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THOMAS ROACH DITCH #2

Structure dossier · WDID 6201493 · 1 · ELK CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 21:06 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 1880-09-01 — 17th most senior of the 1980 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: WHINNERY ELK CR&NARROW G (1880-09-01). Immediately behind: ALDER DITCH (1881-05-15).

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
11202.01880-09-011904-03-28 2.530.0 CIRR 16, 17
16315.01894-09-011904-03-28 1.040.0 CIRR 78
19570.01903-08-011904-03-28 0.290.0 CIRR 103
23138.205841906-05-111925-07-11 4.960.0 CIRR 147
27585.112021880-09-011941-04-21 2.30.0 CIRR 178
27585.238681915-05-081941-04-21 5.250.0 CIRR 295

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 1,535 AF. Its most recent year on record, 2025, came in at 722 AF — 47% of that, and 1st 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 1,126 4th lowest of 15 · 73% of median 109 11.3
2011 1,681 12th lowest of 15 · 110% of median 148 10.1
2012 1,620 10th lowest of 15 · 106% of median 114 9.2
2013 1,609 9th lowest of 15 · 105% of median 138 11.3
2014 1,535 8th lowest of 15 · 100% of median 94 11.6
2015 734 2nd lowest of 15 · 48% of median 128 9.7
2017 863 3rd lowest of 15 · 56% of median 111 10.1
2018 1,700 13th lowest of 15 · 111% of median 151 8.5
2019 1,474 7th lowest of 15 · 96% of median 144 8.1
2020 1,197 5th lowest of 15 · 78% of median 97 8.3
2021 1,252 6th lowest of 15 · 82% of median 128 7.3
2022 1,650 11th lowest of 15 · 108% of median 147 8.1
2023 1,758 14th lowest of 15 · 114% of median 120 9.1
2024 2,125 15th lowest of 15 · 138% of median 182 7.9
2025 722 1st lowest of 15 · 47% of median 80 6.1

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.