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HORN DITCH NO 1

Structure dossier · WDID 5100717 · 1 · WILLOW CREEK · 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 1936-07-01 — 569th 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: HORN DITCH NO 2 (1935-07-01). Immediately behind: F W LINKE NO 3 RESERVOIR (1940-10-01).

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
37566.315931936-07-011957-01-14 2.00.0 CIRRDOMSTK 526

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 298 AF. Its most recent year on record, 2022, came in at 111 AF — 37% of that, and 3rd lowest of the 15 years with a recorded volume.

This structure records both diversions and reservoir releases — they are separate water movements and are accounted separately below.

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 recordReleased (AF)Days recordedPeak (cfs)
1993 853 12th lowest of 15 · 286% of median — 100 6.5
1994 639 11th lowest of 15 · 214% of median — 82 6.0
1995 298 8th lowest of 15 · 100% of median — 51 3.0
1996 1,510 15th lowest of 15 · 507% of median — 123 6.2
1997 982 13th lowest of 15 · 330% of median — 93 6.5
1998 348 9th lowest of 15 · 117% of median — 28 6.5
1999 1,027 14th lowest of 15 · 345% of median — 84 6.2
2014 103 2nd lowest of 15 · 35% of median — 27 2.0
2015 270 7th lowest of 15 · 91% of median — 78 2.2
2016 353 10th lowest of 15 · 118% of median 67 58 5.0
2017 222 5th lowest of 15 · 74% of median — 61 4.0
2018 71 1st lowest of 15 · 24% of median — 21 2.0
2019 246 6th lowest of 15 · 83% of median — 64 3.0
2020 180 4th lowest of 15 · 60% of median — 78 3.0
2022 111 3rd lowest of 15 · 37% of median 111 54 1.4

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.