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SEDALIA RESERVOIR
Structure dossier · WDID 0803035 · RESERVOIR · PLUM CREEK · DWR record
Where this page's figures come from
Generated 2026-08-28 02:52 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (0576005) — 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.
Current administration
● Junior rights called out — call at LITTLETON BOAT CHUTE NO 10 (SOUTH PLATTE RIVER, priority 1994-12-02).
● Fully called out — call at LAST CHANCE DITCH 2 (SOUTH PLATTE RIVER, priority 1863-12-30).
● Fully called out — call at NEVADA DITCH (SOUTH PLATTE RIVER, priority 1865-12-30).
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 1985-12-17 — 9374th most senior of the 21881 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: 0802486 (1985-12-17). Immediately behind: 0803085 (1985-12-17).
Decreed rights (6)
| 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 |
|---|---|---|---|---|---|---|---|
| 49659.0 | 1985-12-17 | 1985-12-31 | 0.0 | 0.0 | A | STOIRRMUNCOMINDFISFIRDOMSTKAUG | |
| 56542.0 | 2004-10-21 | 2004-12-31 | 0.0 | 0.0 | A | MUN | |
| 59169.5909 | 2011-10-13 | 2012-12-31 | 215.0 | 209.0 | A | MUN | |
| 59169.5909 | 2011-10-13 | 2012-12-31 | 2.89 | 0.11 | C | MUN | |
| 61358.0 | 2017-12-28 | 2017-12-31 | 0.0 | 610.0 | A | MUNRECFISAUGWLD | |
| 61358.0 | 2017-12-28 | 2017-12-31 | 0.0 | 40.0 | C | MUNRECFISAUGWLD |
Legal record & documents
7 decreed actions on record across
4 court cases:
17CW3211, 20CW3175, 05CW0270, 18CW3232.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
17CW3211 | 1 | 2017-12-31 | S |
20CW3175 | 1 | 2012-12-31 | S |
05CW0270 | 3 | 2012-12-31 | S |
18CW3232 | 2 | 2004-12-31 | 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 8 years on record)
In a median year this structure has a recorded diversion of 95 AF. Its most recent year on record, 2025, came in at 348 AF — 366% of that, and 5th lowest of the 5 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) |
|---|---|---|---|---|---|
| 2018 | — | no recorded volume | 69 | 0 | — |
| 2019 | 104 | 4th lowest of 5 · 110% of median | 198 | 37 | 3.4 |
| 2020 | — | no recorded volume | 239 | 0 | — |
| 2021 | — | no recorded volume | 226 | 0 | — |
| 2022 | 0 | 1st lowest of 5 · 0% of median | 401 | 61 | 0.0 |
| 2023 | 95 | 3rd lowest of 5 · 100% of median | 154 | 358 | 5.6 |
| 2024 | 34 | 2nd lowest of 5 · 36% of median | 0 | 263 | 4.1 |
| 2025 | 348 | 5th lowest of 5 · 366% of median | 188 | 304 | 7.7 |
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 | 6 right(s), seniority decoded |
| diversion record | present | 1023 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | patchy | 68% of the irrigation seasons in 2018-2025 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.