Hydrohistorian

← My Water  ·  Print / save as PDF

UNION DITCH FDR NO 1

Structure dossier · WDID 0200886 · DITCH · SOUTH PLATTE RIVER · DWR record

Where this page's figures come from

Generated 2026-08-27 21:13 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (0576005) — 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.

Current administration

● Fully called out — call at LOWER LATHAM DITCH (SOUTH PLATTE RIVER, priority 1877-11-14).

● Fully called out — call at LOWER PLATTE BEAVER D (SOUTH PLATTE RIVER, priority 1888-04-14).

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 1893-07-15 — 842nd most senior of the 21881 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: SLATE DITCH (1893-05-23). Immediately behind: 8005166 (1893-08-24).

Decreed rights (2)

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
15902.01893-07-151918-08-02 116.50.0 AIRRRECAUGCURRCH
15902.01893-07-151918-08-02 20.00.0 CIRRRECAUGCURRCH

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 8,540 AF. Its most recent year on record, 2026, came in at 5,711 AF — 67% of that, and 2nd lowest of the 15 years with a recorded volume.

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 recordDays recordedPeak (cfs)
2012 3,787 1st lowest of 15 · 44% of median 366 10.0
2013 8,152 5th lowest of 15 · 96% of median 365 25.0
2014 11,094 14th lowest of 15 · 130% of median 365 35.0
2015 11,682 15th lowest of 15 · 137% of median 363 110.0
2016 7,992 4th lowest of 15 · 94% of median 366 16.0
2017 8,702 10th lowest of 15 · 102% of median 365 22.4
2018 9,498 13th lowest of 15 · 111% of median 365 32.4
2019 8,517 7th lowest of 15 · 100% of median 365 21.6
2020 8,246 6th lowest of 15 · 97% of median 366 20.1
2021 8,665 9th lowest of 15 · 102% of median 365 35.2
2022 7,581 3rd lowest of 15 · 89% of median 365 24.7
2023 8,540 8th lowest of 15 · 100% of median 365 29.0
2024 9,382 12th lowest of 15 · 110% of median 366 29.4
2025 9,065 11th lowest of 15 · 106% of median 365 24.0
2026 5,711 2nd lowest of 15 · 67% of median 226 25.3

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.