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LAUNE RESERVOIR
Structure dossier · WDID 4703742 · 3 · NORTH PLATTE RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 22:23 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (a1c9146) — 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 1908-10-02 — 642nd most senior of the 1262 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: RICHARD SPG NO 1 (1902-01-15). Immediately behind: THREE MILE RES (1909-07-22).
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 |
|---|---|---|---|---|---|---|---|
| 44559.21459 | 1908-10-02 | 1972-12-31 | 1590.63 | 0.0 | A | IRR | |
| 44559.44317 | 1971-05-03 | 1972-12-31 | 3008.07 | 0.0 | A | IRRRECFIS | |
| 50403.44327 | 1971-05-13 | 1988-12-31 | 4074.0 | 0.0 | A | RECFISSTKWLD |
Legal record & documents
4 decreed actions on record across
3 court cases:
88CW0192, W0412-72, 11CW0037.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
88CW0192 | 1 | 1988-12-31 | S |
W0412-72 | 2 | 1972-12-31 | S |
11CW0037 | 1 | 1972-12-31 | 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 6 years on record)
In a median year this structure has a recorded diversion of 434 AF. Its most recent year on record, 2019, came in at 835 AF — 193% of that, and 5th lowest of the 6 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) |
|---|---|---|---|---|---|
| 2008 | 310 | 3rd lowest of 6 · 72% of median | — | 35 | 6.3 |
| 2009 | 557 | 4th lowest of 6 · 128% of median | 557 | 39 | 7.8 |
| 2010 | 1,071 | 6th lowest of 6 · 247% of median | 1,071 | 39 | 15.0 |
| 2016 | 243 | 1st lowest of 6 · 56% of median | 1,061 | 26 | 5.0 |
| 2017 | 293 | 2nd lowest of 6 · 68% of median | — | 33 | 6.4 |
| 2019 | 835 | 5th lowest of 6 · 193% of median | — | 66 | 8.6 |
How good is our record of it?
Grade B (7/10 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 | 238 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | sparse | 10% of the irrigation seasons in 2008-2019 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.