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MARCOTT DITCH
Structure dossier · WDID 4300788 · 1 · SOUTH FORK WHITE RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 23:52 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 1888-04-15 — 649th most senior of the 3293 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: OLAF WELL NO 1 (1905-12-31). Immediately behind: BASSETT DITCH (1893-03-15).
Decreed rights (9)
| 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 |
|---|---|---|---|---|---|---|---|
| 20736.13985 | 1888-04-15 | 1906-10-11 | 4.7 | 0.0 | C | IRR | 163 |
| 20736.20372 | 1905-10-11 | 1906-10-11 | 0.5 | 0.0 | C | IRR | 164 |
| 25767.20558 | 1906-04-15 | 1920-08-16 | 1.5 | 0.0 | C | IRR | 248 |
| 32172.20923 | 1907-04-15 | 1942-05-26 | 7.28 | 0.0 | C | IRR | 428 |
| 38471.0 | 1955-05-01 | 1958-11-26 | 1.35 | 0.0 | C | IRRDOM | 563 |
| 38511.0 | 1955-06-10 | 1958-11-26 | 2.68 | 0.0 | C | IRR | 581 |
| 40384.0 | 1960-07-26 | 1966-11-21 | 1.0 | 0.0 | C | IRR | 679 |
| 41440.0 | 1963-06-17 | 1966-11-21 | 2.0 | 0.0 | C | RECFIS | 728 |
| 45655.32322 | 1938-06-30 | 1975-12-31 | 0.5 | 0.0 | C | IRRRECFISDOM |
Legal record & documents
15 decreed actions on record across
7 court cases:
W2704-75, CA1269, W1589-72, CA0999, CA0624, CA0333, 10/11/1906.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
W2704-75 | 1 | 1975-12-31 | S |
CA1269 | 2 | 1966-11-21 | S |
W1589-72 | 1 | 1958-11-26 | S |
CA0999 | 4 | 1958-11-26 | S |
CA0624 | 1 | 1942-05-26 | S |
CA0333 | 1 | 1920-08-16 | S |
10/11/1906 | 5 | 1906-10-11 | 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 2,769 AF. Its most recent year on record, 2025, came in at 3,012 AF — 109% of that, and 10th 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) |
|---|---|---|---|---|
| 2011 | 2,769 | 8th lowest of 15 · 100% of median | 148 | 24.5 |
| 2012 | 3,734 | 13th lowest of 15 · 135% of median | 159 | 22.5 |
| 2013 | 4,100 | 14th lowest of 15 · 148% of median | 213 | 26.4 |
| 2014 | 4,189 | 15th lowest of 15 · 151% of median | 153 | 20.9 |
| 2015 | 3,300 | 11th lowest of 15 · 119% of median | 176 | 21.6 |
| 2016 | 2,004 | 4th lowest of 15 · 72% of median | 164 | 26.6 |
| 2017 | 2,848 | 9th lowest of 15 · 103% of median | 77 | 24.2 |
| 2018 | 3,328 | 12th lowest of 15 · 120% of median | 89 | 20.0 |
| 2019 | 1,012 | 1st lowest of 15 · 36% of median | 45 | 15.5 |
| 2020 | 2,697 | 7th lowest of 15 · 97% of median | 98 | 27.2 |
| 2021 | 2,037 | 6th lowest of 15 · 74% of median | 107 | 21.3 |
| 2022 | 1,310 | 2nd lowest of 15 · 47% of median | 42 | 30.3 |
| 2023 | 2,033 | 5th lowest of 15 · 73% of median | 125 | 30.3 |
| 2024 | 1,849 | 3rd lowest of 15 · 67% of median | 137 | 11.7 |
| 2025 | 3,012 | 10th lowest of 15 · 109% of median | 121 | 21.3 |
Trends for this structure
Recorded use is falling over its last 15 recorded years (-145 AF/yr, Mann-Kendall p=0.048).
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 | 9 right(s), seniority decoded |
| diversion record | present | 9189 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | patchy | 72% of the irrigation seasons in 1966-2025 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.