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LAST CHANCE DITCH
Structure dossier · WDID 0500589 · 1 · SAINT VRAIN CREEK · 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 (2deb1d7) — 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 1872-03-15 — 106th most senior of the 1289 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: BEAR MCCORY DITCH (1871-06-01). Immediately behind: JOHNSON DITCH (1873-04-01).
Decreed rights (6)
| 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 |
|---|---|---|---|---|---|---|---|
| 8110.0 | 1872-03-15 | 1882-06-02 | 96.94 | 0.0 | C | IRR | |
| 55374.0 | 2001-08-10 | 2001-12-31 | 2.78 | 97.22 | C | IRRCOMINDRECFISDOMSTKAUGWLD | |
| 56613.55216 | 2001-03-05 | 2005-12-31 | 6.0 | 34.0 | C | IRRMUNCOMINDRECFISAUGALL | |
| 60265.0 | 2014-12-31 | 2014-12-31 | 0.0 | 100.0 | C | COMINDFIR | |
| 60996.57242 | 2006-09-21 | 2017-12-31 | 0.0 | 50.0 | C | IRRINDRECFISFIRAUGCURRCH | |
| 62077.0 | 2019-12-17 | 2019-12-31 | 0.0 | 25.0 | C | MUNAUGALL |
Legal record & documents
12 decreed actions on record across
7 court cases:
19CW3236, 17CW3202, 14CW3172, 05CW0335, 14CW3026, 01CW0274, CA1622.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
19CW3236 | 5 | 2019-12-31 | S |
17CW3202 | 1 | 2017-12-31 | S |
14CW3172 | 1 | 2014-12-31 | S |
05CW0335 | 2 | 2005-12-31 | S |
14CW3026 | 1 | 2001-12-31 | S |
01CW0274 | 1 | 2001-12-31 | S |
CA1622 | 1 | 1882-06-02 | 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 10,337 AF. Its most recent year on record, 2024, came in at 5,890 AF — 57% 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) |
|---|---|---|---|---|
| 2010 | 13,042 | 15th lowest of 15 · 126% of median | 200 | 56.0 |
| 2011 | 11,617 | 12th lowest of 15 · 112% of median | 214 | 50.5 |
| 2012 | 11,209 | 10th lowest of 15 · 108% of median | 192 | 42.3 |
| 2013 | 11,081 | 9th lowest of 15 · 107% of median | 121 | 65.4 |
| 2014 | 9,856 | 6th lowest of 15 · 95% of median | 142 | 51.9 |
| 2015 | 10,337 | 8th lowest of 15 · 100% of median | 214 | 60.6 |
| 2016 | 11,906 | 13th lowest of 15 · 115% of median | 236 | 49.4 |
| 2017 | 9,993 | 7th lowest of 15 · 97% of median | 219 | 43.6 |
| 2018 | 9,170 | 4th lowest of 15 · 89% of median | 214 | 44.0 |
| 2019 | 12,549 | 14th lowest of 15 · 121% of median | 276 | 54.3 |
| 2020 | 11,311 | 11th lowest of 15 · 109% of median | 305 | 44.5 |
| 2021 | 9,823 | 5th lowest of 15 · 95% of median | 215 | 47.8 |
| 2022 | 7,680 | 2nd lowest of 15 · 74% of median | 197 | 37.6 |
| 2023 | 8,338 | 3rd lowest of 15 · 81% of median | 198 | 34.2 |
| 2024 | 5,890 | 1st lowest of 15 · 57% of median | 154 | 32.3 |
Call-derived yield: senior right divertible 61.2% of a median season / 17.3% dry-year.
Trends for this structure
Recorded use is falling over its last 15 recorded years (-340 AF/yr, Mann-Kendall p=0.004).
How good is our record of it?
Grade A (9/10 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 | 6 right(s), seniority decoded |
| diversion record | present | 12396 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | continuous | 78% of the irrigation seasons in 1950-2024 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.