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TANNER DITCH

Structure dossier · WDID 5300830 · 1 · SUNNYSIDE CREEK · DWR record

Where this page's figures come from

Generated 2026-08-28 02:10 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.

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 1890-07-09 — 106th most senior of the 1231 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: KING DITCH (1890-07-08). Immediately behind: P K DITCH (1890-07-14).

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
14800.01890-07-091890-11-20 1.20.0 CIRR 127

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 130 AF. Its most recent year on record, 2019, came in at 269 AF — 207% of that, and 13th 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)
2004 125 6th lowest of 15 · 96% of median 127 0.5
2005 213 12th lowest of 15 · 164% of median 173 1.0
2006 173 11th lowest of 15 · 133% of median 175 0.5
2007 75 2nd lowest of 15 · 58% of median 77 0.5
2008 128 7th lowest of 15 · 98% of median 96 1.0
2009 89 4th lowest of 15 · 68% of median 64 1.0
2010 83 3rd lowest of 15 · 64% of median 85 0.5
2011 58 1st lowest of 15 · 45% of median 95 0.5
2012 101 5th lowest of 15 · 78% of median 169 0.5
2013 157 9th lowest of 15 · 121% of median 159 0.5
2015 539 15th lowest of 15 · 415% of median 142 4.0
2016 285 14th lowest of 15 · 219% of median 98 2.1
2017 130 8th lowest of 15 · 100% of median 75 1.3
2018 171 10th lowest of 15 · 132% of median 70 1.2
2019 269 13th lowest of 15 · 207% of median 109 2.3

How good is our record of it?

Grade B (7/10 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 3015 measured days; currency unknown (no data-coverage date to compare against)
record continuity sparse 32% of the irrigation seasons in 1975-2019 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.