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NORTH POUDRE SUPPLY CNL

Structure dossier · WDID 0300905 · DITCH · CACHE LA POUDRE RIVER · DWR record

Source DWR administrative record · verify at DWR structure ↗ Source DWR administrative record · verify at DWR diversion records ↗ Source Our computation, scored against a reference · scored against DWR's call analysis, see /methods

Where this page's figures come from

Generated 2026-10-13 02:15 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260928 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (dd58e60) — every figure regenerates from this named code version and data image.

The record and the river

Download this structure

Everything on this page as data you can work with — and a README that makes it citable: the HydroBase snapshot it was built from, the build commit, what every column means, the method behind each derived figure, and that method's stated limits.

⇩ Full record (.zip) Print / save as PDF

Or one table at a time: rights.csv · annual_use.csv · curtailment_now.csv · court_cases.csv · co_parties.csv · call_climatology.csv

What is in the bundle
  • rights.csv — every decreed right, most senior first, with admin numbers, dates, amounts, uses and case numbers.
  • annual_use.csv — recorded diversion by year, with releases accounted separately.
  • curtailment_now.csv — each right's current priority status and how often it was out across analog years.
  • court_cases.csv — the cases attached to its rights.
  • co_parties.csv — the other structures that were parties to those cases. Not available anywhere else.
  • call_climatology.csv — how often each right has been out of priority by week of season, with confidence intervals and the seasons the record could actually judge.
  • README.txt — provenance, methods, limits, disclaimer, and links back to DWR's own records for verification.

Where it sits

Location as DWR records it (diversion). Faint dots are the neighbouring water; click any to open it.

Current administration

● Junior rights called out — call at CANAL 3 DITCH (CACHE LA POUDRE RIVER, priority 1870-04-01).

● Junior rights called out — call at OGILVY DITCH (CACHE LA POUDRE RIVER, priority 1884-04-10).

● Junior rights called out — call at B H EATON DITCH (CACHE LA POUDRE RIVER, priority 1864-04-01).

Which of its rights are out of priority?

The outlook for the weeks ahead is not computable for this structure: no administrative call record for this basin. Today’s position is a separate question, and it is answered in Current administration above — that screen reads the district’s active calls and needs no reference gage.

Where it sits in line

Priority 1861-06-01 — 2nd most senior of the 2964 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: FORT COLLINS PIPELINE (1860-06-01). Immediately behind: POUDRE VALLEY CANAL (1861-06-01).

On MAINSTEM at river mile 102.1, it is 220th of 818 down the reach. Immediately upstream: GREYROCK SEC 31 STOCKWATER DVLPMNT. Immediately downstream: GREELEY MILTON SEAMAN INTAKE.

Position on the modelled network, not a claim about whose water this is — a stream carries water from many rights at once, and diverted water returns to it.

Decreed rights (57)

