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LAST CHANCE DITCH

Structure dossier · WDID 5700555 · 1 · TROUT CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 20:44 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (a1c9146) — every figure regenerates from this named code version and data image.

Which of its rights get called out?

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 1902-06-01 — 100th most senior of the 1003 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: ECKMAN PARK RES ALT PT 3 (1905-06-10). Immediately behind: KELTON WELL 2 (1912-07-25).

Decreed rights (6)

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
22828.191441902-06-011913-06-06 3.00.0 CIRR 73AA
23167.206721906-08-071913-06-09 4.50.0 CSTOIRRINDFIRPWRALL 82AAA
23167.217811909-08-201913-06-09 1.50.0 CIRR 86A
26551.228171912-06-211931-05-19 0.540.0 CIRR 88
29723.244281916-11-181931-12-05 0.750.0 CIRR 116A
39925.382591954-10-011962-11-15 9.00.0 CSTOIRRINDFIRSTKPWRALL A-28

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 1,582 AF. Its most recent year on record, 2025, came in at 2,220 AF — 140% of that, and 12th 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 1,578 7th lowest of 15 · 100% of median — 101 11.0
2012 865 3rd lowest of 15 · 55% of median — 162 11.6
2013 794 2nd lowest of 15 · 50% of median — 84 14.7
2014 1,292 4th lowest of 15 · 82% of median 104 79 12.2
2015 533 1st lowest of 15 · 34% of median 20 71 4.2
2016 1,385 5th lowest of 15 · 88% of median — 134 9.5
2017 3,034 15th lowest of 15 · 192% of median — 132 13.3
2018 1,791 10th lowest of 15 · 113% of median — 103 14.5
2019 2,404 14th lowest of 15 · 152% of median — 120 14.9
2020 1,582 8th lowest of 15 · 100% of median — 101 11.9
2021 2,027 11th lowest of 15 · 128% of median — 155 20.9
2022 2,385 13th lowest of 15 · 151% of median — 150 17.1
2023 1,771 9th lowest of 15 · 112% of median — 131 14.8
2024 1,488 6th lowest of 15 · 94% of median — 137 6.4
2025 2,220 12th lowest of 15 · 140% of median — 156 14.9

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.