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OBRIEN AND BAUMGARTNER D

Structure dossier · WDID 4500711 · 1 · CACHE CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 20:28 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.

Which of its rights get called out?

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 1887-07-31 — 70th most senior of the 1378 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: COTTONWOOD FEEDER DITCH (1887-07-31). Immediately behind: RIPPLER DITCH (1887-09-05).

Decreed rights (2)

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
13726.01887-07-311888-05-05 2.830.0 CIRR 87
19808.137261887-07-311904-03-29 0.50.0 CDOMSTK DOM10

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 107 AF. Its most recent year on record, 2024, came in at 127 AF — 119% of that, and 10th lowest of the 15 years with a recorded volume.

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 recordDays recordedPeak (cfs)
2010 61 5th lowest of 15 · 57% of median 15 2.8
2011 184 13th lowest of 15 · 172% of median 49 3.2
2012 22 4th lowest of 15 · 21% of median 23 0.5
2013 93 6th lowest of 15 · 87% of median 22 2.8
2014 170 12th lowest of 15 · 159% of median 59 2.8
2015 107 8th lowest of 15 · 100% of median 38 2.7
2016 147 11th lowest of 15 · 137% of median 31 2.8
2017 109 9th lowest of 15 · 102% of median 75 2.8
2018 4 1st lowest of 15 · 4% of median 7 0.5
2019 222 15th lowest of 15 · 208% of median 43 2.8
2020 5 2nd lowest of 15 · 5% of median 7 1.5
2021 21 3rd lowest of 15 · 20% of median 8 2.8
2022 189 14th lowest of 15 · 177% of median 64 3.3
2023 98 7th lowest of 15 · 92% of median 33 2.8
2024 127 10th lowest of 15 · 119% of median 41 2.8

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.