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LARSEN DITCH
Structure dossier · WDID 5800728 · 1 · ELK RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 21:22 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.
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 1889-05-01 — 92nd most senior of the 3097 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: SAGE HEN DITCH (1889-04-13). Immediately behind: ACTON D (1889-05-07).
Decreed rights (2)
| 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 |
|---|---|---|---|---|---|---|---|
| 14366.0 | 1889-05-01 | 1892-09-22 | 5.2 | 0.0 | C | IRR | (67)73 |
| 55487.0 | 2001-12-01 | 2001-12-31 | 1.0 | 0.0 | C | OTH |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 598 AF. Its most recent year on record, 2025, came in at 731 AF — 122% of that, and 9th 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) |
|---|---|---|---|---|
| 2011 | 207 | 2nd lowest of 15 · 35% of median | 90 | 2.0 |
| 2012 | 355 | 4th lowest of 15 · 59% of median | 134 | 3.2 |
| 2013 | 1,365 | 15th lowest of 15 · 228% of median | 100 | 8.8 |
| 2014 | 836 | 11th lowest of 15 · 140% of median | 94 | 8.0 |
| 2015 | 397 | 7th lowest of 15 · 66% of median | 178 | 3.3 |
| 2016 | 137 | 1st lowest of 15 · 23% of median | 76 | 1.0 |
| 2017 | 234 | 3rd lowest of 15 · 39% of median | 98 | 2.7 |
| 2018 | 364 | 5th lowest of 15 · 61% of median | 65 | 4.0 |
| 2019 | 980 | 12th lowest of 15 · 164% of median | 119 | 5.4 |
| 2020 | 1,263 | 14th lowest of 15 · 211% of median | 113 | 7.5 |
| 2021 | 1,042 | 13th lowest of 15 · 174% of median | 146 | 9.0 |
| 2022 | 598 | 8th lowest of 15 · 100% of median | 160 | 3.9 |
| 2023 | 765 | 10th lowest of 15 · 128% of median | 153 | 5.7 |
| 2024 | 390 | 6th lowest of 15 · 65% of median | 86 | 4.3 |
| 2025 | 731 | 9th lowest of 15 · 122% of median | 170 | 5.2 |
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.