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SLACK WEISS DITCH
Structure dossier · WDID 4700880 · 1 · NINEGAR CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 20:28 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.
Which of its rights get called out?
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 1890-06-03 — 498th most senior of the 1262 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: BURNS DITCH (1890-06-01). Immediately behind: SLACK & WEISS RES (1890-06-03).
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. | Units | UsesWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on. | Case |
|---|---|---|---|---|---|---|---|
| 26727.14764 | 1890-06-03 | 1932-11-26 | 9.2 | 0.0 | C | IRRDOM | 630 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 138 AF. Its most recent year on record, 2025, came in at 138 AF — 100% of that, and 7th 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) |
|---|---|---|---|---|
| 2006 | 195 | 12th lowest of 15 · 141% of median | 172 | 4.2 |
| 2007 | 264 | 14th lowest of 15 · 191% of median | 130 | 6.9 |
| 2008 | 138 | 7th lowest of 15 · 100% of median | 60 | 4.8 |
| 2009 | 174 | 10th lowest of 15 · 126% of median | 76 | 4.5 |
| 2010 | 132 | 6th lowest of 15 · 96% of median | 41 | 6.2 |
| 2011 | 507 | 15th lowest of 15 · 367% of median | 60 | 9.2 |
| 2013 | 175 | 11th lowest of 15 · 127% of median | 54 | 5.5 |
| 2014 | 119 | 4th lowest of 15 · 86% of median | 66 | 1.3 |
| 2015 | 122 | 5th lowest of 15 · 88% of median | 16 | 4.1 |
| 2016 | 83 | 3rd lowest of 15 · 60% of median | 41 | 1.0 |
| 2018 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 2019 | 47 | 2nd lowest of 15 · 34% of median | 27 | 0.9 |
| 2020 | 218 | 13th lowest of 15 · 158% of median | 56 | 2.0 |
| 2024 | 139 | 9th lowest of 15 · 101% of median | 67 | 1.1 |
| 2025 | 138 | 7th lowest of 15 · 100% of median | 124 | 0.6 |
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.