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DOLORES WATER DIVERSION
Structure dossier · WDID 7100615 · 1 · DOLORES RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 23:22 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (f6d7fdc) — 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 1879-05-31 — 2nd most senior of the 279 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: ITALIAN DITCH (1879-05-31). Immediately behind: DOLORES TUNNEL (1879-05-31).
Decreed rights (3)
| 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 |
|---|---|---|---|---|---|---|---|
| 10743.0 | 1879-05-31 | 1892-02-01 | 1.0 | 0.0 | C | MUNDOMOTH | D-1 |
| 11414.0 | 1881-04-01 | 1892-02-01 | 0.33 | 0.0 | C | IRRMUN | D-6 |
| 11444.0 | 1881-05-01 | 1892-02-01 | 1.0 | 0.0 | C | IRR | D-8 |
Legal record & documents
3 decreed actions on record across
3 court cases:
W1805, W1798, 93CW0022.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
W1805 | 1 | 1892-02-01 | O |
W1798 | 1 | 1892-02-01 | O |
93CW0022 | 1 | 1892-02-01 | 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 196 AF. Its most recent year on record, 2010, came in at 50 AF — 26% of that, and 3rd 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) |
|---|---|---|---|---|
| 1989 | 312 | 15th lowest of 15 · 159% of median | 247 | 0.9 |
| 1993 | 17 | 2nd lowest of 15 · 9% of median | 61 | 0.2 |
| 1994 | 192 | 7th lowest of 15 · 98% of median | 365 | 0.5 |
| 1995 | 185 | 6th lowest of 15 · 94% of median | 365 | 0.5 |
| 1996 | 203 | 10th lowest of 15 · 104% of median | 366 | 0.5 |
| 1997 | 203 | 10th lowest of 15 · 104% of median | 365 | 0.5 |
| 1998 | 219 | 12th lowest of 15 · 112% of median | 365 | 1.0 |
| 1999 | 197 | 9th lowest of 15 · 100% of median | 365 | 0.9 |
| 2000 | 255 | 14th lowest of 15 · 130% of median | 366 | 1.1 |
| 2001 | 239 | 13th lowest of 15 · 122% of median | 365 | 0.9 |
| 2002 | 196 | 8th lowest of 15 · 100% of median | 345 | 0.9 |
| 2003 | 105 | 5th lowest of 15 · 54% of median | 298 | 0.9 |
| 2004 | 70 | 4th lowest of 15 · 36% of median | 173 | 0.6 |
| 2009 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 2010 | 50 | 3rd lowest of 15 · 26% of median | 146 | 0.9 |
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 | 3 right(s), seniority decoded |
| diversion record | present | 4439 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | sparse | 39% of the irrigation seasons in 1957-2010 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.