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GRANBY NO 1 DITCH

Structure dossier · WDID 5100677 · 1 · KOVACS DRAW · DWR record

Where this page's figures come from

Generated 2026-08-27 20:29 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 1923-03-25 — 411th 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: GAINS NO 1 DITCH (1922-06-10). Immediately behind: HOME NO 2 DITCH (1923-05-01).

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
30870.267461923-03-251937-11-05 4.00.0 CIRR 399

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 46 AF. Its most recent year on record, 2024, came in at 44 AF — 96% 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)
2010 137 15th lowest of 15 · 298% of median 85 1.3
2011 33 5th lowest of 15 · 72% of median 58 0.5
2012 65 10th lowest of 15 · 141% of median 63 0.6
2013 89 12th lowest of 15 · 194% of median 117 0.5
2014 122 14th lowest of 15 · 265% of median 90 1.0
2015 76 11th lowest of 15 · 165% of median 87 0.8
2016 95 13th lowest of 15 · 206% of median 109 0.8
2017 41 6th lowest of 15 · 89% of median 93 0.3
2018 18 1st lowest of 15 · 39% of median 50 0.2
2019 49 9th lowest of 15 · 106% of median 67 1.0
2020 46 8th lowest of 15 · 100% of median 56 0.8
2021 28 4th lowest of 15 · 61% of median 59 0.5
2022 27 3rd lowest of 15 · 59% of median 54 0.5
2023 20 2nd lowest of 15 · 44% of median 30 0.5
2024 44 7th lowest of 15 · 96% of median 93 0.2

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.