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NEW MERCER DITCH

Structure dossier · WDID 0300913 · 1 · CACHE LA POUDRE RIVER · DWR record

Where this page's figures come from

Generated 2026-08-27 20:59 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 1861-06-01 — 7th most senior of the 2961 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: LARIMER COUNTY DITCH (1861-06-01). Immediately behind: LARIMER COUNTY NO 2 D (1861-06-01).

Decreed rights (40)

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
4170.01861-06-011882-04-11 0.00.0 CIRRMUNCOMINDRECFISFIRDOMSTKAUG
4179.01861-06-101882-04-11 0.00.0 CMUN
4443.01862-03-011882-04-11 0.00.0 CSTOIRRMUNCOMINDRECFISFIRDOMAUG
5372.01864-09-151882-04-11 0.00.0 CSTOIRRMUNCOMINDRECFISFIRDOMAUG
5579.01865-04-101882-04-11 0.00.0 AMUN
5579.01865-04-101882-04-11 0.00.0 CMUN
5600.01865-05-011882-04-11 0.00.0 CMUNALL
6026.01866-07-011882-04-11 0.00.0 CIRRMUNCOMINDRECFISFIRDOMSTKAUG
6483.01867-10-011882-04-11 7.030.0 CIRRMUNINDDOMAUG
6649.01868-03-151882-04-11 0.00.0 CSTOIRRMUNCOMINDRECFISFIRDOMAUG
6727.01868-06-011882-04-11 0.00.0 CIRRMUNCOMINDRECFISFIRDOMSTKAUG
7092.01869-06-011882-04-11 0.00.0 CIRRMUNCOMINDRECFISFIRDOMSTKAUG
7184.01869-09-011882-04-11 4.170.0 CIRRMUNINDDOMAUG
7599.01870-10-211882-04-11 0.00.0 CMUN
7761.01871-04-011882-04-11 0.00.0 CIRRMUNCOMINDRECFISFIRDOMSTKAUG
7953.01871-10-101882-04-11 8.330.0 CIRRMUNINDDOMAUG
8218.01872-07-011882-04-11 15.00.0 CIRRMUNINDDOMAUG
8237.01872-07-201882-04-11 0.00.0 CIRRMUNCOMINDRECFISFIRDOMSTKAUG
8480.01873-03-201882-04-11 0.00.0 CSTOIRRMUNCOMINDRECFISFIRDOMAUG
8492.01873-04-011882-04-11 0.00.0 CMUN
8645.01873-09-011882-04-11 0.00.0 CIRRMUNCOMINDRECFISFIRDOMSTKAUG
8659.01873-09-151882-04-11 0.00.0 CMUN
9236.01875-04-151882-04-11 0.00.0 AMUN
10318.01878-04-011882-04-11 0.00.0 CSTOIRRMUNCOMINDRECFISFIRDOMAUG
10788.01879-07-151882-04-11 0.00.0 CMUN
11003.01880-02-151882-04-11 50.470.0 CIRRMUNINDDOMAUG
11438.01881-04-251882-04-11 0.00.0 CSTOIRRMUNCOMINDRECFISFIRDOMAUG
15716.01893-01-101882-04-11 0.00.0 AMUN
21392.01908-07-271922-04-22 0.00.0 AMUN
23646.01914-09-281945-12-18 0.00.0 CALL
26409.236461914-09-281945-12-18 0.00.0 CSTOIRRMUNCOMINDRECFISFIRDOMAUG
35050.082181872-07-011953-09-10 0.00.0 CMUN
35050.084921873-04-011953-09-10 0.00.0 CMUN
35050.107361879-05-241953-09-10 0.00.0 CMUN
35050.110031880-02-151953-09-10 0.00.0 CMUN
46751.206691906-08-041978-12-31 0.00.0 AIRRMUNCOMINDRECFISFIRDOMSTKAUG
52217.01992-12-181992-12-31 0.00.0 CMUN
54786.542741998-08-062000-12-31 0.080.0 CIRRMUNCOMINDRECFISDOMAUGWLD
56224.02003-12-082003-12-31 0.00.0 CSTOIRRMUNCOMINDRECFISFIRDOMAUG
59161.02011-12-232011-12-31 0.00.0 CMUN

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 5,197 AF. Its most recent year on record, 2024, came in at 4,308 AF — 83% 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 4,734 6th lowest of 15 · 91% of median — 130 60.0
2011 5,800 14th lowest of 15 · 112% of median — 147 36.0
2012 5,260 10th lowest of 15 · 101% of median — 157 49.0
2013 2,102 1st lowest of 15 · 40% of median — 82 77.5
2014 2,563 2nd lowest of 15 · 49% of median — 100 39.7
2015 6,798 15th lowest of 15 · 131% of median — 159 58.9
2016 4,141 3rd lowest of 15 · 80% of median — 138 59.0
2017 4,734 6th lowest of 15 · 91% of median — 121 62.2
2018 5,222 9th lowest of 15 · 100% of median — 148 59.1
2019 5,310 11th lowest of 15 · 102% of median — 129 39.5
2020 5,420 12th lowest of 15 · 104% of median — 132 53.6
2021 4,283 4th lowest of 15 · 82% of median — 137 49.4
2022 5,197 8th lowest of 15 · 100% of median — 145 46.9
2023 5,435 13th lowest of 15 · 105% of median — 150 51.5
2024 4,308 5th lowest of 15 · 83% of median — 144 42.2

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.