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PORTER DITCH
Structure dossier · WDID 4500725 · 1 · WEST DIVIDE CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 20:26 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.
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 1885-10-15 — 37th most senior of the 1378 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: HOMESTAKE DITCH (1885-10-08). Immediately behind: UPPER MAMM CREEK DITCH (1885-10-20).
Decreed rights (7)
| 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 |
|---|---|---|---|---|---|---|---|
| 13072.0 | 1885-10-15 | 1888-05-05 | 3.42 | 0.0 | C | IRR | 39 |
| 13798.0 | 1887-10-11 | 1888-05-05 | 8.83 | 0.0 | C | IRR | 96 |
| 20196.16192 | 1894-05-01 | 1905-04-19 | 12.25 | 0.0 | C | IRR | 117BB |
| 20416.18397 | 1900-05-15 | 1906-03-03 | 16.67 | 0.0 | C | IRR | 120B |
| 30170.22738 | 1912-04-03 | 1939-06-22 | 18.83 | 0.0 | C | IRR | 166K |
| 52595.51742 | 1991-08-31 | 1994-12-31 | 1.25 | 0.0 | C | IRR | |
| 52595.52534 | 1993-10-31 | 1994-12-31 | 1.25 | 0.0 | C | IRR |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 3,617 AF. Its most recent year on record, 2024, came in at 3,617 AF — 100% of that, and 8th 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 | 4,299 | 9th lowest of 15 · 119% of median | 187 | 41.1 |
| 2011 | 7,394 | 15th lowest of 15 · 204% of median | 299 | 63.5 |
| 2012 | 2,660 | 5th lowest of 15 · 74% of median | 94 | 24.0 |
| 2013 | 2,657 | 4th lowest of 15 · 74% of median | 104 | 41.0 |
| 2014 | 4,784 | 12th lowest of 15 · 132% of median | 180 | 51.0 |
| 2015 | 5,198 | 13th lowest of 15 · 144% of median | 184 | 39.2 |
| 2016 | 4,712 | 11th lowest of 15 · 130% of median | 151 | 46.8 |
| 2017 | 3,518 | 7th lowest of 15 · 97% of median | 110 | 48.0 |
| 2018 | 2,290 | 2nd lowest of 15 · 63% of median | 86 | 47.3 |
| 2019 | 5,352 | 14th lowest of 15 · 148% of median | 132 | 50.8 |
| 2020 | 2,565 | 3rd lowest of 15 · 71% of median | 76 | 50.2 |
| 2021 | 1,633 | 1st lowest of 15 · 45% of median | 72 | 20.6 |
| 2022 | 3,514 | 6th lowest of 15 · 97% of median | 109 | 42.0 |
| 2023 | 4,575 | 10th lowest of 15 · 126% of median | 96 | 50.8 |
| 2024 | 3,617 | 8th lowest of 15 · 100% of median | 110 | 31.4 |
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.