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SIMPSON DITCH
Structure dossier · WDID 4300928 · 1 · NORTH FORK WHITE RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 21:20 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 1903-07-22 — 1009th most senior of the 3293 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: SANDY DITCH (1902-11-20). Immediately behind: DOG TOWN DITCH (1903-10-15).
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 |
|---|---|---|---|---|---|---|---|
| 32172.1956 | 1903-07-22 | 1942-05-26 | 2.5 | 0.0 | C | IRR | 407 |
| 32172.19966 | 1904-08-31 | 1942-05-26 | 2.7 | 0.0 | C | IRR | 418 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 1,107 AF. Its most recent year on record, 2025, came in at 1,011 AF — 91% of that, and 5th 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 | 1,438 | 13th lowest of 15 · 130% of median | 160 | 6.2 |
| 2012 | 1,588 | 15th lowest of 15 · 144% of median | 155 | 5.2 |
| 2013 | 1,010 | 4th lowest of 15 · 91% of median | 144 | 5.2 |
| 2014 | 1,484 | 14th lowest of 15 · 134% of median | 150 | 5.2 |
| 2015 | 99 | 1st lowest of 15 · 9% of median | 75 | 1.5 |
| 2016 | 346 | 2nd lowest of 15 · 31% of median | 350 | 0.5 |
| 2017 | 838 | 3rd lowest of 15 · 76% of median | 186 | 4.6 |
| 2018 | 1,037 | 6th lowest of 15 · 94% of median | 151 | 5.2 |
| 2019 | 1,107 | 8th lowest of 15 · 100% of median | 139 | 5.2 |
| 2020 | 1,107 | 8th lowest of 15 · 100% of median | 139 | 5.2 |
| 2021 | 1,188 | 11th lowest of 15 · 107% of median | 160 | 5.6 |
| 2022 | 1,165 | 10th lowest of 15 · 105% of median | 147 | 5.2 |
| 2023 | 1,054 | 7th lowest of 15 · 95% of median | 160 | 5.2 |
| 2024 | 1,214 | 12th lowest of 15 · 110% of median | 168 | 5.2 |
| 2025 | 1,011 | 5th lowest of 15 · 91% 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.