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SOPHRONIA DAY DITCH
Structure dossier · WDID 5100893 · 1 · COLORADO RIVER · DWR record
Where this page's figures come from
Generated 2026-08-28 01:19 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 1891-06-03 — 110th 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: GASKILL DITCH (1891-06-01). Immediately behind: CROOKED DITCH (1891-10-31).
Decreed rights (5)
| 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 |
|---|---|---|---|---|---|---|---|
| 15129.0 | 1891-06-03 | 1906-08-11 | 10.0 | 0.0 | C | IRR | 92 |
| 20676.1473 | 1890-04-30 | 1911-08-03 | 5.0 | 0.0 | C | IRR | 186 |
| 21670.0 | 1909-05-01 | 1911-08-03 | 2.125 | 0.0 | C | IRR | 260 |
| 30870.2097 | 1907-06-01 | 1937-11-05 | 4.0 | 0.0 | C | IRR | 386 |
| 30870.21336 | 1908-06-01 | 1937-11-05 | 3.0 | 0.0 | C | IRR | 386 |
Legal record & documents
5 decreed actions on record across
4 court cases:
CA0657, CA0669, CA0183, CA0112.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
CA0657 | 2 | 1937-11-05 | S |
CA0669 | 1 | 1911-08-03 | S |
CA0183 | 1 | 1911-08-03 | 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 4,083 AF. Its most recent year on record, 2024, came in at 1,344 AF — 33% of that, and 1st 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 | 5,256 | 14th lowest of 15 · 129% of median | 118 | 28.3 |
| 2011 | 4,512 | 10th lowest of 15 · 110% of median | 101 | 25.6 |
| 2012 | 3,454 | 3rd lowest of 15 · 85% of median | 78 | 25.2 |
| 2013 | 6,375 | 15th lowest of 15 · 156% of median | 121 | 41.2 |
| 2014 | 4,880 | 12th lowest of 15 · 120% of median | 100 | 29.3 |
| 2015 | 4,078 | 7th lowest of 15 · 100% of median | 104 | 26.2 |
| 2016 | 3,937 | 6th lowest of 15 · 96% of median | 93 | 32.6 |
| 2017 | 3,673 | 5th lowest of 15 · 90% of median | 77 | 30.0 |
| 2018 | 4,947 | 13th lowest of 15 · 121% of median | 94 | 37.0 |
| 2019 | 4,083 | 8th lowest of 15 · 100% of median | 99 | 30.0 |
| 2020 | 4,581 | 11th lowest of 15 · 112% of median | 98 | 35.0 |
| 2021 | 4,222 | 9th lowest of 15 · 103% of median | 103 | 32.0 |
| 2022 | 3,485 | 4th lowest of 15 · 85% of median | 89 | 31.0 |
| 2023 | 3,126 | 2nd lowest of 15 · 77% of median | 69 | 34.0 |
| 2024 | 1,344 | 1st lowest of 15 · 33% of median | 119 | 13.3 |
Trends for this structure
Recorded use is falling over its last 15 recorded years (-148 AF/yr, Mann-Kendall p=0.029).
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 | 5 right(s), seniority decoded |
| diversion record | present | 4217 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | sparse | 40% 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.