Hydrohistorian
← My Water · Print / save as PDF
EAST RESERVOIR
Structure dossier · WDID 0803406 · RESERVOIR · CLEAR CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 21:04 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 CANAL 3 DITCH (CACHE LA POUDRE RIVER, priority 1870-04-01).
● Junior rights called out — call at BIG T PLATTE R DITCH (BIG THOMPSON RIVER, priority 1865-11-18).
● Junior rights called out — call at B H EATON DITCH (CACHE LA POUDRE RIVER, priority 1864-06-09).
● 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).
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 — 5th 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: 0803405 (1860-05-15). Immediately behind: 0803407 (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 | 102.02 | 0.0 | A | STOIRRMUNCOMINDRECFISFIRDOMAUG |
Recorded use (last 4 years on record)
In a median year this structure has a recorded diversion of 284 AF. Its most recent year on record, 2024, came in at 83 AF — 29% of that, and 1st lowest of the 4 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) |
|---|---|---|---|---|---|
| 2021 | 275 | 2nd lowest of 4 · 97% of median | 242 | 147 | 7.4 |
| 2022 | 292 | 3rd lowest of 4 · 103% of median | 352 | 365 | 8.3 |
| 2023 | 532 | 4th lowest of 4 · 188% of median | 59 | 365 | 8.6 |
| 2024 | 83 | 1st lowest of 4 · 29% of median | 42 | 304 | 1.0 |
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.