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IVANHOE RESERVOIR TUNNEL

Structure dossier · WDID 3804613 · 1 · FRYINGPAN RIVER · DWR record

Where this page's figures come from

Generated 2026-08-27 21:07 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 1921-06-27 — 454th most senior of the 4788 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: IVANHOE RESERVOIR (1921-06-27). Immediately behind: LYLE DITCH (1924-09-28).

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
28394.26111921-06-271928-01-09 35.00.0 CIRRMUNCOMINDRECFISDOMAUGPWR 246

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 3,033 AF. Its most recent year on record, 2024, came in at 2,771 AF — 91% of that, and 7th 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 3,317 10th lowest of 15 · 109% of median 365 46.4
2011 3,610 11th lowest of 15 · 119% of median 365 50.0
2012 2,696 6th lowest of 15 · 89% of median 366 38.0
2013 3,628 12th lowest of 15 · 120% of median 365 47.8
2014 5,510 15th lowest of 15 · 182% of median 365 46.9
2015 2,041 3rd lowest of 15 · 67% of median 365 38.1
2016 4,536 14th lowest of 15 · 150% of median 365 50.5
2017 2,645 5th lowest of 15 · 87% of median 365 40.0
2018 1,394 1st lowest of 15 · 46% of median 365 36.4
2019 4,117 13th lowest of 15 · 136% of median 365 34.6
2020 3,188 9th lowest of 15 · 105% of median 366 34.0
2021 3,033 8th lowest of 15 · 100% of median 365 27.1
2022 2,307 4th lowest of 15 · 76% of median 365 25.2
2023 2,033 2nd lowest of 15 · 67% of median 365 27.4
2024 2,771 7th lowest of 15 · 91% of median 305 31.9

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.