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. Alt-pointAn absolute amount decreed at another structure that may be diverted here instead -- an alternate point of diversion or an exchange. DWR calls this the APEX amount; a right showing 0.0 absolute but an alt-point amount is exercised here under another structure's decree. Decreed forWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on.Case
4170.00000 1861-06-011882-04-11 0.0 cfs 0.0 0.4233 cfs Irrigation, Municipal +8 05CW0323, 14CW3144 +2
4179.00000 1861-06-101882-04-11 0.0 cfs 0.0 1.21 cfs Municipal 08CW0277
4443.00000 1862-03-011882-04-11 0.0 cfs 0.0 1.1992 cfs Storage, Irrigation +8 18CW3076, 17CW3057 +3
5372.00000 1864-09-151882-04-11 0.0 cfs 0.0 1.5477 cfs Storage, Irrigation +8 18CW3076, 17CW3057 +3
5579.00000 1865-04-101882-04-11 0.0 AF 0.0 169.2 AF Municipal 09CW0282, 13CW3166
5579.00000 1865-04-101882-04-11 0.0 cfs 0.0 2.61 cfs Municipal 09CW0282, 13CW3166
5600.00000 1865-05-011882-04-11 0.0 cfs 0.0 3.5 cfs Irrigation, Municipal +8 17CW3160, 05CW0264
5600.00000 1865-05-011882-04-11 0.0 AF 0.0 440.2 AF Irrigation, Municipal +8 17CW3160, 05CW0264
6026.00000 1866-07-011882-04-11 0.0 cfs 0.0 1.2738 cfs Irrigation, Municipal +8 14CW3144, 05CW0323 +2
6483.00000 1867-10-011882-04-11 0.0 cfs 0.0 4.1967 cfs Irrigation, Municipal +1 92CW0129, W1424 +1
6649.00000 1868-03-151882-04-11 0.0 cfs 0.0 0.5197 cfs Storage, Irrigation +8 03CW0421, 07CW0190 +3
6727.00000 1868-06-011882-04-11 0.0 cfs 0.0 1.2738 cfs Irrigation, Municipal +8 14CW3144, 05CW0323 +2
7092.00000 1869-06-011882-04-11 0.0 cfs 0.0 0.9827 cfs Irrigation, Municipal +8 W1424, 92CW0129 +2
7184.00000 1869-09-011882-04-11 0.0 cfs 0.0 2.1967 cfs Irrigation, Municipal +1 05CW0323, 92CW0129 +1
7599.00000 1870-10-211882-04-11 0.0 cfs 0.0 1.49 cfs Municipal 08CW0277
7761.00000 1871-04-011882-04-11 0.0 cfs 0.0 18.6277 cfs Irrigation, Municipal +8 14CW3144, 92CW0129 +2
7953.00000 1871-10-101882-04-11 0.0 cfs 0.0 4.3882 cfs Irrigation, Municipal +1 W1424, 92CW0129 +1
8218.00000 1872-07-011882-04-11 0.0 cfs 0.0 7.6521 cfs Irrigation, Municipal +1 05CW0323, 92CW0129 +1
8237.00000 1872-07-201882-04-11 0.0 cfs 0.0 10.0618 cfs Irrigation, Municipal +8 92CW0129, 14CW3144 +1
8480.00000 1873-03-201882-04-11 0.0 cfs 0.0 0.4468 cfs Storage, Irrigation +8 07CW0190, 03CW0421 +3
8492.00000 1873-04-011882-04-11 0.0 cfs 0.0 107.4697 cfs Irrigation, Municipal +1 05CW0323, W1424 +1
8645.00000 1873-09-011882-04-11 0.0 cfs 0.0 34.3033 cfs Irrigation, Municipal +8 W1424, 05CW0323 +2
8659.00000 1873-09-151882-04-11 0.0 cfs 0.0 1.25 cfs Municipal 08CW0277
9236.00000 1875-04-151882-04-11 0.0 AF 0.0 849.5551 AF Municipal 05CW0323, 92CW0129
10318.00000 1878-04-011882-04-11 0.0 cfs 0.0 0.805 cfs Storage, Irrigation +8 03CW0421, 07CW0190 +3
10788.00000 1879-07-151882-04-11 0.0 cfs 0.0 1.31 cfs Municipal 08CW0277
10989.00000 1880-02-011882-04-11 0.0 cfs 0.0 200.0 cfs Irrigation W0560
11003.00000 1880-02-151882-04-11 0.0 cfs 0.0 34.3814 cfs Irrigation, Municipal +1 05CW0323, 92CW0129 +1
11438.00000 1881-04-251882-04-11 0.0 cfs 0.0 51.5796 cfs Storage, Irrigation +8 07CW0190, 03CW0421 +3
15716.00000 1893-01-101882-04-11 0.0 AF 0.0 285.1349 AF Municipal 05CW0323
21392.00000 1908-07-271922-04-22 0.0 AF 0.0 454.7655 AF Municipal 05CW0323, 92CW0129
23646.00000 1914-09-281945-12-18 0.0 cfs 0.0 3.183 cfs All beneficial uses 03CW0421
26409.23646 1914-09-281945-12-18 0.0 cfs 0.0 24.2709 cfs Storage, Irrigation +8 07CW0190, 17CW3057 +2
35050.08218 1872-07-011953-09-10 0.0 cfs 0.0 11.981 cfs Municipal 05CW0323, 92CW0129
35050.08492 1873-04-011953-09-10 0.0 cfs 0.0 96.7758 cfs Municipal 92CW0129, 05CW0323
35050.10736 1879-05-241953-09-10 0.0 cfs 0.0 40.5178 cfs Municipal 05CW0323, 92CW0129
35050.11003 1880-02-151953-09-10 0.0 cfs 0.0 59.2519 cfs Municipal 92CW0129, 05CW0323
35050.33979 1943-01-121953-09-10 250.0 cfs 0.0 — Irrigation CA11217, W3194
43829.33979 1943-01-121970-12-31 0.0 cfs 48.0 cfs — Irrigation W0105
46751.20669 1906-08-041978-12-31 0.0 AF 0.0 157.2291 AF Irrigation, Municipal +8 14CW3144, 05CW0323 +1
47604.00000 1980-05-021980-12-31 0.0 cfs 0.0 3000.0 cfs Storage 03CW0405
52210.00000 1992-12-111992-12-31 0.0 cfs 0.0 2565.0 cfs All beneficial uses 92CW0130
52217.00000 1992-12-181992-12-31 0.0 cfs 0.0 4156.0 cfs Storage, Irrigation +8 05CW0323, 92CW0129 +1
54274.00000 1998-08-061998-12-31 31.2 cfs 148.8 cfs — Irrigation, Municipal +4 20CW3157, 13CW3037 +1
54786.54274 1998-08-062000-12-31 0.0 cfs 180.0 cfs — Irrigation, Municipal +7 00CW0251
55152.00000 2000-12-312000-12-31 0.0 cfs 0.0 180.0 cfs Irrigation, Municipal +7 00CW0251
56224.00000 2003-12-082003-12-31 0.0 cfs 0.0 2409.6 cfs Storage, Irrigation +8 03CW0422, 03CW0421
57324.00000 2006-12-122006-12-31 0.0 cfs 0.0 100.0 cfs Municipal 06CW0259
57343.56757 2005-05-242007-12-31 0.0 cfs 0.0 10.2 cfs Municipal 07CW0328
57343.56798 2005-07-042007-12-31 0.0 cfs 0.0 10.0 cfs Municipal 07CW0328
57500.00000 2007-06-062007-12-31 0.0 cfs 0.0 500.0 cfs Municipal 07CW0125
57582.00000 2007-08-272007-12-31 0.0 cfs 0.0 350.0 cfs Municipal 07CW0190
57687.00000 2007-12-102007-12-31 0.0 cfs 0.0 479.8 cfs Municipal 07CW0328, 20CW3041
59161.00000 2011-12-232011-12-31 0.0 cfs 0.0 2389.0 cfs Municipal 11CW0265
60964.00000 2016-11-292016-12-31 0.0 cfs 0.0 250.0 cfs Municipal 16CW3169
61468.00000 2018-04-172018-12-31 0.0 cfs 0.0 4.0 cfs Irrigation, Municipal +8 18CW3076
62457.62218 2020-05-062021-12-31 0.0 cfs 21.4 cfs — Storage, Irrigation +2 21CW3104

