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BISON PARK RESERVOIR
Structure dossier · WDID 1203913 · 3 · EAST FORK WEST BEAVER CR · DWR record
Where this page's figures come from
Generated 2026-08-27 21:07 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 1901-06-07 — 371st most senior of the 1967 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: VICTOR RESERVOIR NO 2 (1897-08-14). Immediately behind: FLORENCE MUNI WELL NO 1 (1911-09-25).
Decreed rights (1)
| 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 |
|---|---|---|---|---|---|---|---|
| 22541.18785 | 1901-06-07 | 1954-03-13 | 1147.8 | 0.0 | A | MUNINDFIR | A-6 |
Recorded use (last 4 years on record)
In a median year this structure has a recorded diversion of 218 AF. Its most recent year on record, 2025, came in at 0 AF — 0% 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) |
|---|---|---|---|---|---|
| 2020 | 299 | 4th lowest of 4 · 137% of median | — | 88 | 2.5 |
| 2023 | 176 | 2nd lowest of 4 · 80% of median | 22 | 122 | 19.2 |
| 2024 | 261 | 3rd lowest of 4 · 120% of median | — | 306 | 6.0 |
| 2025 | 0 | 1st lowest of 4 · 0% of median | — | 1 | 0.0 |
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.