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HARTSHORN DITCH

Structure dossier · WDID 5100708 · 1 · LITTLE CABIN CREEK · 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 1900-09-15 — 132nd most senior of the 2208 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: DIAMOND BAR TEE NO 2 DITCH (1900-09-15). Immediately behind: BIG SIX DITCH (1900-10-01).

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
18520.01900-09-151906-08-11 2.50.0 CIRRAUG 115

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 139 AF. Its most recent year on record, 2024, came in at 130 AF — 94% of that, and 7th 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)
2009 212 14th lowest of 15 · 152% of median 79 1.6
2010 139 8th lowest of 15 · 100% of median 49 1.6
2011 155 12th lowest of 15 · 112% of median 53 1.5
2012 55 1st lowest of 15 · 40% of median 32 1.2
2013 100 5th lowest of 15 · 72% of median 31 2.3
2014 139 8th lowest of 15 · 100% of median 51 1.8
2015 106 6th lowest of 15 · 76% of median 37 1.6
2016 147 11th lowest of 15 · 106% of median 60 2.7
2017 179 13th lowest of 15 · 129% of median 71 1.8
2018 139 8th lowest of 15 · 100% of median 49 1.8
2019 262 15th lowest of 15 · 188% of median 143 1.8
2020 74 3rd lowest of 15 · 53% of median 56 0.8
2021 57 2nd lowest of 15 · 41% of median 75 0.7
2022 93 4th lowest of 15 · 67% of median 109 0.5
2024 130 7th lowest of 15 · 94% of median 58 3.0

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.