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ROBUCK DITCH
Structure dossier · WDID 3001195 · 8 · LIGHTNER CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 19:49 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 in line
Priority 1899-03-30 — 364th most senior of the 2277 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: STEWARD IRRIGATING DITCH (1899-03-29). Immediately behind: MENALDINO WELL (1899-12-31).
Decreed rights (1)
| 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 |
|---|---|---|---|---|---|---|---|
| 17986.0 | 1899-03-30 | 1923-11-08 | 0.37 | 0.0 | C | IRR | L-14 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 15 AF. Its most recent year on record, 1982, came in at 8 AF — 53% of that, and 6th 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) |
|---|---|---|---|---|
| 1954 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 1955 | 64 | 12th lowest of 15 · 427% of median | 48 | 1.0 |
| 1956 | 37 | 9th lowest of 15 · 247% of median | 98 | 0.2 |
| 1957 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 1959 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 1965 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 1966 | 38 | 10th lowest of 15 · 253% of median | 70 | 0.5 |
| 1967 | 66 | 13th lowest of 15 · 440% of median | 124 | 1.0 |
| 1968 | 95 | 14th lowest of 15 · 633% of median | 144 | 1.0 |
| 1974 | 12 | 7th lowest of 15 · 80% of median | 61 | 0.1 |
| 1975 | 99 | 15th lowest of 15 · 660% of median | 304 | 0.2 |
| 1978 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 1979 | 15 | 8th lowest of 15 · 100% of median | 79 | 0.1 |
| 1981 | 51 | 11th lowest of 15 · 340% of median | 125 | 0.4 |
| 1982 | 8 | 6th lowest of 15 · 53% of median | 51 | 0.1 |
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.