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ROBBINS DITCH

Structure dossier · WDID 4001037 · 1 · ROATCAP CREEK · DWR record

Where this page's figures come from

Generated 2026-08-28 03:00 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 1893-03-25 — 1241st 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: DIAMOND JOE DITCH (1893-02-01). Immediately behind: LEONARD DITCH (1893-04-01).

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
21263.15791893-03-251914-06-23 3.10.0 CIRR A23

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 39 AF. Its most recent year on record, 2024, came in at 22 AF — 56% 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 31 7th lowest of 15 · 80% of median 71 0.5
2011 140 14th lowest of 15 · 359% of median 153 0.8
2012 17 2nd lowest of 15 · 44% of median 64 0.4
2013 58 12th lowest of 15 · 149% of median 99 0.6
2014 167 15th lowest of 15 · 428% of median 144 1.2
2015 47 11th lowest of 15 · 120% of median 97 0.5
2016 46 10th lowest of 15 · 118% of median 92 0.8
2017 18 3rd lowest of 15 · 46% of median 82 0.2
2018 39 8th lowest of 15 · 100% of median 100 1.0
2019 27 6th lowest of 15 · 69% of median 120 0.4
2020 19 4th lowest of 15 · 49% of median 85 0.2
2021 16 1st lowest of 15 · 41% of median 84 0.1
2022 43 9th lowest of 15 · 110% of median 173 0.4
2023 68 13th lowest of 15 · 174% of median 123 0.5
2024 22 5th lowest of 15 · 56% of median 109 0.2

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 3540 measured days; currency unknown (no data-coverage date to compare against)
record continuity sparse 30% 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.