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160 SPRING

Structure dossier · WDID 2900760 · 4 · WEST FORK SAN JUAN RIVER · DWR record

Where this page's figures come from

Generated 2026-08-28 02:55 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 1959-06-02 — 324th most senior of the 853 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: TEAL LAKE DITCH (1959-06-02). Immediately behind: CONSTANT SPRK PUMP STA (1959-07-28).

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
41016.399641959-06-021968-12-19 1.00.0 CIRR 68-151

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 10 AF. Its most recent year on record, 2021, came in at 5 AF — 50% of that, and 3rd 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)
1981 35 13th lowest of 15 · 350% of median 179 0.1
1982 106 14th lowest of 15 · 1060% of median 160 2.0
2004 19 10th lowest of 15 · 190% of median 138 0.2
2010 30 12th lowest of 15 · 300% of median 58 0.7
2011 7 5th lowest of 15 · 70% of median 51 0.2
2012 9 7th lowest of 15 · 90% of median 67 0.2
2013 10 8th lowest of 15 · 100% of median 104 0.1
2014 7 5th lowest of 15 · 70% of median 83 0.1
2015 27 11th lowest of 15 · 270% of median 193 0.3
2016 5 3rd lowest of 15 · 50% of median 54 0.1
2017 16 9th lowest of 15 · 160% of median 76 0.1
2018 0 1st lowest of 15 · 0% of median 11 0.0
2019 184 15th lowest of 15 · 1840% of median 114 0.8
2020 1 2nd lowest of 15 · 10% of median 33 0.0
2021 5 3rd lowest of 15 · 50% of median 45 0.1

How good is our record of it?

Grade B (7/10 points) — the components below are the finding; the letter alone is not.

The rubric, component by component
CheckStateDetail
identity complete name, type, and water source all on file
decreed rights on file 1 right(s), seniority decoded
diversion record present 2156 measured days; currency unknown (no data-coverage date to compare against)
record continuity sparse 22% of the irrigation seasons in 1975-2021 carry measured days
published-record stability stable no upstream revisions recorded against this structure

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.