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LOUISVILLE RES NO 1
Structure dossier · WDID 0604209 · RESERVOIR · SOUTH BOULDER CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 22:12 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (96d5528) — 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: no administrative call record for this basin.
Where it sits in line
Priority 1860-04-01 — 33rd most senior of the 1867 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: 0602418 (1860-04-01). Immediately behind: MARSHALL LAKE (1860-04-01).
On SOUTH BOULDER CREEK at river mile 16.1, it is 32nd of 58 down the reach. Immediately upstream: EAST BOULDER DITCH. Immediately downstream: HECLA RES.
Position on the modelled network, not a claim about whose water this is — a stream carries water from many rights at once, and diverted water returns to it.
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 |
|---|---|---|---|---|---|---|---|
| 3744.0 | 1860-04-01 | 1882-06-02 | 0.0 | 0.0 | A | IRRMUNOTH | |
| 4853.0 | 1863-04-15 | 1882-06-02 | 0.0 | 0.0 | A | MUN | |
| 5235.0 | 1864-05-01 | 1882-06-02 | 0.0 | 0.0 | A | IRRMUNOTH | |
| 8141.0 | 1872-04-15 | 1882-06-02 | 0.0 | 0.0 | A | IRRMUN | |
| 8553.0 | 1873-06-01 | 1882-06-02 | 0.0 | 0.0 | C | IRRMUN | |
| 14001.0 | 1888-05-01 | 1900-12-19 | 0.0 | 0.0 | A | IRRMUNCOMINDRECFISDOMAUGWLD | |
| 14015.0 | 1888-05-15 | 1907-03-13 | 290.0 | 0.0 | A | DOM | |
| 14439.0 | 1889-07-13 | 1900-12-19 | 0.0 | 0.0 | A | MUNAUGOTH | |
| 20188.16893 | 1896-04-01 | 1907-03-13 | 0.0 | 0.0 | A | MUNAUGOTH |
Legal record & documents
24 decreed actions on record across
8 court cases:
92CW0079, CA4842, 82CW0375, 82CW0376, W9193, W8500, 83CW0319, 80CW0468.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
92CW0079 | 8 | 1953-09-28 | S |
CA4842 | 1 | 1907-03-13 | O |
82CW0375 | 1 | 1907-03-13 | S |
82CW0376 | 1 | 1900-12-19 | S |
W9193 | 1 | 1882-06-02 | O |
W8500 | 2 | 1882-06-02 | O |
83CW0319 | 3 | 1882-06-02 | O |
80CW0468 | 7 | 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 5 years on record)
In a median year this structure has a recorded diversion of 174 AF. Its most recent year on record, 2021, came in at 128 AF — 74% of that, and 2nd lowest of the 5 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) |
|---|---|---|---|---|
| 1982 | 174 | 3rd lowest of 5 · 100% of median | 40 | 7.9 |
| 1983 | 481 | 5th lowest of 5 · 276% of median | 130 | 4.8 |
| 1984 | 328 | 4th lowest of 5 · 188% of median | 72 | 4.3 |
| 1985 | 88 | 1st lowest of 5 · 51% of median | 18 | 3.9 |
| 2021 | 128 | 2nd lowest of 5 · 74% of median | 36 | 4.0 |
Trends for this structure
Its reference gage, EAST BOULDER DITCH: no clear flow trend.
How good is our record of it?
Grade B (7/10 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 | stale | 296 measured days, but newest is 1959 day(s) before the data's end (target 450) |
| record continuity | sparse | 4% of the irrigation seasons in 1982-2021 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.