Hydrohistorian

← My Water  ·  Print / save as PDF

DILLON DITCH

Structure dossier · WDID 6000576 · 1 · BIG BEAR CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 23:22 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 1924-05-15 — 846th most senior of the 2893 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: WEST CAMPBELL DITCH (1924-05-01). Immediately behind: CLARA GULCH PIPELINE (1924-09-29).

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
30604.271631924-05-151939-11-01 3.00.0 CIRR 308

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 139 AF. Its most recent year on record, 2024, came in at 139 AF — 100% of that, and 8th 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 94 3rd lowest of 15 · 68% of median 165 1.2
2011 101 5th lowest of 15 · 73% of median 183 0.5
2012 108 7th lowest of 15 · 78% of median 87 1.8
2013 46 1st lowest of 15 · 33% of median 33 1.2
2014 96 4th lowest of 15 · 69% of median 175 0.5
2015 107 6th lowest of 15 · 77% of median 161 1.0
2016 251 14th lowest of 15 · 181% of median 159 1.5
2017 212 13th lowest of 15 · 152% of median 122 1.2
2018 58 2nd lowest of 15 · 42% of median 83 0.5
2019 148 9th lowest of 15 · 106% of median 156 1.5
2020 182 11th lowest of 15 · 131% of median 101 1.5
2021 184 12th lowest of 15 · 132% of median 143 1.0
2022 252 15th lowest of 15 · 181% of median 169 1.0
2023 159 10th lowest of 15 · 114% of median 175 1.0
2024 139 8th lowest of 15 · 100% of median 153 1.0

How good is our record of it?

Grade B (8/10 points) — the components below are the finding; the letter alone is not.

The rubric, component by component
CheckStateDetail
identity complete name, type, and water source all on file
decreed rights on file 1 right(s), seniority decoded
diversion record present 6257 measured days; currency unknown (no data-coverage date to compare against)
record continuity patchy 58% of the irrigation seasons in 1974-2024 carry measured days
published-record stability stable no upstream revisions recorded against this structure

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.