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MASON EDDY DITCH

Structure dossier · WDID 7200766 · 1 · MESA CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 21:10 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 1884-11-30 — 10th most senior of the 2166 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: BOWEN DIVERSION POINT (1884-10-24). Immediately behind: GRAPEVINE DITCH (1885-01-13).

Decreed rights (5)

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
12753.01884-11-301890-02-07 4.0320.0 CIRRMUNINDFIRDOMPWR 42
30895.127241884-11-011941-07-25 1.950.0 CIRRMUNINDFIRDOMPWR DOM7
30895.24261916-06-031941-07-25 0.740.0 CIRRMUNINDFIRDOMPWR 427
32811.01939-11-011941-07-25 2.120.0 CIRRMUNINDFIRDOMPWR 610
49637.01985-11-251985-12-31 0.00.0 AAUG

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 762 AF. Its most recent year on record, 2024, came in at 659 AF — 86% of that, and 5th 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)
2010 27 1st lowest of 15 · 4% of median — 30 1.9
2011 1,427 14th lowest of 15 · 187% of median — 296 6.9
2012 1,492 15th lowest of 15 · 196% of median — 361 5.8
2013 1,154 13th lowest of 15 · 151% of median — 277 10.8
2014 677 6th lowest of 15 · 89% of median — 205 4.8
2015 472 3rd lowest of 15 · 62% of median 41 365 3.8
2016 485 4th lowest of 15 · 64% of median — 366 8.0
2017 762 8th lowest of 15 · 100% of median 44 365 3.0
2018 856 11th lowest of 15 · 112% of median 73 365 5.5
2019 352 2nd lowest of 15 · 46% of median — 365 4.0
2020 1,031 12th lowest of 15 · 135% of median 93 366 6.0
2021 716 7th lowest of 15 · 94% of median — 304 4.5
2022 767 9th lowest of 15 · 101% of median 81 118 5.0
2023 778 10th lowest of 15 · 102% of median 95 146 5.5
2024 659 5th lowest of 15 · 86% of median 122 124 5.5

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.