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PIERSON AND HARRIS DITCH
Structure dossier · WDID 3900638 · 1 · EAST ELK CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 21:13 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 1898-09-27 — 144th most senior of the 1758 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: NEW HARRIS DITCH (1898-09-27). Immediately behind: EAST FORK DITCH (1888-03-03).
Decreed rights (3)
| 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 |
|---|---|---|---|---|---|---|---|
| 19306.17802 | 1898-09-27 | 1902-12-19 | 25.6 | 0.0 | C | IRRINDDOM | 156A |
| 32959.25995 | 1921-03-04 | 1943-01-11 | 2.2 | 0.0 | C | IRR | 202N, 220N |
| 51134.50948 | 1989-06-28 | 1990-12-31 | 0.3 | 0.0 | C | IRRFISFIRSTK |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 713 AF. Its most recent year on record, 2024, came in at 742 AF — 104% of that, and 10th 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) |
|---|---|---|---|---|
| 2010 | 590 | 1st lowest of 15 · 83% of median | 119 | 3.6 |
| 2011 | 631 | 2nd lowest of 15 · 88% of median | 118 | 3.6 |
| 2012 | 669 | 5th lowest of 15 · 94% of median | 143 | 3.7 |
| 2013 | 710 | 7th lowest of 15 · 100% of median | 150 | 4.4 |
| 2014 | 1,199 | 14th lowest of 15 · 168% of median | 165 | 4.5 |
| 2015 | 776 | 11th lowest of 15 · 109% of median | 121 | 3.6 |
| 2016 | 713 | 8th lowest of 15 · 100% of median | 132 | 3.6 |
| 2017 | 975 | 13th lowest of 15 · 137% of median | 174 | 4.0 |
| 2018 | 675 | 6th lowest of 15 · 95% of median | 138 | 4.1 |
| 2019 | 738 | 9th lowest of 15 · 104% of median | 137 | 3.3 |
| 2020 | 653 | 3rd lowest of 15 · 92% of median | 104 | 3.5 |
| 2021 | 658 | 4th lowest of 15 · 92% of median | 126 | 3.5 |
| 2022 | 853 | 12th lowest of 15 · 120% of median | 122 | 4.2 |
| 2023 | 1,607 | 15th lowest of 15 · 225% of median | 182 | 4.9 |
| 2024 | 742 | 10th lowest of 15 · 104% of median | 157 | 4.6 |
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.