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HARTLAND DITCH
Structure dossier · WDID 4000879 · 1 · GUNNISON RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 22:30 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 1881-12-31 — 605th most senior of the 4661 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: BONA FIDE DITCH (1881-11-30). Immediately behind: TRIAL DITCH (1882-01-31).
Decreed rights (2)
| 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 |
|---|---|---|---|---|---|---|---|
| 18729.11688 | 1881-12-31 | 1903-02-25 | 41.0 | 0.0 | C | IRR | 2 |
| 18729.11719 | 1882-01-31 | 1903-02-25 | 6.37 | 0.0 | C | IRR | 3, DPN3 |
Legal record & documents
3 decreed actions on record across
3 court cases:
CA0374, 90CW0020, 03CW0076.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
CA0374 | 1 | 1903-02-25 | S |
90CW0020 | 1 | 1903-02-25 | S |
03CW0076 | 1 | 1903-02-25 | 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 18,110 AF. Its most recent year on record, 2024, came in at 11,664 AF — 64% 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 | 23,088 | 15th lowest of 15 · 128% of median | 201 | 60.0 |
| 2011 | 21,005 | 14th lowest of 15 · 116% of median | 203 | 55.0 |
| 2012 | 17,245 | 6th lowest of 15 · 95% of median | 211 | 50.0 |
| 2013 | 18,724 | 9th lowest of 15 · 103% of median | 206 | 50.0 |
| 2014 | 19,081 | 11th lowest of 15 · 105% of median | 214 | 50.0 |
| 2015 | 19,692 | 12th lowest of 15 · 109% of median | 213 | 50.0 |
| 2016 | 20,135 | 13th lowest of 15 · 111% of median | 210 | 50.0 |
| 2017 | 18,770 | 10th lowest of 15 · 104% of median | 209 | 47.0 |
| 2018 | 18,036 | 7th lowest of 15 · 100% of median | 212 | 50.0 |
| 2019 | 14,225 | 3rd lowest of 15 · 78% of median | 208 | 43.2 |
| 2020 | 15,491 | 5th lowest of 15 · 86% of median | 202 | 40.0 |
| 2021 | 14,282 | 4th lowest of 15 · 79% of median | 187 | 54.9 |
| 2022 | 18,110 | 8th lowest of 15 · 100% of median | 208 | 50.3 |
| 2023 | 12,453 | 2nd lowest of 15 · 69% of median | 187 | 40.6 |
| 2024 | 11,664 | 1st lowest of 15 · 64% of median | 178 | 42.9 |
Trends for this structure
Recorded use is falling over its last 15 recorded years (-642 AF/yr, Mann-Kendall p=0.002).
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 | 2 right(s), seniority decoded |
| diversion record | present | 11918 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | continuous | 100% of the irrigation seasons in 1970-2024 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.