Hydrohistorian

← My Water  ·  Print / save as PDF

GRAHAM CREEK NO 1 DITCH

Structure dossier · WDID 3100533 · 1 · EAST CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 21:18 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 1884-12-31 — 306th most senior of the 1037 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: JOE S & CHAR B MACK IRG AP (1884-01-03). Immediately behind: GRAHAM CREEK NO 2 DITCH (1884-12-31).

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
12784.01884-12-311934-06-12 1.00.0 CIRR E-1

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 217 AF. Its most recent year on record, 2017, came in at 164 AF — 76% of that, and 4th 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)
2003 42 1st lowest of 15 · 19% of median 47 1.0
2004 139 2nd lowest of 15 · 64% of median 99 2.2
2005 182 5th lowest of 15 · 84% of median 126 1.5
2006 217 8th lowest of 15 · 100% of median 126 1.5
2007 315 13th lowest of 15 · 145% of median 153 1.9
2008 383 15th lowest of 15 · 176% of median 165 1.7
2009 183 6th lowest of 15 · 84% of median 112 1.2
2010 288 12th lowest of 15 · 133% of median 153 1.9
2011 357 14th lowest of 15 · 164% of median 142 2.1
2012 219 9th lowest of 15 · 101% of median 142 1.5
2013 187 7th lowest of 15 · 86% of median 129 1.1
2014 242 11th lowest of 15 · 112% of median 117 1.7
2015 234 10th lowest of 15 · 108% of median 170 1.2
2016 149 3rd lowest of 15 · 69% of median 141 1.1
2017 164 4th lowest of 15 · 76% of median 123 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.