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DOTSON DITCH NO 1
Structure dossier · WDID 1500507 · 1 · SAINT CHARLES RIVER · DWR record
Where this page's figures come from
Generated 2026-08-28 00:42 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 1865-05-31 — 26th most senior of the 704 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: DUNBAUGH DITCH (1865-04-30). Immediately behind: GREENAPPLE DITCH (1865-12-31).
Decreed rights (4)
| 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 |
|---|---|---|---|---|---|---|---|
| 5630.0 | 1865-05-31 | 1893-06-26 | 3.0 | 0.0 | C | IRR | 17 |
| 5965.0 | 1866-05-01 | 1893-06-26 | 3.0 | 0.0 | C | IRR | 24 |
| 6696.0 | 1868-05-01 | 1893-06-26 | 8.0 | 0.0 | C | IRR | 45 |
| 11688.0 | 1881-12-31 | 1893-06-26 | 12.0 | 0.0 | C | IRR | 138 |
Legal record & documents
4 decreed actions on record across
1 court case:
CA2756.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
CA2756 | 4 | 1893-06-26 | O |
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 3,164 AF. Its most recent year on record, 2025, came in at 4,130 AF — 130% of that, and 15th 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 | 1,636 | 3rd lowest of 15 · 52% of median | 193 | 17.2 |
| 2012 | 3,164 | 8th lowest of 15 · 100% of median | 295 | 24.7 |
| 2013 | 2,684 | 6th lowest of 15 · 85% of median | 285 | 19.4 |
| 2014 | 3,758 | 13th lowest of 15 · 119% of median | 239 | 20.5 |
| 2015 | 2,342 | 5th lowest of 15 · 74% of median | 267 | 21.6 |
| 2016 | 3,208 | 9th lowest of 15 · 101% of median | 334 | 21.3 |
| 2017 | 3,009 | 7th lowest of 15 · 95% of median | 240 | 18.1 |
| 2018 | 1,155 | 2nd lowest of 15 · 36% of median | 187 | 11.2 |
| 2019 | 1,949 | 4th lowest of 15 · 62% of median | 206 | 12.8 |
| 2020 | 1,044 | 1st lowest of 15 · 33% of median | 210 | 11.2 |
| 2021 | 3,282 | 10th lowest of 15 · 104% of median | 243 | 20.0 |
| 2022 | 3,457 | 12th lowest of 15 · 109% of median | 365 | 15.2 |
| 2023 | 3,285 | 11th lowest of 15 · 104% of median | 365 | 22.5 |
| 2024 | 3,945 | 14th lowest of 15 · 125% of median | 366 | 26.0 |
| 2025 | 4,130 | 15th lowest of 15 · 130% of median | 304 | 25.4 |
Trends for this structure
Recorded use shows no clear trend over its last 15 recorded years — which is itself worth knowing.
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 | 4 right(s), seniority decoded |
| diversion record | present | 23576 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | continuous | 97% of the irrigation seasons in 1912-2025 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.