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UPPER RIVER DITCH

Structure dossier · WDID 1100519 · 1 · ARKANSAS RIVER · DWR record

Where this page's figures come from

Generated 2026-08-27 21:19 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 1879-05-15 — 139th most senior of the 1489 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: SMITH DITCH (LAKE FORK) (1879-05-01). Immediately behind: YOUNGER DITCH NO 2 (1879-05-15).

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
10727.01879-05-151901-01-31 14.00.0 CIRR 69A
55493.02001-12-072001-12-31 0.00.0 CALL

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 1,149 AF. Its most recent year on record, 2012, came in at 1,152 AF — 100% of that, and 9th lowest of the 15 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)
1994 2,665 12th lowest of 15 · 232% of median — 191 13.1
1995 3,741 15th lowest of 15 · 326% of median — 151 14.0
1996 2,749 13th lowest of 15 · 239% of median — 146 14.0
1997 3,145 14th lowest of 15 · 274% of median — 131 14.0
1998 1,155 10th lowest of 15 · 100% of median — 111 14.0
1999 2,097 11th lowest of 15 · 182% of median — 131 14.0
2000 921 6th lowest of 15 · 80% of median — 75 10.0
2001 0 1st lowest of 15 · 0% of median — 124 0.0
2002 188 2nd lowest of 15 · 16% of median — 64 2.0
2003 810 4th lowest of 15 · 70% of median — 166 5.1
2008 890 5th lowest of 15 · 78% of median — 219 3.2
2009 475 3rd lowest of 15 · 41% of median — 305 2.7
2010 1,066 7th lowest of 15 · 93% of median — 181 8.0
2011 1,149 8th lowest of 15 · 100% of median 1,149 165 5.0
2012 1,152 9th lowest of 15 · 100% of median 1,152 184 8.0

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.