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SWAN SPRING WW DITCH

Structure dossier · WDID 4500787 · 1 · COLORADO RIVER · DWR record

Where this page's figures come from

Generated 2026-08-27 21:19 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 1889-05-01 — 80th most senior of the 1378 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: GANT RESERVOIR (1888-04-21). Immediately behind: ENTERPRISE DITCH (1891-07-01).

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
15307.143661889-05-011893-04-08 1.40.0 CIRR 109

Recorded use (last 13 years on record)

In a median year this structure has a recorded diversion of 28 AF. Its most recent year on record, 2001, came in at 0 AF — 0% of that, and 1st 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)
1986 147 13th lowest of 13 · 525% of median 98 1.0
1987 106 12th lowest of 13 · 379% of median 77 0.8
1988 27 6th lowest of 13 · 96% of median 55 0.3
1989 17 5th lowest of 13 · 61% of median 46 0.2
1990 0 1st lowest of 13 · 0% of median 3 0.0
1991 6 4th lowest of 13 · 21% of median 18 0.3
1992 28 7th lowest of 13 · 100% of median 39 0.4
1993 34 9th lowest of 13 · 121% of median 33 0.8
1994 0 1st lowest of 13 · 0% of median 4 0.0
1995 34 9th lowest of 13 · 121% of median 33 0.8
1996 32 8th lowest of 13 · 114% of median 27 0.8
1997 39 11th lowest of 13 · 139% of median 27 0.8
2001 0 1st lowest of 13 · 0% of median 2 0.0

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.