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JOHN COLLOM AND SPRING CREEK DITCH

Structure dossier · WDID 4400859 · 1 · GOOD SPRING CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 23:44 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (a1c9146) — 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 1883-03-207th most senior of the 3562 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: ELK HORN DITCH (1883-03-20). Immediately behind: HARPER DITCH 1 (1883-06-01).

Decreed rights (2)

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
12132.01883-03-201894-09-22 1.60.0 CIRR 6
13695.01887-06-301894-09-22 0.710.0 CIRR 28, 29

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 178 AF. Its most recent year on record, 2025, came in at 46 AF — 26% 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)
2010 219 11th lowest of 15 · 123% of median 53 4.0
2011 196 9th lowest of 15 · 110% of median 40 3.6
2012 130 5th lowest of 15 · 73% of median 89 1.5
2013 141 6th lowest of 15 · 79% of median 76 3.6
2014 284 14th lowest of 15 · 160% of median 57 3.2
2015 216 10th lowest of 15 · 121% of median 57 2.8
2016 222 12th lowest of 15 · 125% of median 53 3.2
2017 167 7th lowest of 15 · 94% of median 59 1.6
2018 72 4th lowest of 15 · 40% of median 34 1.5
2019 544 15th lowest of 15 · 306% of median 73 4.6
2020 4 1st lowest of 15 · 2% of median 17 0.2
2022 42 2nd lowest of 15 · 24% of median 27 1.5
2023 239 13th lowest of 15 · 134% of median 50 4.3
2024 178 8th lowest of 15 · 100% of median 42 3.3
2025 46 3rd lowest of 15 · 26% of median 22 2.4

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 2 right(s), seniority decoded
diversion record present 1110 measured days; currency unknown (no data-coverage date to compare against)
record continuity sparse 25% of the irrigation seasons in 2004-2025 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.