← My Water · Print / save as PDF
GRUBB DITCH BYPASS
Structure dossier · WDID 2002039 · M · BEAR CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 21:12 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 1874-06-21 — 67th most senior of the 8016 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: SHAW D 2 (1874-06-21). Immediately behind: BAR CATTLE CO AUG PLAN (1874-06-21).
Decreed rights (3)
| 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 |
|---|---|---|---|---|---|---|---|
| 8938.0 | 1874-06-21 | 1896-05-01 | 1.46 | 0.24 | C | AUG | 60, 62 |
| 13301.0 | 1886-06-01 | 1896-05-01 | 0.7 | 0.3 | C | AUG | 286 |
| 19456.18386 | 1900-05-04 | 1916-09-13 | 1.0 | 0.0 | C | AUG | 1916-51 |
Recorded use (last 11 years on record)
In a median year this structure has a recorded diversion of 1 AF. Its most recent year on record, 2023, came in at 0 AF — 0% of that, and 1st lowest of the 11 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 | 1 | 6th lowest of 11 · 100% of median | 1 | 2 | 0.5 |
| 2014 | 303 | 10th lowest of 11 · 30300% of median | 303 | 85 | 3.7 |
| 2015 | 12 | 7th lowest of 11 · 1200% of median | 12 | 6 | 3.0 |
| 2016 | 134 | 9th lowest of 11 · 13400% of median | 134 | 89 | 4.2 |
| 2017 | 35 | 8th lowest of 11 · 3500% of median | 35 | 365 | 3.7 |
| 2018 | 0 | 1st lowest of 11 · 0% of median | 0 | 365 | 0.0 |
| 2019 | 0 | 1st lowest of 11 · 0% of median | 0 | 365 | 0.0 |
| 2020 | 0 | 1st lowest of 11 · 0% of median | 0 | 366 | 0.0 |
| 2021 | 0 | 1st lowest of 11 · 0% of median | 0 | 365 | 0.0 |
| 2022 | 317 | 11th lowest of 11 · 31700% of median | 317 | 365 | 1.8 |
| 2023 | 0 | 1st lowest of 11 · 0% of median | 0 | 304 | 0.0 |
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.