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DEWEESE DITCH
Structure dossier · WDID 3900548 · 1 · CANYON CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 22:34 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 1897-11-15 — 160th most senior of the 1758 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: COULTER RESERVOIR (1903-05-18). Immediately behind: DALLS DITCH (1901-04-27).
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 |
|---|---|---|---|---|---|---|---|
| 20527.17486 | 1897-11-15 | 1906-03-16 | 4.0 | 0.0 | C | IRRDOM | 156 |
| 31780.2275 | 1912-04-15 | 1937-01-09 | 11.2 | 0.0 | C | IRR | 213A |
| 38167.0 | 1954-07-01 | 1966-11-10 | 19.8 | 0.0 | C | IRR | 315 |
Legal record & documents
8 decreed actions on record across
5 court cases:
W0803, W0091, CA4914, CA3104, CA1174.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
W0803 | 2 | 1966-11-10 | S |
W0091 | 1 | 1966-11-10 | S |
CA4914 | 1 | 1966-11-10 | S |
CA3104 | 2 | 1937-01-09 | S |
CA1174 | 2 | 1906-03-16 | S |
DWR's own records for this structure: net amounts · transactions & adjudication history · scanned decrees (search a case number there for the imaged document). On this site: the district's full legal picture →
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 1,181 AF. Its most recent year on record, 2024, came in at 1,079 AF — 91% of that, and 4th 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) |
|---|---|---|---|---|
| 2007 | 1,747 | 15th lowest of 15 · 148% of median | 174 | 8.0 |
| 2009 | 1,205 | 9th lowest of 15 · 102% of median | 148 | 6.2 |
| 2010 | 1,640 | 13th lowest of 15 · 139% of median | 151 | 10.6 |
| 2011 | 1,398 | 10th lowest of 15 · 118% of median | 157 | 4.8 |
| 2013 | 1,738 | 14th lowest of 15 · 147% of median | 171 | 5.8 |
| 2015 | 926 | 3rd lowest of 15 · 78% of median | 110 | 4.3 |
| 2016 | 1,152 | 6th lowest of 15 · 98% of median | 141 | 4.3 |
| 2017 | 1,578 | 12th lowest of 15 · 134% of median | 189 | 4.3 |
| 2018 | 1,133 | 5th lowest of 15 · 96% of median | 160 | 4.0 |
| 2019 | 758 | 1st lowest of 15 · 64% of median | 161 | 3.3 |
| 2020 | 1,180 | 7th lowest of 15 · 100% of median | 189 | 4.6 |
| 2021 | 1,507 | 11th lowest of 15 · 128% of median | 228 | 3.8 |
| 2022 | 899 | 2nd lowest of 15 · 76% of median | 207 | 3.4 |
| 2023 | 1,181 | 8th lowest of 15 · 100% of median | 188 | 4.3 |
| 2024 | 1,079 | 4th lowest of 15 · 91% of median | 156 | 3.9 |
Trends for this structure
Recorded use is falling over its last 15 recorded years (-29 AF/yr, Mann-Kendall p=0.048).
How good is our record of it?
Grade A (9/10 points) — the components below are the finding; the letter alone is not.
The rubric, component by component
| Check | State | Detail |
|---|---|---|
| identity | complete | name, type, and water source all on file |
| decreed rights | on file | 3 right(s), seniority decoded |
| diversion record | present | 12585 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | continuous | 79% of the irrigation seasons in 1950-2024 carry measured days |
| published-record stability | stable | no upstream revisions recorded against this structure |
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.