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WEST SIDE CANAL
Structure dossier · WDID 5400590 · 1 · LITTLE SNAKE RIVER · DWR record
Where this page's figures come from
Generated 2026-08-28 04:35 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 1928-11-07 — 149th most senior of the 724 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: GRIEVE WELL (1926-06-01). Immediately behind: JEBENS SEEP WASTE WATER (1928-11-07).
Decreed rights (3)
| 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 |
|---|---|---|---|---|---|---|---|
| 29134.288 | 1928-11-07 | 1935-01-21 | 5.07 | 0.0 | C | IRR | 70 |
| 31367.16779 | 1895-12-09 | 1938-10-20 | 4.28 | 0.0 | C | IRR | 77 |
| 31367.288 | 1928-11-07 | 1938-10-20 | 1.5 | 0.0 | C | IRR | 77 |
Legal record & documents
4 decreed actions on record across
3 court cases:
CA0862, 09CW0006, 01/21/1935.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
CA0862 | 2 | 1938-10-20 | S |
09CW0006 | 1 | 1938-10-20 | S |
01/21/1935 | 1 | 1935-01-21 | 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 8,499 AF. Its most recent year on record, 2025, came in at 262 AF — 3% of that, and 1st 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) |
|---|---|---|---|---|
| 2006 | 3,661 | 3rd lowest of 15 · 43% of median | 176 | 11.9 |
| 2007 | 6,599 | 6th lowest of 15 · 78% of median | 170 | 42.6 |
| 2008 | 11,427 | 12th lowest of 15 · 134% of median | 109 | 80.1 |
| 2009 | 10,481 | 11th lowest of 15 · 123% of median | 135 | 56.5 |
| 2010 | 10,359 | 10th lowest of 15 · 122% of median | 153 | 71.2 |
| 2011 | 12,976 | 13th lowest of 15 · 153% of median | 145 | 151.0 |
| 2012 | 4,731 | 4th lowest of 15 · 56% of median | 184 | 19.5 |
| 2013 | 30,636 | 15th lowest of 15 · 360% of median | 195 | 180.0 |
| 2015 | 26,963 | 14th lowest of 15 · 317% of median | 170 | 139.0 |
| 2016 | 9,860 | 9th lowest of 15 · 116% of median | 152 | 62.0 |
| 2018 | 6,506 | 5th lowest of 15 · 77% of median | 127 | 42.0 |
| 2019 | 8,499 | 8th lowest of 15 · 100% of median | 141 | 53.0 |
| 2020 | 7,656 | 7th lowest of 15 · 90% of median | 150 | 41.7 |
| 2021 | 880 | 2nd lowest of 15 · 10% of median | 57 | 11.0 |
| 2025 | 262 | 1st lowest of 15 · 3% of median | 72 | 1.9 |
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 B (7/10 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 | 3 right(s), seniority decoded |
| diversion record | present | 4309 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | sparse | 38% of the irrigation seasons in 1972-2025 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.