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COLLINS NO 1 DITCH
Structure dossier · WDID 3700549 · 1 · GYPSUM CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 20:59 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 1901-04-30 — 235th most senior of the 2162 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: DOTSERO BLOCK WELL NO 1 (1900-07-10). Immediately behind: COLLINS NO 2 DITCH (1901-04-30).
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. | Units | UsesWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on. | Case |
|---|---|---|---|---|---|---|---|
| 20427.18747 | 1901-04-30 | 1907-06-04 | 0.4 | 0.0 | C | IRR | 227 |
| 23802.2374 | 1914-12-31 | 1915-06-07 | 0.56 | 0.0 | C | IRR | 227EX |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 33 AF. Its most recent year on record, 2022, came in at 33 AF — 100% of that, and 8th lowest of the 15 years with a recorded volume.
| Year | Diverted (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 record | Days recorded | Peak (cfs) |
|---|---|---|---|---|
| 1994 | 16 | 6th lowest of 15 · 48% of median | 30 | 0.3 |
| 1995 | 132 | 14th lowest of 15 · 400% of median | 125 | 1.2 |
| 1996 | 184 | 15th lowest of 15 · 558% of median | 126 | 1.4 |
| 1997 | 13 | 5th lowest of 15 · 39% of median | 19 | 0.4 |
| 1998 | 94 | 12th lowest of 15 · 285% of median | 119 | 0.4 |
| 1999 | 74 | 10th lowest of 15 · 224% of median | 121 | 0.4 |
| 2001 | 55 | 9th lowest of 15 · 167% of median | 34 | 1.2 |
| 2003 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 2004 | 32 | 7th lowest of 15 · 97% of median | 33 | 0.5 |
| 2005 | 83 | 11th lowest of 15 · 252% of median | 133 | 0.5 |
| 2017 | 126 | 13th lowest of 15 · 382% of median | 50 | 1.3 |
| 2018 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 2020 | 7 | 4th lowest of 15 · 21% of median | 12 | 0.3 |
| 2021 | 1 | 3rd lowest of 15 · 3% of median | 2 | 0.4 |
| 2022 | 33 | 8th lowest of 15 · 100% of median | 43 | 0.4 |
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.