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70 RANCH STORAGE RESERVOIR
Structure dossier · WDID 0103028 · 3 · SOUTH PLATTE RIVER · DWR record
Where this page's figures come from
Generated 2026-08-28 01:00 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 1870-10-25 — 10th most senior of the 7705 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: CORNISH PLAINS RES (1870-10-25). Immediately behind: DEUEL SNYDER CANAL (1871-04-02).
Decreed rights (10)
| 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 |
|---|---|---|---|---|---|---|---|
| 7603.0 | 1870-10-25 | 1882-04-11 | 0.0 | 0.0 | C | MUNAUGCURRCH | |
| 7928.0 | 1871-09-15 | 1882-04-11 | 0.0 | 0.0 | C | MUNAUGCURRCH | |
| 9080.0 | 1874-11-10 | 1882-04-11 | 0.0 | 0.0 | C | MUNAUGCURRCH | |
| 10120.0 | 1877-09-15 | 1882-04-11 | 0.0 | 0.0 | C | MUNAUGCURRCH | |
| 45655.45437 | 1974-05-27 | 1975-12-31 | 0.0 | 0.0 | C | MUNAUGCURRCH | |
| 59899.0 | 2013-12-30 | 2013-12-31 | 0.0 | 12000.0 | A | MUNAUGCUREVPRCH | |
| 59899.0 | 2013-12-30 | 2013-12-31 | 0.0 | 200.0 | C | MUNAUGCUREVPRCH | |
| 60662.0 | 2016-02-01 | 2016-12-31 | 0.0 | 6000.0 | A | IRRMUNCOMINDDOMSTKAUG | |
| 60662.0 | 2016-02-01 | 2016-12-31 | 0.0 | 100.0 | C | IRRMUNCOMINDDOMSTKAUG | |
| 60750.0 | 2016-04-29 | 2016-12-31 | 0.0 | 0.0 | C | IRRMUNCOMINDDOMSTKAUG |
Legal record & documents
42 decreed actions on record across
5 court cases:
16CW3195, 16CW3059, 13CW3172, 13CW3171, 13CW3026.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
16CW3195 | 26 | 2016-12-31 | O, S |
16CW3059 | 2 | 2016-12-31 | S |
13CW3172 | 2 | 2013-12-31 | S |
13CW3171 | 2 | 2013-12-31 | S |
13CW3026 | 10 | 1975-12-31 | O, 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 3,233 AF. Its most recent year on record, 2024, came in at 979 AF — 30% of that, and 1st 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) |
|---|---|---|---|---|---|
| 2019 | 3,264 | 4th lowest of 6 · 101% of median | — | 114 | 37.4 |
| 2020 | 3,698 | 5th lowest of 6 · 114% of median | 1,234 | 203 | 25.1 |
| 2021 | 3,202 | 3rd lowest of 6 · 99% of median | 3,516 | 185 | 25.1 |
| 2022 | 1,659 | 2nd lowest of 6 · 51% of median | 1,255 | 129 | 17.2 |
| 2023 | 4,665 | 6th lowest of 6 · 144% of median | 435 | 262 | 67.0 |
| 2024 | 979 | 1st lowest of 6 · 30% of median | — | 305 | 28.9 |
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 | 10 right(s), seniority decoded |
| diversion record | present | 1198 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | continuous | 100% of the irrigation seasons in 2019-2024 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.