Hydrohistorian
← My Water · Print / save as PDF
KEYSTONE LAKE DITCH
Structure dossier · WDID 3600938 · 1 · SNAKE RIVER · DWR record
Where this page's figures come from
Generated 2026-08-28 02:10 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 1973-09-01 — 657th most senior of the 1247 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: LIFTSIDE WELL NO 1 25259 (1965-11-19). Immediately behind: KEYSTONE DITCH (MUNI) (1973-09-01).
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 |
|---|---|---|---|---|---|---|---|
| 47481.45169 | 1973-09-01 | 1980-12-31 | 10.0 | 0.0 | C | IRRMUNCOMRECFISDOM |
Legal record & documents
3 decreed actions on record across
1 court case:
80CW0563.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
80CW0563 | 3 | 1980-12-31 | 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 15 years on record)
In a median year this structure has a recorded diversion of 507 AF. Its most recent year on record, 2024, came in at 838 AF — 165% of that, and 11th 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) |
|---|---|---|---|---|
| 2005 | 734 | 9th lowest of 15 · 145% of median | 260 | 6.0 |
| 2006 | 340 | 3rd lowest of 15 · 67% of median | 104 | 4.4 |
| 2007 | 507 | 8th lowest of 15 · 100% of median | 122 | 3.4 |
| 2008 | 485 | 6th lowest of 15 · 96% of median | 164 | 5.3 |
| 2009 | 889 | 12th lowest of 15 · 175% of median | 304 | 3.6 |
| 2010 | 409 | 4th lowest of 15 · 81% of median | 131 | 3.5 |
| 2016 | 180 | 1st lowest of 15 · 36% of median | 61 | 2.0 |
| 2017 | 1,778 | 15th lowest of 15 · 351% of median | 304 | 5.6 |
| 2018 | 1,006 | 13th lowest of 15 · 198% of median | 199 | 3.4 |
| 2019 | 428 | 5th lowest of 15 · 84% of median | 50 | 7.4 |
| 2020 | 493 | 7th lowest of 15 · 97% of median | 157 | 5.6 |
| 2021 | 1,238 | 14th lowest of 15 · 244% of median | 333 | 5.3 |
| 2022 | 754 | 10th lowest of 15 · 149% of median | 365 | 3.8 |
| 2023 | 271 | 2nd lowest of 15 · 54% of median | 249 | 2.5 |
| 2024 | 838 | 11th lowest of 15 · 165% of median | 149 | 4.0 |
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 | 7012 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | continuous | 100% of the irrigation seasons in 1992-2024 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.