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JOHN M RIPPY DITCH
Structure dossier · WDID 2900633 · 1 · SAN JUAN RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 23:30 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (a1c9146) — 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 1896-06-01 — 116th most senior of the 853 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: COCKRELL DITCH (1895-07-31). Immediately behind: FROGNAL IRRIGATION PUMP (1896-06-01).
Decreed rights (4)
| 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 |
|---|---|---|---|---|---|---|---|
| 16954.0 | 1896-06-01 | 1902-01-20 | 0.0 | 0.0 | C | IRR | #96 |
| 19012.17071 | 1896-09-26 | 1912-11-13 | 0.0 | 0.0 | C | IRR | #157 |
| 45077.0 | 1973-06-01 | 1973-12-31 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFISDOM | |
| 48930.0 | 1983-12-19 | 1983-12-31 | 0.0 | 0.0 | C | IRR |
Legal record & documents
8 decreed actions on record across
5 court cases:
13CW3006, 03CW0078, 04CW0013, W1061, CA0308.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
13CW3006 | 1 | 1983-12-31 | S |
03CW0078 | 4 | 1983-12-31 | O, S |
04CW0013 | 1 | 1973-12-31 | S |
W1061 | 1 | 1912-11-13 | S |
CA0308 | 1 | 1912-11-13 | 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 48 AF. Its most recent year on record, 2005, came in at 0 AF — 0% 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) |
|---|---|---|---|---|
| 1991 | 0 | 1st lowest of 15 · 0% of median | 15 | 0.0 |
| 1992 | 65 | 10th lowest of 15 · 135% of median | 17 | 5.4 |
| 1993 | 1,094 | 15th lowest of 15 · 2279% of median | 148 | 4.6 |
| 1994 | 55 | 9th lowest of 15 · 115% of median | 62 | 0.7 |
| 1995 | 166 | 13th lowest of 15 · 346% of median | 66 | 1.8 |
| 1996 | 976 | 14th lowest of 15 · 2033% of median | 123 | 5.7 |
| 1997 | 44 | 7th lowest of 15 · 92% of median | 27 | 1.7 |
| 1998 | 0 | 1st lowest of 15 · 0% of median | 15 | 0.0 |
| 1999 | 48 | 8th lowest of 15 · 100% of median | 24 | 2.0 |
| 2000 | 109 | 12th lowest of 15 · 227% of median | 40 | 1.8 |
| 2001 | 71 | 11th lowest of 15 · 148% of median | 22 | 1.8 |
| 2002 | 0 | 1st lowest of 15 · 0% of median | 13 | 0.0 |
| 2003 | 0 | 1st lowest of 15 · 0% of median | 17 | 0.0 |
| 2004 | 0 | 1st lowest of 15 · 0% of median | 18 | 0.0 |
| 2005 | 0 | 1st lowest of 15 · 0% of median | 15 | 0.0 |
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 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 | 4 right(s), seniority decoded |
| diversion record | present | 1527 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | sparse | 17% of the irrigation seasons in 1965-2005 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.