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GREGG DITCH

Structure dossier · WDID 4000679 · 1 · SURFACE CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 23:49 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 1898-05-01 — 1526th 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: KILLIAN HOUSE DITCH (1898-04-01). Immediately behind: LITTLE GIANT NO 1 RES (1898-07-01).

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
29260.176531898-05-011937-05-28 2.00.0 CIRR H28

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 58 AF. Its most recent year on record, 2024, came in at 19 AF — 33% 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 114 12th lowest of 15 · 197% of median 97 2.0
2011 217 15th lowest of 15 · 374% of median 137 1.8
2012 58 8th lowest of 15 · 100% of median 125 0.4
2013 15 4th lowest of 15 · 26% of median 25 0.8
2014 119 13th lowest of 15 · 205% of median 102 2.0
2015 51 7th lowest of 15 · 88% of median 95 0.7
2016 171 14th lowest of 15 · 295% of median 122 1.5
2017 88 9th lowest of 15 · 152% of median 124 1.2
2018 11 2nd lowest of 15 · 19% of median 32 0.3
2019 97 11th lowest of 15 · 167% of median 105 1.2
2020 14 3rd lowest of 15 · 24% of median 36 0.3
2021 7 1st lowest of 15 · 12% of median 21 0.2
2022 31 6th lowest of 15 · 53% of median 43 0.7
2023 93 10th lowest of 15 · 160% of median 91 1.3
2024 19 5th lowest of 15 · 33% of median 38 0.5

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 5532 measured days; currency unknown (no data-coverage date to compare against)
record continuity patchy 48% 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.