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UPPER FROST DITCH
Structure dossier · WDID 3700843 · 1 · BRUSH CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 23:48 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 1880-10-20 — 136th most senior of the 2162 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: NOTTINGHAM DITCH (76) (1892-11-03). Immediately behind: ADAMS RIB WELL AR-3 (1880-10-20).
Decreed rights (7)
| 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 |
|---|---|---|---|---|---|---|---|
| 16251.11251 | 1880-10-20 | 1901-03-05 | 3.2 | 0.0 | C | IRRAUG | 129 |
| 18476.0 | 1900-08-02 | 1901-03-05 | 0.0 | 0.0 | C | IRR | 197 |
| 18627.0 | 1900-12-31 | 1901-03-05 | 2.0 | 0.0 | C | IRRMUNAUGEVPOTH | 196 |
| 20427.19144 | 1902-06-01 | 1907-06-04 | 0.0 | 0.0 | C | IRR | 240 |
| 25708.19144 | 1902-06-01 | 1921-06-29 | 0.0 | 0.0 | C | IRR | 353 |
| 30894.26906 | 1923-09-01 | 1936-10-03 | 7.05 | 0.0 | C | IRR | 455U, 455Z |
| 54506.0 | 1999-03-26 | 1999-12-31 | 0.0 | 6.5 | C | IRRRECFISFIRAUGOTHWLD |
Legal record & documents
17 decreed actions on record across
9 court cases:
99CW0242, W0137, CA0963, 13CW3101, CA0385, 99CW0243, 99CW0194, 94CW0290, 80CW0345.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
99CW0242 | 1 | 1999-12-31 | S |
W0137 | 1 | 1936-10-03 | S |
CA0963 | 2 | 1936-10-03 | S |
13CW3101 | 4 | 1936-10-03 | S |
CA0385 | 2 | 1901-03-05 | S |
99CW0243 | 2 | 1901-03-05 | S |
99CW0194 | 2 | 1901-03-05 | S |
94CW0290 | 1 | 1901-03-05 | S |
80CW0345 | 2 | 1901-03-05 | 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 1,074 AF. Its most recent year on record, 2024, came in at 1,496 AF — 139% of that, and 12th lowest of the 15 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 | 1,056 | 7th lowest of 15 · 98% of median | — | 126 | 6.8 |
| 2011 | 3,564 | 15th lowest of 15 · 332% of median | — | 189 | 11.2 |
| 2012 | 2,128 | 14th lowest of 15 · 198% of median | — | 197 | 6.4 |
| 2013 | 1,205 | 11th lowest of 15 · 112% of median | — | 184 | 3.8 |
| 2014 | 1,113 | 9th lowest of 15 · 104% of median | — | 184 | 4.1 |
| 2015 | 1,183 | 10th lowest of 15 · 110% of median | — | 184 | 4.6 |
| 2016 | 115 | 1st lowest of 15 · 11% of median | 76 | 214 | 0.3 |
| 2017 | 598 | 5th lowest of 15 · 56% of median | 65 | 273 | 3.4 |
| 2018 | 118 | 2nd lowest of 15 · 11% of median | 65 | 304 | 2.2 |
| 2019 | 216 | 3rd lowest of 15 · 20% of median | 66 | 270 | 1.5 |
| 2020 | 516 | 4th lowest of 15 · 48% of median | 65 | 359 | 2.4 |
| 2021 | 888 | 6th lowest of 15 · 83% of median | 66 | 365 | 3.7 |
| 2022 | 1,720 | 13th lowest of 15 · 160% of median | 66 | 365 | 7.3 |
| 2023 | 1,074 | 8th lowest of 15 · 100% of median | 66 | 365 | 3.4 |
| 2024 | 1,496 | 12th lowest of 15 · 139% of median | 66 | 305 | 5.9 |
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 (8/10 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 | 7 right(s), seniority decoded |
| diversion record | present | 9966 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | patchy | 63% of the irrigation seasons in 1951-2024 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.