94)106

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 86 AF. Its most recent year on record, 1980, came in at 74 AF — 86% of that, and 5th 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)
1947 207 15th lowest of 15 · 241% of median 139 1.5
1948 115 12th lowest of 15 · 134% of median 85 0.7
1950 86 8th lowest of 15 · 100% of median 64 0.7
1951 142 13th lowest of 15 · 165% of median 105 0.7
1954 33 3rd lowest of 15 · 38% of median 38 0.7
1955 97 10th lowest of 15 · 113% of median 72 0.7
1956 42 4th lowest of 15 · 49% of median 33 0.7
1957 17 1st lowest of 15 · 20% of median 17 0.7
1958 29 2nd lowest of 15 · 34% of median 27 0.7
1959 85 6th lowest of 15 · 99% of median 69 0.7
1960 85 6th lowest of 15 · 99% of median 65 0.7
1970 145 14th lowest of 15 · 169% of median 32 4.0
1976 107 11th lowest of 15 · 124% of median 81 0.7
1978 92 9th lowest of 15 · 107% of median 68 0.7
1980 74 5th lowest of 15 · 86% of median 54 0.7

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 1935 measured days; currency unknown (no data-coverage date to compare against)
record continuity sparse 19% of the irrigation seasons in 1933-1980 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.