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BROCK DITCH
Structure dossier · WDID 5700508 · 1 · YAMPA RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 20:32 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.
Which of its rights get called out?
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 1883-03-30 — 6th most senior of the 1003 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: WALKER IRRIG DITCH (1882-05-01). Immediately behind: BURBACK PUMPING PLANT (1883-04-15).
Decreed rights (6)
| 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 |
|---|---|---|---|---|---|---|---|
| 12142.0 | 1883-03-30 | 1892-09-22 | 4.5 | 0.0 | C | IRR | 3 |
| 14154.0 | 1888-10-01 | 1892-09-22 | 1.5 | 0.0 | C | IRR | 35 |
| 21450.19707 | 1903-12-16 | 1908-10-01 | 3.0 | 0.0 | C | IRRPWR | 78-A |
| 24276.19707 | 1903-12-16 | 1916-06-23 | 9.0 | 0.0 | C | IRR | 78-B |
| 24280.24241 | 1916-05-15 | 1916-06-24 | 0.83 | 0.0 | C | IRR | 114 |
| 36295.20191 | 1905-04-13 | 1960-09-01 | 2.67 | 0.0 | C | IRR | 13 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 2,326 AF. Its most recent year on record, 2025, came in at 1,554 AF — 67% of that, and 3rd 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 | 3,189 | 12th lowest of 15 · 137% of median | 150 | 20.0 |
| 2012 | 6,946 | 15th lowest of 15 · 299% of median | 213 | 29.5 |
| 2013 | 2,617 | 9th lowest of 15 · 112% of median | 209 | 11.6 |
| 2014 | 1,039 | 1st lowest of 15 · 45% of median | 130 | 8.4 |
| 2015 | 3,025 | 11th lowest of 15 · 130% of median | 144 | 22.7 |
| 2016 | 1,418 | 2nd lowest of 15 · 61% of median | 148 | 21.3 |
| 2017 | 1,950 | 5th lowest of 15 · 84% of median | 132 | 30.3 |
| 2018 | 1,962 | 6th lowest of 15 · 84% of median | 174 | 22.2 |
| 2019 | 2,326 | 8th lowest of 15 · 100% of median | 171 | 14.8 |
| 2020 | 3,605 | 13th lowest of 15 · 155% of median | 239 | 15.8 |
| 2021 | 2,722 | 10th lowest of 15 · 117% of median | 257 | 24.2 |
| 2022 | 2,251 | 7th lowest of 15 · 97% of median | 139 | 18.3 |
| 2023 | 1,908 | 4th lowest of 15 · 82% of median | 179 | 18.3 |
| 2024 | 3,663 | 14th lowest of 15 · 158% of median | 151 | 20.2 |
| 2025 | 1,554 | 3rd lowest of 15 · 67% of median | 55 | 18.6 |
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.