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SCHOOL WW DITCH NO 2

Structure dossier · WDID 4702028 · 1 · MICHIGAN RIVER · DWR record

Where this page's figures come from

Generated 2026-08-28 03:51 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 1972-05-01 — 812th most senior of the 1262 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: WYATT REDI MIX CONCRETE DITCH (1963-05-01). Immediately behind: JULSON SPRING 1 (1975-12-15).

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
46751.446811972-05-011978-12-31 1.50.0 CIRR

Recorded use (last 14 years on record)

In a median year this structure has a recorded diversion of 36 AF. Its most recent year on record, 2013, came in at 35 AF — 97% of that, and 7th lowest of the 14 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)
1985 50 12th lowest of 14 · 139% of median 51 0.5
1986 45 10th lowest of 14 · 125% of median 47 0.5
1987 14 2nd lowest of 14 · 39% of median 16 0.5
1988 21 3rd lowest of 14 · 58% of median 23 0.5
1989 8 1st lowest of 14 · 22% of median 9 0.5
1990 27 5th lowest of 14 · 75% of median 29 0.5
1991 21 3rd lowest of 14 · 58% of median 23 0.5
2003 37 8th lowest of 14 · 103% of median 28 1.0
2007 145 14th lowest of 14 · 403% of median 53 2.5
2008 37 8th lowest of 14 · 103% of median 36 0.8
2009 32 6th lowest of 14 · 89% of median 49 0.5
2010 47 11th lowest of 14 · 131% of median 43 1.0
2011 61 13th lowest of 14 · 169% of median 51 1.0
2013 35 7th lowest of 14 · 97% of median 36 0.5

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 494 measured days; currency unknown (no data-coverage date to compare against)
record continuity sparse 8% of the irrigation seasons in 1985-2013 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.