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WEST DITCH

Structure dossier · WDID 3200687 · 1 · NARRAGUINNEP CANYON · DWR record

Where this page's figures come from

Generated 2026-08-27 19:52 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (f6d7fdc) — every figure regenerates from this named code version and data image.

Where it sits in line

Priority 1940-12-31 — 315th most senior of the 638 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: BRANSON NO 1 DITCH (1927-12-31). Immediately behind: ZISMAN SPRING NO 1 (1951-04-30).

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
45290.332371940-12-311974-12-31 0.250.0 CIRRSTK

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 28 AF. Its most recent year on record, 2025, came in at 20 AF — 71% of that, and 3rd 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)
2011 17 2nd lowest of 15 · 61% of median 83 0.2
2012 78 15th lowest of 15 · 279% of median 137 0.5
2013 50 13th lowest of 15 · 179% of median 82 0.4
2014 26 7th lowest of 15 · 93% of median 93 0.3
2015 61 14th lowest of 15 · 218% of median 164 0.3
2016 44 12th lowest of 15 · 157% of median 137 0.3
2017 28 8th lowest of 15 · 100% of median 111 0.2
2018 23 4th lowest of 15 · 82% of median 93 0.2
2019 30 9th lowest of 15 · 107% of median 120 0.2
2020 25 6th lowest of 15 · 89% of median 84 0.2
2021 8 1st lowest of 15 · 29% of median 43 0.2
2022 24 5th lowest of 15 · 86% of median 98 0.2
2023 34 10th lowest of 15 · 121% of median 121 0.2
2024 35 11th lowest of 15 · 125% of median 123 0.2
2025 20 3rd lowest of 15 · 71% of median 64 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.