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J S PORTER DITCH
Structure dossier · WDID 4500642 · 1 · ALKALI CREEK · DWR record
Where this page's figures come from
Generated 2026-08-28 02:57 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 1899-01-28 — 110th 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: MULTA-FLEXA DITCH AP (1893-05-01). Immediately behind: DILLMAN DITCH (1895-04-02).
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 |
|---|---|---|---|---|---|---|---|
| 19789.17925 | 1899-01-28 | 1904-03-12 | 0.8 | 0.0 | C | IRR | 119AAAA |
| 21166.2084 | 1907-01-22 | 1908-01-07 | 1.6 | 0.0 | C | IRR | |
| 56613.25871 | 1920-10-31 | 2005-12-31 | 0.8 | 0.0 | C | IRR |
Legal record & documents
9 decreed actions on record across
4 court cases:
05CW0123, CA1263, 01CW0311, CA1015.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
05CW0123 | 2 | 2005-12-31 | S |
CA1263 | 2 | 1908-01-07 | S |
01CW0311 | 4 | 1908-01-07 | S |
CA1015 | 1 | 1904-03-12 | S |
DWR's own records for this structure: net amounts · transactions & adjudication history · scanned decrees (search a case number there for the imaged document). On this site: the district's full legal picture →
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 210 AF. Its most recent year on record, 2024, came in at 303 AF — 144% of that, and 13th 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) |
|---|---|---|---|---|
| 2005 | 225 | 10th lowest of 15 · 107% of median | 43 | 3.6 |
| 2006 | 224 | 9th lowest of 15 · 107% of median | 50 | 2.8 |
| 2007 | 210 | 8th lowest of 15 · 100% of median | 70 | 1.8 |
| 2008 | 359 | 14th lowest of 15 · 171% of median | 98 | 3.0 |
| 2009 | 878 | 15th lowest of 15 · 418% of median | 70 | 10.0 |
| 2013 | 125 | 5th lowest of 15 · 60% of median | 26 | 3.2 |
| 2014 | 272 | 12th lowest of 15 · 130% of median | 59 | 3.2 |
| 2015 | 40 | 2nd lowest of 15 · 19% of median | 62 | 0.5 |
| 2017 | 161 | 7th lowest of 15 · 77% of median | 81 | 2.2 |
| 2018 | 76 | 3rd lowest of 15 · 36% of median | 49 | 0.8 |
| 2019 | 133 | 6th lowest of 15 · 63% of median | 85 | 0.8 |
| 2021 | 26 | 1st lowest of 15 · 12% of median | 23 | 0.8 |
| 2022 | 76 | 3rd lowest of 15 · 36% of median | 43 | 2.4 |
| 2023 | 266 | 11th lowest of 15 · 127% of median | 57 | 3.0 |
| 2024 | 303 | 13th lowest of 15 · 144% of median | 97 | 3.4 |
Trends for this structure
Recorded use shows no clear trend over its last 15 recorded years — which is itself worth knowing.
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
| Check | State | Detail |
|---|---|---|
| identity | complete | name, type, and water source all on file |
| decreed rights | on file | 3 right(s), seniority decoded |
| diversion record | present | 1359 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | sparse | 16% of the irrigation seasons in 1985-2024 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.