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Structure dossier · WDID 6000717 · 1 · SAN MIGUEL 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 1896-07-01 — 130th most senior of the 2893 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: DOING DITCH (1896-07-01). Immediately behind: REED CHATFIELD DITCH (1896-07-01).
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 |
|---|---|---|---|---|---|---|---|
| 16984.0 | 1896-07-01 | 1911-06-03 | 0.0 | 0.0 | C | IRR | 76 |
| 19266.0 | 1902-10-01 | 1911-06-03 | 0.0 | 0.0 | C | IRR | 104 |
| 25826.24289 | 1916-07-02 | 1929-02-26 | 2.76 | 0.0 | C | IRR | 192 |
| 30771.0 | 1934-04-01 | 1939-11-01 | 0.0 | 0.0 | C | IRR | 329 |
| 31490.0 | 1936-03-20 | 1939-11-01 | 1.89 | 0.0 | C | IRR | 343 |
Legal record & documents
8 decreed actions on record across
5 court cases:
CA7945, CA4641, 02CW0233, W0233, CA3785.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
CA7945 | 2 | 1939-11-01 | S |
CA4641 | 1 | 1939-11-01 | S |
02CW0233 | 3 | 1939-11-01 | O, S |
W0233 | 1 | 1929-02-26 | S |
CA3785 | 1 | 1929-02-26 | 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 444 AF. Its most recent year on record, 2024, came in at 383 AF — 86% of that, and 3rd lowest of the 6 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) |
|---|---|---|---|---|
| 1974 | 957 | 6th lowest of 6 · 215% of median | 155 | 4.5 |
| 1975 | 506 | 4th lowest of 6 · 114% of median | 128 | 3.5 |
| 1988 | 75 | 2nd lowest of 6 · 17% of median | 21 | 2.0 |
| 1989 | 714 | 5th lowest of 6 · 161% of median | 181 | 2.0 |
| 2000 | 0 | 1st lowest of 6 · 0% of median | 8 | 0.0 |
| 2024 | 383 | 3rd lowest of 6 · 86% of median | 106 | 2.0 |
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 | 599 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | sparse | 6% of the irrigation seasons in 1974-2024 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.