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OLESON DITCH
Structure dossier · WDID 3700741 · 1 · BRUSH CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 22:16 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 1889-08-06 — 189th 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: BEN NELSON DITCH (1889-06-20). Immediately behind: PETER NELSON DITCH (1889-09-10).
Decreed rights (7)
| 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 |
|---|---|---|---|---|---|---|---|
| 16251.14463 | 1889-08-06 | 1901-03-05 | 0.0 | 0.0 | C | IRR | 154 |
| 16251.1531 | 1891-12-01 | 1901-03-05 | 1.2 | 0.0 | C | IRRAUG | 161 |
| 16587.0 | 1895-05-31 | 1901-03-05 | 0.74 | 0.0 | C | IRRAUG | 170 |
| 22435.22238 | 1910-11-20 | 1911-11-13 | 0.0 | 0.0 | C | IRR | 297 |
| 30894.22461 | 1911-07-01 | 1936-10-03 | 0.0 | 0.0 | C | IRR | 414 |
| 30894.26906 | 1923-09-01 | 1936-10-03 | 0.0 | 0.0 | C | IRR | 455III, 45 |
| 38753.38148 | 1954-06-12 | 1958-07-23 | 0.0 | 0.0 | C | IRR | 539 |
Legal record & documents
15 decreed actions on record across
4 court cases:
95CW0208, CA0963, 05CW0282, CA0385.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
95CW0208 | 5 | 1958-07-23 | S |
CA0963 | 3 | 1936-10-03 | S |
05CW0282 | 5 | 1936-10-03 | S |
CA0385 | 2 | 1901-03-05 | 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 589 AF. Its most recent year on record, 2024, came in at 589 AF — 100% of that, and 7th lowest of the 15 years with a recorded volume.
This structure records both diversions and reservoir releases — they are separate water movements and are accounted separately below.
| 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 | Released (AF) | Days recorded | Peak (cfs) |
|---|---|---|---|---|---|
| 2001 | 330 | 2nd lowest of 15 · 56% of median | — | 156 | 1.8 |
| 2002 | 350 | 3rd lowest of 15 · 59% of median | — | 156 | 1.6 |
| 2003 | 429 | 6th lowest of 15 · 73% of median | — | 155 | 1.6 |
| 2004 | 420 | 4th lowest of 15 · 71% of median | — | 142 | 1.5 |
| 2005 | 422 | 5th lowest of 15 · 72% of median | — | 143 | 1.5 |
| 2006 | 0 | 1st lowest of 15 · 0% of median | — | 1 | 0.0 |
| 2016 | 820 | 15th lowest of 15 · 139% of median | 820 | 214 | 1.9 |
| 2017 | 589 | 7th lowest of 15 · 100% of median | 589 | 215 | 1.9 |
| 2018 | 589 | 7th lowest of 15 · 100% of median | 589 | 304 | 1.9 |
| 2019 | 708 | 14th lowest of 15 · 120% of median | 708 | 240 | 1.9 |
| 2020 | 589 | 7th lowest of 15 · 100% of median | 589 | 354 | 1.9 |
| 2021 | 589 | 7th lowest of 15 · 100% of median | 589 | 365 | 1.9 |
| 2022 | 589 | 7th lowest of 15 · 100% of median | 589 | 365 | 1.9 |
| 2023 | 589 | 7th lowest of 15 · 100% of median | 589 | 365 | 1.9 |
| 2024 | 589 | 7th lowest of 15 · 100% of median | 589 | 305 | 1.9 |
Trends for this structure
Recorded use is rising over its last 15 recorded years (+10 AF/yr, Mann-Kendall p=0.024).
How good is our record of it?
Grade B (8/10 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 | 7 right(s), seniority decoded |
| diversion record | present | 6729 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | patchy | 43% of the irrigation seasons in 1951-2024 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.