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PORTER NO 1 DITCH

Structure dossier · WDID 6200710 · 1 · LAKE FORK · 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 (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 1967-11-15 — 643rd most senior of the 1980 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: LASHBOUGH NO 2 DITCH (1967-11-15). Immediately behind: PORTER NO 2 DITCH (1967-11-15).

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
43052.01967-11-151969-12-02 4.50.0 CIRRAUG 504-509

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 319 AF. Its most recent year on record, 2025, came in at 145 AF — 46% of that, and 1st 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)
2009 319 8th lowest of 15 · 100% of median 172 1.7
2010 666 14th lowest of 15 · 209% of median 179 4.8
2011 467 11th lowest of 15 · 146% of median 168 4.6
2012 279 4th lowest of 15 · 88% of median 185 1.6
2013 674 15th lowest of 15 · 211% of median 161 3.7
2014 413 9th lowest of 15 · 130% of median 150 2.4
2015 493 12th lowest of 15 · 154% of median 93 3.9
2017 172 2nd lowest of 15 · 54% of median 102 1.4
2018 208 3rd lowest of 15 · 65% of median 143 0.9
2019 303 6th lowest of 15 · 95% of median 183 1.9
2020 655 13th lowest of 15 · 205% of median 173 2.2
2021 414 10th lowest of 15 · 130% of median 166 3.6
2023 307 7th lowest of 15 · 96% of median 132 3.0
2024 280 5th lowest of 15 · 88% of median 172 1.8
2025 145 1st lowest of 15 · 46% of median 73 1.2

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.