Amounts marked cfs are flow rates; AF are stored volumes (storage rights are decreed in acre-feet). An absolute amount of 0.0 beside an alt-point amount is not a dead right: the water is decreed at another structure, and that row records permission to divert it here instead (an alternate point or exchange). A case listing several numbers reflects the original decree plus later change cases.

How much of this decree was in priority, by day

A right is in priority on a day when it is senior to every call administering this structure. Of its 281.2 cfs decreed rate, the average day over the last 6 year(s) had 281.2 cfs in priority (100% of the decree). No call in effect is a free river — that was 100.0% of days.

Calls are set and released at a time of day, not at midnight, so a day is counted by the hour: a call setting at 4pm costs that day a third of its rate, not all of it.

This is paper water. It is the decreed rate that was in priority — not water that was physically in the stream, and not water this structure diverted. A ditch can be in priority for 50 cfs on a day the creek carries five. What that distinction means →

YearMean in priority (Apr–Sep) Share of decreeFree-river days Days fully out
2026 281.2 cfs 100% 285 0
2025 281.2 cfs 100% 365 0
2024 281.2 cfs 100% 366 0
2023 281.2 cfs 100% 365 0
2022 281.2 cfs 100% 365 0
2021 281.2 cfs 100% 80 0
Show the last 120 days, day by day
DateIn priorityControlling call
2026-10-12 281.2 cfs (100%) free river — no call
2026-10-11 281.2 cfs (100%) free river — no call
2026-10-10 281.2 cfs (100%) free river — no call
2026-10-09 281.2 cfs (100%) free river — no call
2026-10-08 281.2 cfs (100%) free river — no call
2026-10-07 281.2 cfs (100%) free river — no call
2026-10-06 281.2 cfs (100%) free river — no call
2026-10-05 281.2 cfs (100%) free river — no call
2026-10-04 281.2 cfs (100%) free river — no call
2026-10-03 281.2 cfs (100%) free river — no call
2026-10-02 281.2 cfs (100%) free river — no call
2026-10-01 281.2 cfs (100%) free river — no call
2026-09-30 281.2 cfs (100%) free river — no call
2026-09-29 281.2 cfs (100%) free river — no call
2026-09-28 281.2 cfs (100%) free river — no call
2026-09-27 281.2 cfs (100%) free river — no call
2026-09-26 281.2 cfs (100%) free river — no call
2026-09-25 281.2 cfs (100%) free river — no call
2026-09-24 281.2 cfs (100%) free river — no call
2026-09-23 281.2 cfs (100%) free river — no call
2026-09-22 281.2 cfs (100%) free river — no call
2026-09-21 281.2 cfs (100%) free river — no call
2026-09-20 281.2 cfs (100%) free river — no call
2026-09-19 281.2 cfs (100%) free river — no call
2026-09-18 281.2 cfs (100%) free river — no call
2026-09-17 281.2 cfs (100%) free river — no call
2026-09-16 281.2 cfs (100%) free river — no call
2026-09-15 281.2 cfs (100%) free river — no call
2026-09-14 281.2 cfs (100%) free river — no call
2026-09-13 281.2 cfs (100%) free river — no call
2026-09-12 281.2 cfs (100%) free river — no call
2026-09-11 281.2 cfs (100%) free river — no call
2026-09-10 281.2 cfs (100%) free river — no call
2026-09-09 281.2 cfs (100%) free river — no call
2026-09-08 281.2 cfs (100%) free river — no call
2026-09-07 281.2 cfs (100%) free river — no call
2026-09-06 281.2 cfs (100%) free river — no call
2026-09-05 281.2 cfs (100%) free river — no call
2026-09-04 281.2 cfs (100%) free river — no call
2026-09-03 281.2 cfs (100%) free river — no call
2026-09-02 281.2 cfs (100%) free river — no call
2026-09-01 281.2 cfs (100%) free river — no call
2026-08-31 281.2 cfs (100%) free river — no call
2026-08-30 281.2 cfs (100%) free river — no call
2026-08-29 281.2 cfs (100%) free river — no call
2026-08-28 281.2 cfs (100%) free river — no call
2026-08-27 281.2 cfs (100%) free river — no call
2026-08-26 281.2 cfs (100%) free river — no call
2026-08-25 281.2 cfs (100%) free river — no call
2026-08-24 281.2 cfs (100%) free river — no call
2026-08-23 281.2 cfs (100%) free river — no call
2026-08-22 281.2 cfs (100%) free river — no call
