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RIDGWAY RESERVOIR TRI CT
Structure dossier · WDID 6803675 · 3 · UNCOMPAHGRE RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 22:22 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 1956-11-16 — 312th most senior of the 1293 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: RAMS HORN RESERVOIR (1956-11-16). Immediately behind: HARRIS RESERVOIR NO 2 (1957-05-29).
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 |
|---|---|---|---|---|---|---|---|
| 39036.0 | 1956-11-16 | 1961-04-14 | 84602.0 | 0.0 | A | IRRMUNINDRECFISDOMSTKAUGPWROTH | |
| 53325.39026 | 1956-11-06 | 1996-12-31 | 84602.0 | 0.0 | A | IRRMUNCOMINDRECFISFIRSTKPWROTH | |
| 57708.51654 | 1991-06-04 | 2008-12-31 | 133.0 | 67.0 | C | MUN | |
| 58074.56918 | 2005-11-01 | 2009-12-31 | 39228.0 | 0.0 | A | RECFIS |
Legal record & documents
30 decreed actions on record across
24 court cases:
09CW0122, 17CW3039, 08CW0150, 96CW0140, 17CW3034, 15CW3094, 10CW0088, 04CW0011, CA2440, 98CW0136 and 14 more below.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
09CW0122 | 1 | 2009-12-31 | S |
17CW3039 | 1 | 2008-12-31 | S |
08CW0150 | 2 | 2008-12-31 | S |
96CW0140 | 1 | 1996-12-31 | S |
17CW3034 | 2 | 1996-12-31 | S |
15CW3094 | 1 | 1996-12-31 | S |
10CW0088 | 2 | 1996-12-31 | S |
04CW0011 | 3 | 1996-12-31 | S |
CA2440 | 1 | 1961-04-14 | S |
98CW0136 | 1 | 1961-04-14 | S |
94CW0052 | 2 | 1961-04-14 | S |
93CW0035 | 1 | 1961-04-14 | S |
92CW0179 | 1 | 1961-04-14 | S |
83CW0060 | 1 | 1961-04-14 | S |
82CW0243 | 1 | 1961-04-14 | S |
13CW3041 | 1 | 1961-04-14 | S |
10CW0197 | 1 | 1961-04-14 | S |
08CW0091 | 1 | 1961-04-14 | S |
06CW0227 | 1 | 1961-04-14 | S |
06CW0027 | 1 | 1961-04-14 | S |
04CW0186 | 1 | 1961-04-14 | S |
03CW0259 | 1 | 1961-04-14 | S |
02CW0299 | 1 | 1961-04-14 | S |
02CW0193 | 1 | 1961-04-14 | 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 35,364 AF. Its most recent year on record, 2025, came in at 35,364 AF — 100% of that, and 8th lowest of the 15 years with a recorded volume.
This structure records both diversions and reservoir releases — they are separate water movements and are accounted separately below.
| 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 | Released (AF) | Days recorded | Peak (cfs) |
|---|---|---|---|---|---|
| 2011 | 49,181 | 12th lowest of 15 · 139% of median | 42,770 | 365 | 642.1 |
| 2012 | 85,985 | 13th lowest of 15 · 243% of median | 23,462 | 366 | 361.0 |
| 2013 | 106,379 | 14th lowest of 15 · 301% of median | 10,345 | 365 | 538.0 |
| 2014 | 150,091 | 15th lowest of 15 · 424% of median | 33,972 | 365 | 1045.0 |
| 2015 | 19,543 | 2nd lowest of 15 · 55% of median | 25,713 | 365 | 455.0 |
| 2016 | 33,636 | 7th lowest of 15 · 95% of median | 30,233 | 366 | 667.0 |
| 2017 | 29,584 | 5th lowest of 15 · 84% of median | 27,157 | 365 | 535.0 |
| 2018 | 12,805 | 1st lowest of 15 · 36% of median | 21,356 | 365 | 208.6 |
| 2019 | 45,776 | 11th lowest of 15 · 129% of median | 22,843 | 365 | 475.5 |
| 2020 | 21,627 | 3rd lowest of 15 · 61% of median | 27,854 | 366 | 485.6 |
| 2021 | 33,635 | 6th lowest of 15 · 95% of median | 17,744 | 365 | 615.3 |
| 2022 | 27,174 | 4th lowest of 15 · 77% of median | 19,953 | 365 | 388.2 |
| 2023 | 40,905 | 10th lowest of 15 · 116% of median | 38,146 | 365 | 539.6 |
| 2024 | 38,880 | 9th lowest of 15 · 110% of median | 26,636 | 366 | 763.4 |
| 2025 | 35,364 | 8th lowest of 15 · 100% of median | 35,937 | 304 | 639.2 |
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 A (9/10 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 | 11014 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | continuous | 100% of the irrigation seasons in 1993-2025 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.