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SILVER JACK RESERVOIR
Structure dossier · WDID 6203548 · 3 · CIMARRON RIVER · DWR record
Where this page's figures come from
Generated 2026-08-28 00:08 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 1955-07-01 — 595th most senior of the 1980 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: WHITTINGHAM NO 1 DITCH N BR (1954-08-16). Immediately behind: SODERQUIST RES (1956-04-01).
Decreed rights (1)
| 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 |
|---|---|---|---|---|---|---|---|
| 38532.0 | 1955-07-01 | 1960-03-30 | 14000.0 | 0.0 | A | IRRMUNOTH | 435 |
Legal record & documents
3 decreed actions on record across
2 court cases:
W2514, CA6981.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
W2514 | 2 | 1960-03-30 | S |
CA6981 | 1 | 1960-03-30 | 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 12,528 AF. Its most recent year on record, 2025, came in at 13,360 AF — 107% of that, and 11th 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) |
|---|---|---|---|---|---|
| 2011 | 12,635 | 9th lowest of 15 · 101% of median | 10,020 | 365 | 460.0 |
| 2012 | 11,341 | 4th lowest of 15 · 90% of median | 11,479 | 366 | 201.8 |
| 2013 | 15,702 | 15th lowest of 15 · 125% of median | 7,615 | 365 | 364.5 |
| 2014 | 9,450 | 2nd lowest of 15 · 75% of median | 8,523 | 308 | 863.6 |
| 2015 | 8,221 | 1st lowest of 15 · 66% of median | 10,419 | 308 | 191.6 |
| 2016 | 10,606 | 3rd lowest of 15 · 85% of median | 11,948 | 366 | 256.9 |
| 2017 | 11,947 | 6th lowest of 15 · 95% of median | 10,782 | 365 | 256.0 |
| 2018 | 11,731 | 5th lowest of 15 · 94% of median | 12,554 | 365 | 272.5 |
| 2019 | 14,666 | 14th lowest of 15 · 117% of median | 13,792 | 365 | 486.7 |
| 2020 | 12,471 | 7th lowest of 15 · 100% of median | 12,321 | 366 | 282.0 |
| 2021 | 13,745 | 12th lowest of 15 · 110% of median | 12,456 | 365 | 353.0 |
| 2022 | 12,733 | 10th lowest of 15 · 102% of median | 11,606 | 365 | 566.7 |
| 2023 | 12,528 | 8th lowest of 15 · 100% of median | 13,117 | 365 | 339.0 |
| 2024 | 14,035 | 13th lowest of 15 · 112% of median | 12,255 | 366 | 291.0 |
| 2025 | 13,360 | 11th lowest of 15 · 107% of median | 12,662 | 304 | 280.0 |
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 | 1 right(s), seniority decoded |
| diversion record | present | 7693 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | continuous | 76% of the irrigation seasons in 1978-2025 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.