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JOHN ROLLETTO NO 1 DITCH

Structure dossier · WDID 3900598 · 1 · MAIN ELK CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 21:19 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 1905-10-30 — 204th most senior of the 1758 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: DURAND SPRING & PIPELINE (1913-05-15). Immediately behind: CLINETOP DITCH ALT PT 1 (1908-04-15).

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
23352.203911905-10-301914-01-10 1.00.0 CIRR 174A
32959.259951921-03-041943-01-11 1.750.0 CIRR 220D

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 287 AF. Its most recent year on record, 2024, came in at 302 AF — 105% of that, and 9th 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)
1994 323 10th lowest of 15 · 112% of median 98 2.1
1995 366 12th lowest of 15 · 128% of median 134 2.1
1996 287 8th lowest of 15 · 100% of median 80 2.5
1997 369 13th lowest of 15 · 129% of median 114 2.5
1998 434 14th lowest of 15 · 151% of median 120 2.6
1999 437 15th lowest of 15 · 152% of median 77 2.9
2016 330 11th lowest of 15 · 115% of median 68 2.6
2017 47 2nd lowest of 15 · 16% of median 57 0.5
2018 97 6th lowest of 15 · 34% of median 68 1.5
2019 60 4th lowest of 15 · 21% of median 74 0.5
2020 52 3rd lowest of 15 · 18% of median 53 0.5
2021 23 1st lowest of 15 · 8% of median 24 0.5
2022 64 5th lowest of 15 · 22% of median 66 0.5
2023 144 7th lowest of 15 · 50% of median 148 0.5
2024 302 9th lowest of 15 · 105% of median 91 1.8

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.