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BOULDER LARIMER RES
Structure dossier · WDID 0404156 · 3 · LITTLE THOMPSON RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 20:31 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.
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 1875-06-30 — 47th most senior of the 1296 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: MARY E HALLOWELL DITCH (1863-06-01). Immediately behind: BLACK CANNON DITCH (1876-04-01).
Decreed rights (5)
| 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 |
|---|---|---|---|---|---|---|---|
| 14691.09312 | 1875-06-30 | 1916-06-29 | 1241.46 | 0.0 | A | STOIRRDOMAUG | |
| 14691.10002 | 1877-05-20 | 1916-06-29 | 553.0 | 0.0 | A | STOIRRAUG | |
| 14869.0 | 1890-09-16 | 1916-06-29 | 751.59 | 0.0 | A | STOIRRAUG | |
| 19726.0 | 1904-01-04 | 1916-06-29 | 4797.73 | 0.0 | A | STOIRRAUG | |
| 53691.50198 | 1987-06-09 | 1997-12-31 | 983.31 | 1016.69 | A | IRRDOMSTK |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 3,784 AF. Its most recent year on record, 2024, came in at 3,123 AF — 82% of that, and 3rd lowest of the 14 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 | 3,664 | 6th lowest of 14 · 97% of median | — | 79 | 179.0 |
| 2011 | 8,939 | 14th lowest of 14 · 236% of median | — | 117 | 129.0 |
| 2012 | 1,048 | 1st lowest of 14 · 28% of median | — | 112 | 28.8 |
| 2013 | 3,649 | 5th lowest of 14 · 96% of median | 18 | 43 | 143.0 |
| 2014 | 3,754 | 7th lowest of 14 · 99% of median | 8 | 132 | 51.8 |
| 2015 | 3,154 | 4th lowest of 14 · 83% of median | — | 32 | 155.0 |
| 2016 | 4,381 | 9th lowest of 14 · 116% of median | 424 | 48 | 82.3 |
| 2017 | 7,143 | 13th lowest of 14 · 189% of median | 11 | 71 | 105.0 |
| 2018 | 2,093 | 2nd lowest of 14 · 55% of median | 4,874 | 71 | 34.4 |
| 2019 | 5,384 | 10th lowest of 14 · 142% of median | 5,620 | 92 | 123.2 |
| 2020 | 3,815 | 8th lowest of 14 · 101% of median | 5,122 | 65 | 98.6 |
| 2021 | 6,642 | 11th lowest of 14 · 176% of median | 5,814 | 84 | 161.4 |
| 2022 | — | no recorded volume | 647 | 0 | — |
| 2023 | 6,713 | 12th lowest of 14 · 177% of median | 4,601 | 67 | 117.2 |
| 2024 | 3,123 | 3rd lowest of 14 · 82% of median | 5,795 | 72 | 62.1 |
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.