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MAIN RESERVOIR
Structure dossier · WDID 0803405 · RESERVOIR · CLEAR CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 21:49 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (0576005) — 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.
Current administration
● Junior rights called out — call at CLEAR CR PLATTE RIVER D (CLEAR CREEK, priority 1861-11-01).
● Junior rights called out — call at LAST CHANCE DITCH 2 (SOUTH PLATTE RIVER, priority 1863-12-30).
● Junior rights called out — call at NEVADA DITCH (SOUTH PLATTE RIVER, priority 1865-12-30).
● Junior rights called out — call at FISHER DITCH (CLEAR CREEK, priority 1861-06-28).
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 1860-05-15 — 4th most senior of the 21881 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: WALTER S WELTON RES (1860-05-15). Immediately behind: 0803406 (1860-05-15).
Decreed rights (16)
| 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 |
|---|---|---|---|---|---|---|---|
| 3788.0 | 1860-05-15 | 1884-10-04 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFISDOMAUGALL | |
| 3792.0 | 1860-05-19 | 1884-10-04 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFISDOMAUGALL | |
| 3804.0 | 1860-05-31 | 1884-10-04 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFISDOMAUGALL | |
| 3818.0 | 1860-06-14 | 1884-10-04 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFISDOMAUGALL | |
| 4151.0 | 1861-05-13 | 1884-10-04 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFISDOMAUGALL | |
| 4152.0 | 1861-05-14 | 1884-10-04 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFISDOMAUGALL | |
| 4171.0 | 1861-06-02 | 1884-10-04 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFISDOMAUGALL | |
| 4180.0 | 1861-06-11 | 1884-10-04 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFISDOMAUGALL | |
| 4535.0 | 1862-06-01 | 1884-10-04 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFISDOMAUGALL | |
| 5615.0 | 1865-05-16 | 1884-10-04 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFISDOMAUGALL | |
| 7712.0 | 1871-02-11 | 1884-10-04 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFISDOMAUGALL | |
| 9121.0 | 1874-12-21 | 1884-10-04 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFISDOMAUGALL | |
| 12136.0 | 1883-03-24 | 1884-10-04 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFISDOMAUGALL | |
| 16718.13966 | 1888-03-27 | 1936-05-13 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFISDOMAUGALL | |
| 18415.0 | 1900-06-02 | 1936-05-13 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFISDOMAUGALL | |
| 18659.0 | 1901-02-01 | 1936-05-13 | 606.51 | 0.0 | A | STOIRRMUNCOMINDRECFISFIRDOMAUG |
Legal record & documents
No court-case numbers are attached to the cached rights.
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 158 AF. Its most recent year on record, 2023, came in at 124 AF — 78% of that, and 1st lowest of the 5 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) |
|---|---|---|---|---|---|
| 2019 | 189 | 4th lowest of 5 · 120% of median | — | 33 | 4.5 |
| 2020 | 158 | 3rd lowest of 5 · 100% of median | — | 32 | 4.0 |
| 2021 | 124 | 1st lowest of 5 · 78% of median | 326 | 102 | 3.2 |
| 2022 | 213 | 5th lowest of 5 · 135% of median | 402 | 365 | 5.6 |
| 2023 | 124 | 1st lowest of 5 · 78% of median | 697 | 304 | 5.3 |
| 2024 | — | no recorded volume | 125 | 0 | — |
How good is our record of it?
Grade B (8/10 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 | 16 right(s), seniority decoded |
| diversion record | present | 836 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | patchy | 72% of the irrigation seasons in 2019-2024 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.