2026-08-21 281.2 cfs (100%) free river — no call
2026-08-20 281.2 cfs (100%) free river — no call
2026-08-19 281.2 cfs (100%) free river — no call
2026-08-18 281.2 cfs (100%) free river — no call
2026-08-17 281.2 cfs (100%) free river — no call
2026-08-16 281.2 cfs (100%) free river — no call
2026-08-15 281.2 cfs (100%) free river — no call
2026-08-14 281.2 cfs (100%) free river — no call
2026-08-13 281.2 cfs (100%) free river — no call
2026-08-12 281.2 cfs (100%) free river — no call
2026-08-11 281.2 cfs (100%) free river — no call
2026-08-10 281.2 cfs (100%) free river — no call
2026-08-09 281.2 cfs (100%) free river — no call
2026-08-08 281.2 cfs (100%) free river — no call
2026-08-07 281.2 cfs (100%) free river — no call
2026-08-06 281.2 cfs (100%) free river — no call
2026-08-05 281.2 cfs (100%) free river — no call
2026-08-04 281.2 cfs (100%) free river — no call
2026-08-03 281.2 cfs (100%) free river — no call
2026-08-02 281.2 cfs (100%) free river — no call
2026-08-01 281.2 cfs (100%) free river — no call
2026-07-31 281.2 cfs (100%) free river — no call
2026-07-30 281.2 cfs (100%) free river — no call
2026-07-29 281.2 cfs (100%) free river — no call
2026-07-28 281.2 cfs (100%) free river — no call
2026-07-27 281.2 cfs (100%) free river — no call
2026-07-26 281.2 cfs (100%) free river — no call
2026-07-25 281.2 cfs (100%) free river — no call
2026-07-24 281.2 cfs (100%) free river — no call
2026-07-23 281.2 cfs (100%) free river — no call
2026-07-22 281.2 cfs (100%) free river — no call
2026-07-21 281.2 cfs (100%) free river — no call
2026-07-20 281.2 cfs (100%) free river — no call
2026-07-19 281.2 cfs (100%) free river — no call
2026-07-18 281.2 cfs (100%) free river — no call
2026-07-17 281.2 cfs (100%) free river — no call
2026-07-16 281.2 cfs (100%) free river — no call
2026-07-15 281.2 cfs (100%) free river — no call
2026-07-14 281.2 cfs (100%) free river — no call
2026-07-13 281.2 cfs (100%) free river — no call
2026-07-12 281.2 cfs (100%) free river — no call
2026-07-11 281.2 cfs (100%) free river — no call
2026-07-10 281.2 cfs (100%) free river — no call
2026-07-09 281.2 cfs (100%) free river — no call
2026-07-08 281.2 cfs (100%) free river — no call
2026-07-07 281.2 cfs (100%) free river — no call
2026-07-06 281.2 cfs (100%) free river — no call
2026-07-05 281.2 cfs (100%) free river — no call
2026-07-04 281.2 cfs (100%) free river — no call
2026-07-03 281.2 cfs (100%) free river — no call
2026-07-02 281.2 cfs (100%) free river — no call
2026-07-01 281.2 cfs (100%) free river — no call
2026-06-30 281.2 cfs (100%) free river — no call
2026-06-29 281.2 cfs (100%) free river — no call
2026-06-28 281.2 cfs (100%) free river — no call
2026-06-27 281.2 cfs (100%) free river — no call
2026-06-26 281.2 cfs (100%) free river — no call
2026-06-25 281.2 cfs (100%) free river — no call
2026-06-24 281.2 cfs (100%) free river — no call
2026-06-23 281.2 cfs (100%) free river — no call
2026-06-22 281.2 cfs (100%) free river — no call
2026-06-21 281.2 cfs (100%) free river — no call
2026-06-20 281.2 cfs (100%) free river — no call
2026-06-19 281.2 cfs (100%) free river — no call
2026-06-18 281.2 cfs (100%) free river — no call
2026-06-17 281.2 cfs (100%) free river — no call
2026-06-16 281.2 cfs (100%) free river — no call
2026-06-15 281.2 cfs (100%) free river — no call
How this is worked out, and what it cannot tell you
  • This is a decreed rate that was in priority -- paper water, not water that was available or diverted.
  • Augmentation plans, exchanges and substitute supply plans let a structure divert lawfully while out of priority; none are modelled.
  • Calls on the river this source flows into are included without a position test, so curtailment can be over-reported where the calling point sits above the confluence.
  • DWR's administration is the authority. Scored against DWR's own call analysis, this method agreed on 95.5% of 85,822 structure-days (2026-08-29).
  • Calls considered for this structure: 0.

