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LOWER LATHAM RES
Structure dossier · WDID 0203858 · RESERVOIR · SOUTH PLATTE RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 23:19 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 HARMONY DITCH 1 (SOUTH PLATTE RIVER, priority 1897-05-02).
● Fully called out — call at SOUTH PLATTE RIVER COMPACT (SOUTH PLATTE RIVER, priority 1897-06-13).
● Fully called out — call at LOWER PLATTE BEAVER D (SOUTH PLATTE RIVER, priority 1888-04-14).
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 1898-06-23 — 895th 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: 2300592 (1898-05-15). Immediately behind: 0205868 (1898-07-01).
Decreed rights (4)
| 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 |
|---|---|---|---|---|---|---|---|
| 17706.0 | 1898-06-23 | 1918-08-02 | 4325.07 | 0.0 | A | IRR | |
| 18437.0 | 1900-06-24 | 1918-08-02 | 1430.21 | 0.0 | A | IRR | |
| 25050.23959 | 1915-08-07 | 1924-11-12 | 2180.89 | 0.0 | A | IRR | |
| 57677.0 | 2007-11-30 | 2003-12-31 | 0.0 | 0.0 | C | AUG |
Legal record & documents
9 decreed actions on record across
3 court cases:
18CW3194, 03CW0047, CA54658.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
18CW3194 | 1 | 2003-12-31 | S |
03CW0047 | 5 | 2003-12-31 | S |
CA54658 | 3 | 1924-11-12 | 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 5,989 AF. Its most recent year on record, 2025, came in at 339 AF — 6% of that, and 1st lowest of the 14 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) |
|---|---|---|---|---|---|
| 2011 | — | no recorded volume | 254 | 0 | — |
| 2012 | 6,366 | 9th lowest of 14 · 106% of median | 1,483 | 276 | 54.8 |
| 2013 | 4,690 | 4th lowest of 14 · 78% of median | 1,633 | 365 | 49.0 |
| 2014 | 6,039 | 8th lowest of 14 · 101% of median | 152 | 365 | 17.0 |
| 2015 | 1,804 | 2nd lowest of 14 · 30% of median | 402 | 276 | 143.2 |
| 2016 | 4,830 | 5th lowest of 14 · 81% of median | 841 | 338 | 24.6 |
| 2017 | 5,939 | 7th lowest of 14 · 99% of median | 2,420 | 296 | 55.0 |
| 2018 | 4,910 | 6th lowest of 14 · 82% of median | 2,230 | 365 | 76.2 |
| 2019 | 7,741 | 10th lowest of 14 · 129% of median | 2,386 | 330 | 35.7 |
| 2020 | 10,860 | 14th lowest of 14 · 181% of median | 4,015 | 291 | 76.2 |
| 2021 | 8,211 | 11th lowest of 14 · 137% of median | 1,469 | 365 | 43.0 |
| 2022 | 8,809 | 12th lowest of 14 · 147% of median | 2,508 | 365 | 60.4 |
| 2023 | 9,717 | 13th lowest of 14 · 162% of median | 244 | 365 | 67.2 |
| 2024 | 3,600 | 3rd lowest of 14 · 60% of median | 1,343 | 366 | 43.4 |
| 2025 | 339 | 1st lowest of 14 · 6% of median | — | 304 | 4.8 |
Trends for this structure
Recorded use shows no clear trend over its last 14 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 | 4 right(s), seniority decoded |
| diversion record | present | 5243 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | patchy | 40% of the irrigation seasons in 1964-2025 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.