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SOUTH MENDENHALL D
Structure dossier · WDID 8000867 · DITCH · NORTH FORK SOUTH PLATTE RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 20:38 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (e70d0b5) — every figure regenerates from this named code version and data image.
Current administration
● In priority — no active call senior to this structure's rights affects its district (23 active call(s) checked).
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 1891-12-31 — 1287th most senior of the 21881 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: 2303700 (1891-04-28). Immediately behind: 8000656 (1892-05-30).
Decreed rights (1)
| 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 |
|---|---|---|---|---|---|---|---|
| 24974.1534 | 1891-12-31 | 1922-06-21 | 1.0 | 0.0 | C | IRR |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 73 AF. Its most recent year on record, 2024, came in at 38 AF — 52% of that, and 6th 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) |
|---|---|---|---|---|
| 1986 | 19 | 2nd lowest of 15 · 26% of median | 39 | 0.2 |
| 2001 | 65 | 7th lowest of 15 · 89% of median | 12 | 3.0 |
| 2009 | 147 | 14th lowest of 15 · 201% of median | 76 | 1.0 |
| 2010 | 107 | 10th lowest of 15 · 147% of median | 68 | 1.0 |
| 2011 | 89 | 9th lowest of 15 · 122% of median | 50 | 1.0 |
| 2014 | 121 | 12th lowest of 15 · 166% of median | 83 | 1.0 |
| 2015 | 139 | 13th lowest of 15 · 190% of median | 71 | 1.0 |
| 2016 | 179 | 15th lowest of 15 · 245% of median | 91 | 1.0 |
| 2017 | 24 | 4th lowest of 15 · 33% of median | 25 | 0.5 |
| 2019 | 111 | 11th lowest of 15 · 152% of median | 57 | 1.0 |
| 2020 | 22 | 3rd lowest of 15 · 30% of median | 13 | 1.0 |
| 2021 | 26 | 5th lowest of 15 · 36% of median | 14 | 1.0 |
| 2022 | 10 | 1st lowest of 15 · 14% of median | 7 | 1.0 |
| 2023 | 73 | 8th lowest of 15 · 100% of median | 39 | 1.0 |
| 2024 | 38 | 6th lowest of 15 · 52% of median | 20 | 1.0 |
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.