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BIG CREEK RESERVOIR NO 4

Structure dossier · WDID 7203906 · 3 · BIG CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 21:14 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (a1c9146) — 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 1893-09-24 — 122nd most senior of the 2166 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: BIG CREEK RESERVOIR NO 3 (1893-09-01). Immediately behind: LAST RESORT DITCH (1894-05-01).

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. UnitsUsesWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on.Case
18749.159731893-09-241905-10-14 288.430.0 AIRR

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 122 AF. Its most recent year on record, 2024, came in at 125 AF — 102% of that, and 9th 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.

YearDiverted (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 recordReleased (AF)Days recordedPeak (cfs)
2010 34 1st lowest of 15 · 28% of median 17 61 0.4
2011 126 10th lowest of 15 · 103% of median 75 365 1.9
2012 122 8th lowest of 15 · 100% of median 61 366 0.7
2013 48 2nd lowest of 15 · 39% of median 113 343 0.6
2014 113 6th lowest of 15 · 93% of median 50 232 2.1
2015 100 5th lowest of 15 · 82% of median 84 365 3.2
2016 131 12th lowest of 15 · 107% of median 89 366 1.1
2017 138 13th lowest of 15 · 113% of median 35 365 3.3
2018 119 7th lowest of 15 · 98% of median 66 365 0.8
2019 93 4th lowest of 15 · 76% of median 56 365 0.4
2020 89 3rd lowest of 15 · 73% of median 107 366 0.9
2021 141 14th lowest of 15 · 116% of median 89 365 1.1
2022 160 15th lowest of 15 · 131% of median 107 365 1.4
2023 126 10th lowest of 15 · 103% of median 87 365 1.1
2024 125 9th lowest of 15 · 102% of median 88 305 1.6

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.