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COLUMBIA PLACER 1
Structure dossier · WDID 2300651 · DITCH · MIDDLE FORK SOUTH PLATTE RIVER · DWR record
Where this page's figures come from
Generated 2026-08-28 02:16 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (0576005) — 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.
Current administration
● Fully called out — call at LAST CHANCE DITCH 2 (SOUTH PLATTE RIVER, priority 1863-12-30).
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 1868-12-31 — 273rd 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: 0801151 (1868-12-31). Immediately behind: 2300674 (1868-12-31).
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 |
|---|---|---|---|---|---|---|---|
| 6940.0 | 1868-12-31 | 1913-05-22 | 60.0 | 0.0 | C | IND |
Legal record & documents
1 decreed actions on record across
1 court case:
CA1636.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
CA1636 | 1 | 1913-05-22 | O |
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 643 AF. Its most recent year on record, 2023, came in at 189 AF — 29% of that, and 4th 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) |
|---|---|---|---|---|
| 1998 | 3,686 | 13th lowest of 15 · 573% of median | 138 | 31.0 |
| 1999 | 3,800 | 14th lowest of 15 · 591% of median | 173 | 20.1 |
| 2000 | 4,082 | 15th lowest of 15 · 635% of median | 173 | 46.8 |
| 2001 | 1,070 | 9th lowest of 15 · 166% of median | 160 | 7.6 |
| 2002 | 599 | 7th lowest of 15 · 93% of median | 130 | 4.0 |
| 2003 | 2,847 | 12th lowest of 15 · 443% of median | 184 | 16.7 |
| 2004 | 2,059 | 11th lowest of 15 · 320% of median | 161 | 10.0 |
| 2006 | 1,496 | 10th lowest of 15 · 233% of median | 160 | 12.0 |
| 2007 | 333 | 6th lowest of 15 · 52% of median | 108 | 2.0 |
| 2008 | 643 | 8th lowest of 15 · 100% of median | 54 | 9.0 |
| 2018 | 8 | 1st lowest of 15 · 1% of median | 3 | 2.2 |
| 2019 | 158 | 2nd lowest of 15 · 25% of median | 39 | 6.8 |
| 2021 | 187 | 3rd lowest of 15 · 29% of median | 43 | 4.8 |
| 2022 | 273 | 5th lowest of 15 · 42% of median | 82 | 7.9 |
| 2023 | 189 | 4th lowest of 15 · 29% of median | 63 | 13.6 |
Trends for this structure
Recorded use is falling over its last 15 recorded years (-127 AF/yr, Mann-Kendall p=0.002).
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 | 1 right(s), seniority decoded |
| diversion record | present | 4215 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | sparse | 40% of the irrigation seasons in 1974-2023 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.