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LARKIN DITCH
Structure dossier · WDID 4500861 · 1 · COLORADO RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 22:30 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 1888-04-01 — 181st 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: JENKINS WASTE WATER D (1909-04-01). Immediately behind: BLUESTONE VALLEY DITCH (1895-01-01).
Decreed rights (4)
| 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 |
|---|---|---|---|---|---|---|---|
| 22729.13971 | 1888-04-01 | 1912-07-22 | 14.39 | 0.0 | C | IRRAUG | |
| 30895.13971 | 1888-04-01 | 1941-07-25 | 10.4 | 0.0 | C | DOMSTK | |
| 37103.0 | 1951-08-02 | 1970-11-10 | 0.0 | 0.0 | C | IRRMUNCOMINDRECDOMOTH | |
| 43829.36889 | 1950-12-31 | 1970-12-31 | 12.5 | 0.0 | C | IRRAUG |
Legal record & documents
15 decreed actions on record across
7 court cases:
W0176, 23CW3022, 05CW0076, 82CW0367, CA5812, W0014, CA1927.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
W0176 | 2 | 1970-12-31 | S |
23CW3022 | 4 | 1970-12-31 | S |
05CW0076 | 4 | 1970-12-31 | S |
82CW0367 | 1 | 1970-11-10 | S |
CA5812 | 1 | 1941-07-25 | S |
W0014 | 2 | 1912-07-22 | S |
CA1927 | 1 | 1912-07-22 | 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 2,380 AF. Its most recent year on record, 2024, came in at 1,722 AF — 72% of that, and 6th lowest of the 15 years with a recorded volume.
This structure records both diversions and reservoir releases — they are separate water movements and are accounted separately below.
| 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 | Released (AF) | Days recorded | Peak (cfs) |
|---|---|---|---|---|---|
| 2010 | 1,644 | 5th lowest of 15 · 69% of median | — | 124 | 12.0 |
| 2011 | 2,380 | 8th lowest of 15 · 100% of median | — | 135 | 16.0 |
| 2012 | 5,962 | 15th lowest of 15 · 250% of median | — | 192 | 20.0 |
| 2013 | 789 | 2nd lowest of 15 · 33% of median | — | 95 | 6.0 |
| 2014 | 1,359 | 4th lowest of 15 · 57% of median | — | 106 | 8.0 |
| 2015 | 3,460 | 14th lowest of 15 · 145% of median | 267 | 196 | 15.7 |
| 2016 | 2,386 | 9th lowest of 15 · 100% of median | 311 | 216 | 10.7 |
| 2017 | 1,232 | 3rd lowest of 15 · 52% of median | 28 | 184 | 12.6 |
| 2018 | 586 | 1st lowest of 15 · 25% of median | 256 | 204 | 5.7 |
| 2019 | 3,056 | 13th lowest of 15 · 128% of median | 29 | 159 | 16.0 |
| 2020 | 2,015 | 7th lowest of 15 · 85% of median | — | 169 | 10.0 |
| 2021 | 3,049 | 12th lowest of 15 · 128% of median | — | 181 | 15.0 |
| 2022 | 2,549 | 10th lowest of 15 · 107% of median | — | 188 | 10.0 |
| 2023 | 2,757 | 11th lowest of 15 · 116% of median | — | 174 | 15.0 |
| 2024 | 1,722 | 6th lowest of 15 · 72% of median | — | 82 | 15.0 |
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 A (9/10 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 | 4 right(s), seniority decoded |
| diversion record | present | 14326 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | continuous | 100% of the irrigation seasons in 1971-2024 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.