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SPERRY DITCH

Structure dossier · WDID 4001203 · 1 · SPRING CREEK · DWR record

Where this page's figures come from

Generated 2026-08-28 03:01 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 1948-01-15 — 1861st most senior of the 4661 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: DAVENPORT DITCH (1947-11-25). Immediately behind: HARRY WHITE RESERVOIR NO. 2 (1948-03-15).

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
35808.01948-01-151954-03-20 2.50.0 CIRR J297

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 226 AF. Its most recent year on record, 2024, came in at 186 AF — 82% of that, and 5th 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 256 13th lowest of 15 · 113% of median 125 1.4
2011 299 15th lowest of 15 · 132% of median 141 1.5
2012 143 3rd lowest of 15 · 63% of median 90 1.0
2013 181 4th lowest of 15 · 80% of median 99 1.3
2014 226 8th lowest of 15 · 100% of median 90 3.5
2015 255 12th lowest of 15 · 113% of median 113 1.8
2016 225 7th lowest of 15 · 100% of median 77 2.9
2017 277 14th lowest of 15 · 123% of median 128 1.8
2018 139 2nd lowest of 15 · 62% of median 97 1.0
2019 254 11th lowest of 15 · 112% of median 93 2.2
2020 252 10th lowest of 15 · 112% of median 127 2.7
2021 95 1st lowest of 15 · 42% of median 81 0.8
2022 233 9th lowest of 15 · 103% of median 92 2.2
2023 197 6th lowest of 15 · 87% of median 87 2.1
2024 186 5th lowest of 15 · 82% of median 101 1.5

How good is our record of it?

Grade B (8/10 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 6819 measured days; currency unknown (no data-coverage date to compare against)
record continuity patchy 59% of the irrigation seasons in 1970-2024 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.