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BLACKMAN DUNLAP CLARK D

Structure dossier · WDID 7200540 · 1 · PLATEAU CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 21:09 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

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 1888-09-19 — 84th most senior of the 2166 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: PARK VIEW DITCH (1888-09-17). Immediately behind: ATWELL DITCH COON CREEK (1888-09-19).

Decreed rights (5)

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. UnitsUsesWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on.Case
14142.01888-09-191890-02-07 5.50.0 CIRR 72
18749.151011891-05-061905-10-14 0.8280.0 CIRR
18749.158441893-05-181905-10-14 0.90.0 CIRR
30895.141421888-09-191941-07-25 1.50.0 CDOM
32811.01939-11-011941-07-25 0.80.0 CIRR

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 1,440 AF. Its most recent year on record, 2024, came in at 1,524 AF — 106% of that, and 9th lowest of the 15 years with a recorded volume.

This structure records both diversions and reservoir releases — they are separate water movements and are accounted separately below.

YearDiverted (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 recordReleased (AF)Days recordedPeak (cfs)
2010 2,053 14th lowest of 15 · 143% of median — 276 9.8
2011 1,440 8th lowest of 15 · 100% of median — 253 6.9
2012 2,263 15th lowest of 15 · 157% of median — 305 8.6
2013 1,368 5th lowest of 15 · 95% of median — 132 9.3
2014 990 1st lowest of 15 · 69% of median — 104 11.6
2015 1,532 10th lowest of 15 · 106% of median — 162 9.5
2016 1,532 10th lowest of 15 · 106% of median — 118 10.0
2017 1,723 13th lowest of 15 · 120% of median — 138 11.3
2018 1,124 3rd lowest of 15 · 78% of median — 178 7.5
2019 1,383 6th lowest of 15 · 96% of median — 129 8.8
2020 1,060 2nd lowest of 15 · 74% of median — 178 7.2
2021 1,418 7th lowest of 15 · 98% of median — 160 9.3
2022 1,315 4th lowest of 15 · 91% of median — 137 6.9
2023 1,583 12th lowest of 15 · 110% of median — 162 8.5
2024 1,524 9th lowest of 15 · 106% of median — 168 7.7

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.