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NELLIE S DITCH

Structure dossier · WDID 7300513 · 1 · CLARK WASH · DWR record

Where this page's figures come from

Generated 2026-08-27 20:59 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 1910-12-10 — 23rd most senior of the 221 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: DIMATTEI / BERNARDO PUMP 2 (1910-06-23). Immediately behind: NELLIE S RES NO 1 (1910-12-10).

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. UnitsUsesWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on.Case
22848.222581910-12-101916-06-01 5.560.0 CIRR 323

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 218 AF. Its most recent year on record, 2025, came in at 79 AF — 36% of that, and 4th 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)
2011 501 12th lowest of 15 · 230% of median 389 134 5.3
2012 363 10th lowest of 15 · 166% of median 157 91 3.8
2013 155 6th lowest of 15 · 71% of median 0 73 2.2
2014 241 9th lowest of 15 · 111% of median 91 91 2.8
2015 218 8th lowest of 15 · 100% of median 139 97 3.7
2016 598 14th lowest of 15 · 274% of median 89 130 13.4
2017 510 13th lowest of 15 · 234% of median 0 124 6.8
2018 79 4th lowest of 15 · 36% of median 30 58 1.6
2019 458 11th lowest of 15 · 210% of median 214 104 8.6
2020 55 2nd lowest of 15 · 25% of median 28 44 3.4
2021 54 1st lowest of 15 · 25% of median 54 53 1.1
2022 176 7th lowest of 15 · 81% of median 115 71 3.2
2023 777 15th lowest of 15 · 356% of median 310 73 9.2
2024 76 3rd lowest of 15 · 35% of median 44 40 4.0
2025 79 4th lowest of 15 · 36% of median 79 59 1.4

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.