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LON HAGLER RES

Structure dossier · WDID 0404136 · 3 · BIG THOMPSON RIVER · DWR record

Where this page's figures come from

Generated 2026-08-27 19:17 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 in line

Priority 1959-07-07543rd 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: WILSON SPRING (1955-12-31). Immediately behind: LEONARD SPRING 1 (1960-01-01).

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
43829.399991959-07-071970-12-31 5307.810.0 ASTOIRRMUNAUGOTH
47481.473491979-08-211980-12-31 1778.03529.81 ASTOIRRMUNAUGOTH

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 1,661 AF. Its most recent year on record, 2024, came in at 372 AF — 22% of that, and 1st 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 2,597 15th lowest of 15 · 156% of median 40 46.0
2011 2,489 12th lowest of 15 · 150% of median 31 105.0
2012 2,529 14th lowest of 15 · 152% of median 39 120.0
2013 978 5th lowest of 15 · 59% of median 15 110.0
2014 477 2nd lowest of 15 · 29% of median 7 50.0
2015 1,212 7th lowest of 15 · 73% of median 35 32.3
2016 2,497 13th lowest of 15 · 150% of median 33 93.0
2017 1,150 6th lowest of 15 · 69% of median 55 20.0
2018 1,711 9th lowest of 15 · 103% of median 29 56.8
2019 2,345 10th lowest of 15 · 141% of median 45 81.6
2020 775 3rd lowest of 15 · 47% of median 40 24.6
2021 2,417 11th lowest of 15 · 146% of median 55 120.8
2022 780 4th lowest of 15 · 47% of median 35 19.9
2023 1,661 8th lowest of 15 · 100% of median 11 110.0
2024 372 1st lowest of 15 · 22% of median 28 17.1

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.