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RED TOP VALLEY DITCH
Structure dossier · WDID 5100848 · 1 · COLORADO 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 (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 1901-11-10 — 137th most senior of the 2208 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: FISHER DITCH NO 2 (1901-06-17). Immediately behind: RED TOP VALLEY DITCH - STILLWATER CREEK (1901-11-10).
Decreed rights (2)
| 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 |
|---|---|---|---|---|---|---|---|
| 18941.0 | 1901-11-10 | 1906-08-11 | 150.0 | 0.0 | C | IRR | 122 |
| 55039.0 | 2000-09-09 | 2001-06-11 | 0.0 | 1.0 | C | STORECFISFIRSTK |
Legal record & documents
2 decreed actions on record across
2 court cases:
00CW0169, CA0112.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
00CW0169 | 1 | 2001-06-11 | S |
CA0112 | 1 | 1906-08-11 | O |
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 5,177 AF. Its most recent year on record, 2024, came in at 6,195 AF — 120% of that, and 12th 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) |
|---|---|---|---|---|
| 2010 | 7,523 | 13th lowest of 15 · 145% of median | 60 | 122.0 |
| 2011 | 1,622 | 1st lowest of 15 · 31% of median | 30 | 55.0 |
| 2012 | 7,777 | 14th lowest of 15 · 150% of median | 89 | 73.8 |
| 2013 | 5,192 | 9th lowest of 15 · 100% of median | 60 | 82.0 |
| 2014 | 2,531 | 2nd lowest of 15 · 49% of median | 29 | 66.0 |
| 2015 | 3,879 | 3rd lowest of 15 · 75% of median | 47 | 68.0 |
| 2016 | 5,031 | 7th lowest of 15 · 97% of median | 60 | 99.0 |
| 2017 | 9,150 | 15th lowest of 15 · 177% of median | 50 | 136.1 |
| 2018 | 5,636 | 11th lowest of 15 · 109% of median | 69 | 73.0 |
| 2019 | 4,460 | 5th lowest of 15 · 86% of median | 47 | 71.5 |
| 2020 | 4,326 | 4th lowest of 15 · 84% of median | 58 | 68.1 |
| 2021 | 5,329 | 10th lowest of 15 · 103% of median | 56 | 79.0 |
| 2022 | 5,177 | 8th lowest of 15 · 100% of median | 64 | 76.5 |
| 2023 | 4,545 | 6th lowest of 15 · 88% of median | 61 | 85.6 |
| 2024 | 6,195 | 12th lowest of 15 · 120% of median | 75 | 78.5 |
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 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 | 2 right(s), seniority decoded |
| diversion record | present | 2829 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | sparse | 27% of the irrigation seasons in 1975-2024 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.