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E F HARRISON DITCH
Structure dossier · WDID 7200669 · 1 · COON CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 20:30 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 1914-08-21 — 388th most senior of the 2166 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: LEWIS C WILLIAMS DITCH (1914-08-20). Immediately behind: OAK GLEN DITCH (1914-08-21).
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. | Units | UsesWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on. | Case |
|---|---|---|---|---|---|---|---|
| 30895.23608 | 1914-08-21 | 1941-07-25 | 0.52 | 0.0 | C | IRR |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 40 AF. Its most recent year on record, 2024, came in at 14 AF — 35% of that, and 4th lowest of the 15 years with a recorded volume.
| Year | Diverted (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 record | Days recorded | Peak (cfs) |
|---|---|---|---|---|
| 2007 | 47 | 9th lowest of 15 · 118% of median | 88 | 0.3 |
| 2008 | 119 | 14th lowest of 15 · 298% of median | 152 | 0.5 |
| 2009 | 105 | 13th lowest of 15 · 262% of median | 159 | 0.4 |
| 2010 | 50 | 10th lowest of 15 · 125% of median | 73 | 0.4 |
| 2011 | 127 | 15th lowest of 15 · 318% of median | 141 | 0.5 |
| 2012 | 40 | 8th lowest of 15 · 100% of median | 71 | 0.5 |
| 2013 | 23 | 6th lowest of 15 · 58% of median | 27 | 0.5 |
| 2014 | 6 | 1st lowest of 15 · 15% of median | 8 | 0.5 |
| 2015 | 34 | 7th lowest of 15 · 85% of median | 40 | 0.5 |
| 2016 | 73 | 12th lowest of 15 · 182% of median | 114 | 0.5 |
| 2017 | 67 | 11th lowest of 15 · 168% of median | 69 | 0.8 |
| 2020 | 9 | 3rd lowest of 15 · 22% of median | 47 | 0.1 |
| 2022 | 6 | 1st lowest of 15 · 15% of median | 48 | 0.1 |
| 2023 | 15 | 5th lowest of 15 · 38% of median | 86 | 0.1 |
| 2024 | 14 | 4th lowest of 15 · 35% of median | 75 | 0.1 |
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.