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AMITY CANAL

Structure dossier · WDID 6700607 · 1 · ARKANSAS RIVER · DWR record

Where this page's figures come from

Generated 2026-08-27 19:16 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 in line

Priority 1887-02-21 — 33rd most senior of the 2116 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: FORT BENT CANAL (1886-04-01). Immediately behind: J K MARTIN DITCH (1887-05-10).

Decreed rights (3)

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
13566.01887-02-211895-07-01 283.50.0 CSTOIRRCOMINDFIRDOMAUGPWRRCH 0, 7
21857.157971893-04-011918-10-14 500.00.0 CSTOIRRCOMINDFIRDOMAUGPWRRCH 1918-3
57555.02007-07-312007-12-31 0.0500.0 CIRRCOMINDFIRDOMAUGPWRRCH

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 72,937 AF. Its most recent year on record, 2025, came in at 72,937 AF — 100% of that, and 8th lowest of the 15 years with a recorded volume.

This structure records both diversions and reservoir releases — they are separate water movements and are accounted separately below.

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 recordReleased (AF)Days recordedPeak (cfs)
2011 61,702 5th lowest of 15 · 85% of median — 244 351.0
2012 14,094 1st lowest of 15 · 19% of median — 122 313.0
2013 46,971 3rd lowest of 15 · 64% of median — 184 550.0
2014 92,530 10th lowest of 15 · 127% of median — 215 532.0
2015 132,110 13th lowest of 15 · 181% of median — 197 511.0
2016 165,462 15th lowest of 15 · 227% of median — 218 578.1
2017 107,837 11th lowest of 15 · 148% of median — 218 412.0
2018 117,455 12th lowest of 15 · 161% of median — 213 386.0
2019 159,056 14th lowest of 15 · 218% of median — 281 717.7
2020 56,469 4th lowest of 15 · 77% of median — 305 381.0
2021 61,870 6th lowest of 15 · 85% of median — 211 449.0
2022 44,235 2nd lowest of 15 · 61% of median — 365 401.0
2023 70,718 7th lowest of 15 · 97% of median — 304 388.0
2024 85,690 9th lowest of 15 · 118% of median — 137 395.0
2025 72,937 8th lowest of 15 · 100% of median — 123 449.0

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.