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CASTLETON DITCH
Structure dossier · WDID 5900535 · 1 · CARBON CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 21:10 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 1882-06-10 — 77th most senior of the 2360 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: GUNNISON CO MUNICIPAL PL (1882-06-01). Immediately behind: IMOBERSTEG WILLOW CR D (1882-06-15).
Decreed rights (3)
| 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 |
|---|---|---|---|---|---|---|---|
| 11849.0 | 1882-06-10 | 1906-09-14 | 5.875 | 0.0 | C | IRR | 35 |
| 15177.0 | 1891-07-21 | 1906-09-14 | 1.0 | 0.0 | C | IRR | 88 |
| 30667.11849 | 1882-06-10 | 1941-04-29 | 5.125 | 0.0 | C | IRR | 302 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 523 AF. Its most recent year on record, 2025, came in at 810 AF — 155% of that, and 12th 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) |
|---|---|---|---|---|
| 2011 | 1,142 | 14th lowest of 15 · 218% of median | 119 | 8.2 |
| 2012 | 236 | 3rd lowest of 15 · 45% of median | 90 | 4.1 |
| 2013 | 1,120 | 13th lowest of 15 · 214% of median | 105 | 8.6 |
| 2014 | 523 | 8th lowest of 15 · 100% of median | 85 | 5.1 |
| 2015 | 183 | 1st lowest of 15 · 35% of median | 46 | 2.3 |
| 2016 | 573 | 10th lowest of 15 · 110% of median | 101 | 4.6 |
| 2017 | 528 | 9th lowest of 15 · 101% of median | 94 | 4.9 |
| 2018 | 216 | 2nd lowest of 15 · 41% of median | 65 | 1.9 |
| 2019 | 439 | 7th lowest of 15 · 84% of median | 71 | 4.2 |
| 2020 | 612 | 11th lowest of 15 · 117% of median | 91 | 5.0 |
| 2021 | 351 | 5th lowest of 15 · 67% of median | 98 | 2.7 |
| 2022 | 303 | 4th lowest of 15 · 58% of median | 90 | 3.2 |
| 2023 | 435 | 6th lowest of 15 · 83% of median | 66 | 4.9 |
| 2024 | 1,317 | 15th lowest of 15 · 252% of median | 96 | 8.2 |
| 2025 | 810 | 12th lowest of 15 · 155% of median | 68 | 8.0 |
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.