Recorded use (last 15 years on record)

Years far under the decreed amount? That gap has a name — paper water vs. wet water, explained on this structure.

In a median year this structure has a recorded diversion of 37,069 AF. Its most recent year on record, 2025, came in at 52,622 AF — 142% of that, and 15th 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)
2011 37,176 9th lowest of 15 · 100% of median 214 210.0
2012 36,699 7th lowest of 15 · 99% of median 136 219.2
2013 21,440 1st lowest of 15 · 58% of median 132 230.0
2014 29,354 2nd lowest of 15 · 79% of median 167 231.7
2015 31,786 3rd lowest of 15 · 86% of median 180 213.0
2016 35,612 5th lowest of 15 · 96% of median 199 207.0
2017 45,938 14th lowest of 15 · 124% of median 214 287.9
2018 37,799 10th lowest of 15 · 102% of median 210 187.0
2019 37,069 8th lowest of 15 · 100% of median 213 209.0
2020 41,254 13th lowest of 15 · 111% of median 206 221.8
2021 35,905 6th lowest of 15 · 97% of median 207 198.0
2022 35,509 4th lowest of 15 · 96% of median 213 207.0
2023 39,831 12th lowest of 15 · 108% of median 216 204.5
2024 38,997 11th lowest of 15 · 105% of median 274 236.0
2025 52,622 15th lowest of 15 · 142% of median 304 314.0

How good is our record of it?

Grade A (9/10 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 57 right(s), seniority decoded
diversion record current 10825 measured days, newest 331 day(s) before the data's end (DWR publishes ~1 year in arrears)
record continuity patchy 71% of the irrigation seasons in 1954-2025 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.

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