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CHESTER DITCH

Structure dossier · WDID 5100580 · 1 · STILLWATER CREEK · DWR record

Where this page's figures come from

Generated 2026-08-28 02:15 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 1915-10-15 — 312th 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: DENNIS DITCH (1915-09-25). Immediately behind: TROUTT RESERVOIR (1916-06-23).

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
24028.01915-10-151917-08-11 2.00.0 CIRR 334

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 68 AF. Its most recent year on record, 2024, came in at 23 AF — 34% of that, and 2nd 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 84 13th lowest of 15 · 124% of median 58 1.0
2010 68 8th lowest of 15 · 100% of median 80 0.5
2011 83 12th lowest of 15 · 122% of median 63 0.8
2012 61 7th lowest of 15 · 90% of median 83 0.6
2013 22 1st lowest of 15 · 32% of median 30 0.4
2014 45 5th lowest of 15 · 66% of median 96 0.3
2015 57 6th lowest of 15 · 84% of median 94 0.5
2016 27 3rd lowest of 15 · 40% of median 49 0.5
2017 79 11th lowest of 15 · 116% of median 52 1.5
2019 68 8th lowest of 15 · 100% of median 40 1.0
2020 84 13th lowest of 15 · 124% of median 75 0.8
2021 91 15th lowest of 15 · 134% of median 93 1.4
2022 74 10th lowest of 15 · 109% of median 89 0.7
2023 27 3rd lowest of 15 · 40% of median 43 0.8
2024 23 2nd lowest of 15 · 34% of median 23 0.7

How good is our record of it?

Grade B (7/10 points) — the components below are the finding; the letter alone is not.

The rubric, component by component
CheckStateDetail
identity complete name, type, and water source all on file
decreed rights on file 1 right(s), seniority decoded
diversion record present 2441 measured days; currency unknown (no data-coverage date to compare against)
record continuity sparse 23% of the irrigation seasons in 1975-2024 carry measured days
published-record stability stable no upstream revisions recorded against this structure

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.