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LONE TREE RES

Structure dossier · WDID 0404137 · 3 · BIG THOMPSON RIVER · DWR record

Where this page's figures come from

Generated 2026-08-27 21:21 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 1881-02-01 — 41st most senior of the 1296 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: EAGLE DITCH (1877-03-01). Immediately behind: DONATH RESERVOIR (1883-02-24).

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
11355.01881-02-011883-05-28 9183.00.0 ASTOIRRMUNAUGOTH
29675.209841907-06-151939-11-14 9182.70.0 ASTOIRRMUNAUGOTH

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 6,111 AF. Its most recent year on record, 2024, came in at 2,675 AF — 44% of that, and 1st 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 4,617 5th lowest of 15 · 76% of median 25 78 87.6
2011 7,655 14th lowest of 15 · 125% of median 1,772 115 80.5
2012 3,614 4th lowest of 15 · 59% of median 2,019 95 53.0
2013 10,622 15th lowest of 15 · 174% of median 652 139 156.0
2014 4,872 6th lowest of 15 · 80% of median 1,976 42 160.6
2015 5,745 7th lowest of 15 · 94% of median 1,093 92 107.0
2016 6,519 10th lowest of 15 · 107% of median 834 147 80.7
2017 7,109 12th lowest of 15 · 116% of median 889 105 97.7
2018 7,193 13th lowest of 15 · 118% of median 1,514 108 78.0
2019 6,111 8th lowest of 15 · 100% of median 1,100 125 67.9
2020 3,238 2nd lowest of 15 · 53% of median 1,141 137 69.5
2021 6,786 11th lowest of 15 · 111% of median 1,014 190 79.2
2022 3,252 3rd lowest of 15 · 53% of median 1,037 173 41.2
2023 6,462 9th lowest of 15 · 106% of median 1,422 212 62.0
2024 2,675 1st lowest of 15 · 44% of median 1,519 73 84.0

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.