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WESTERN SEEP DITCH

Structure dossier · WDID 0200537 · DITCH · SOUTH PLATTE RIVER · DWR record

Where this page's figures come from

Generated 2026-08-27 21:14 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 HARMONY DITCH 1 (SOUTH PLATTE RIVER, priority 1897-05-02).

● Fully called out — call at SOUTH PLATTE RIVER COMPACT (SOUTH PLATTE RIVER, priority 1897-06-13).

● 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 2010-05-26 — 19166th 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: 0204282 (2010-04-27). Immediately behind: 2302022 (2010-05-28).

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
58585.02010-05-262010-12-31 9.031.0 CIRRAUG

Recorded use (last 9 years on record)

In a median year this structure has a recorded diversion of 1,107 AF. Its most recent year on record, 2025, came in at 1,343 AF — 121% of that, and 6th lowest of the 9 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)
2015 2,494 9th lowest of 9 · 225% of median — 301 7.0
2018 11 1st lowest of 9 · 1% of median — 18 0.4
2019 322 4th lowest of 9 · 29% of median — 95 3.0
2020 227 3rd lowest of 9 · 20% of median — 50 2.7
2021 208 2nd lowest of 9 · 19% of median — 106 1.0
2022 1,107 5th lowest of 9 · 100% of median — 365 2.0
2023 1,345 7th lowest of 9 · 122% of median 219 341 2.0
2024 1,690 8th lowest of 9 · 153% of median 599 366 4.0
2025 1,343 6th lowest of 9 · 121% of median 269 304 4.0

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.