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MAYBELL CANAL

Structure dossier · WDID 4400694 · DITCH · YAMPA 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 16:23 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.

Where this structure is measured

GageFlowing nowRecordHow we know
MAYBELL CANAL 4400694A 96.6 cfs 2024–2026, 800 days DWR telemetry mapping

A green link is DWR's own: either its telemetry inventory maps this WDID to that station, or the station is named for this WDID (0700553 → 0700553A). An amber one is ours — the station sits within 250 m and shares a distinctive word with this structure's name, which is a strong hint rather than a DWR statement that this gage meters this structure. Wrong? Tell us.

Flowing now

96.6 cfs as of 2026-10-13 14:45 (1.6 h ago)

Provisional 15-minute telemetry from 4400694A ↗ (MAYBELL CANAL). Raw, not the approved record — it is never merged into the diversion history below. DWR publishes the official diversion record after the water year closes and is approved, which is why that record ends months back while this reads minutes ago.

In short

MAYBELL CANAL holds 3 decreed rights on YAMPA RIVER. No call currently reaches it that we can lawfully attribute, so none of its rights are being curtailed by one. 8 further calls state no district and sit outside this one, so they are counted here rather than assumed either way. In a median year over its last 15 recorded years it diverts 18,199 acre-feet.

Assembled from the figures on this page — every number above is checked against them before it is shown (4 checked). The detail, with its method, is in the cards below.

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

● In priority — no active call senior to this structure's rights affects its district (8 active call(s) checked).

8 further calls state no district and sit outside this one, so they are counted here rather than assumed either way.

Which of its rights are out of priority?

No active call verifiably reaches this structure (8 active call(s) checked), so none of its 3 rights is administratively curtailed today. (8 call(s) state no district and sit outside this one — not judged, not assumed.) In the 5 past years most like this one (2020, 2025, 2024, 2019, 2018), 0 of the rights shown below were out at least one week in at least one analog year.

Right (priority)NowAnalog years outMajority out by
1899-10-02 26810 — 0 of 5 —
1946-04-15 40421 — 0 of 5 —
1901-06-01 60996 — 0 of 5 —
How this table is built, and what it is not

“Now” compares each right's admin number with today's most senior applicable active call. The outlook uses flows at YAMPA RIVER NEAR MAYBELL, CO around 2026-10-02 (the newest reading on file) — currently 50% of that gage's own median for this window — to pick the 5 most similar past years with complete administration records (2018–2026). Only calls that verifiably apply count: DWR's own district statements in the call's set comments, a caller located in this district, or — on the same stream, where DWR records both stream miles (measured from the mouth) — a caller DOWNSTREAM of this structure. An upstream senior cannot demand water this diversion never deprives it of. Calls that state nothing and sit elsewhere are counted as unjudged rather than assumed, which also means the verified record is shorter than the raw one: early calls rarely state districts. For each week it finds the most senior call then in force; a right is out in that week exactly when that call is senior to it, which is why one line prices every right and juniors can be out while seniors keep diverting. “Majority out by” is the first week out in more than half the analog years. A frequency among named historical years, not a probability from a model, and not a forecast of what the division engineer will do. It says how often years whose flow resembled this one were under a call senior to this right in a given week. Snowpack, storage, and the actual administrative decisions of a given season are not modelled. Check the analog years listed: if they do not resemble this year to you, the outlook does not either.

Where it sits in line

Priority 1899-10-02 — 439th most senior of the 3562 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: CARLOS DITCH (1900-06-01). Immediately behind: SIEVER WELL (1924-06-01).

On MAINSTEM at river mile 78.2, it is 252nd of 372 down the reach. Immediately upstream: SHAW RESERVOIR #1. Immediately downstream: GREEN PUMP DIV ALT PT.

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 (3)

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
26810.18172 1899-10-021923-12-08 42.2 cfs 0.0 — Irrigation A102
40421.35168 1946-04-151972-05-30 86.8 cfs 0.0 — Irrigation 16
60996.18779 1901-06-012017-12-31 20.0 cfs 0.0 — Stock 17CW0013

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 149.0 cfs decreed rate, the average day over the last 6 year(s) had 148.081 cfs in priority (99% of the decree). No call in effect is a free river — that was 98.8% of days.

On 21 days some rights were in priority and others were not — seniority splits a decree rather than switching it off. 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. A call began or ended mid-day on 4 of these days.

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 140.17 cfs 94% 268 0
2025 148.66 cfs 100% 361 0
2024 149.0 cfs 100% 366 0
2023 149.0 cfs 100% 365 0
2022 149.0 cfs 100% 365 0
2021 149.0 cfs 100% 80 0
Show the last 120 days, day by day
DateIn priorityControlling call
2026-10-12 149.0 cfs (100%) free river — no call
2026-10-11 149.0 cfs (100%) free river — no call
2026-10-10 149.0 cfs (100%) free river — no call
2026-10-09 149.0 cfs (100%) free river — no call
2026-10-08 149.0 cfs (100%) free river — no call
2026-10-07 149.0 cfs (100%) free river — no call
2026-10-06 149.0 cfs (100%) free river — no call
2026-10-05 149.0 cfs (100%) free river — no call
2026-10-04 149.0 cfs (100%) free river — no call
2026-10-03 149.0 cfs (100%) free river — no call
2026-10-02 149.0 cfs (100%) free river — no call
2026-10-01 149.0 cfs (100%) free river — no call
2026-09-30 149.0 cfs (100%) free river — no call
2026-09-29 149.0 cfs (100%) free river — no call
2026-09-28 149.0 cfs (100%) free river — no call
2026-09-27 149.0 cfs (100%) free river — no call
2026-09-26 149.0 cfs (100%) free river — no call
2026-09-25 149.0 cfs (100%) free river — no call
2026-09-24 149.0 cfs (100%) free river — no call
2026-09-23 149.0 cfs (100%) free river — no call
2026-09-22 149.0 cfs (100%) free river — no call
2026-09-21 149.0 cfs (100%) free river — no call
2026-09-20 149.0 cfs (100%) free river — no call
2026-09-19 149.0 cfs (100%) free river — no call
2026-09-18 149.0 cfs (100%) free river — no call
2026-09-17 149.0 cfs (100%) free river — no call
2026-09-16 149.0 cfs (100%) free river — no call
2026-09-15 149.0 cfs (100%) free river — no call
2026-09-14 149.0 cfs (100%) free river — no call
2026-09-13 149.0 cfs (100%) free river — no call
2026-09-12 149.0 cfs (100%) free river — no call
2026-09-11 149.0 cfs (100%) free river — no call
2026-09-10 149.0 cfs (100%) free river — no call
2026-09-09 149.0 cfs (100%) free river — no call
2026-09-08 149.0 cfs (100%) free river — no call
2026-09-07 149.0 cfs (100%) free river — no call
2026-09-06 149.0 cfs (100%) free river — no call
2026-09-05 149.0 cfs (100%) free river — no call
2026-09-04 141.5 cfs (95%) LILY PARK DITCH NO 1 PUMP STATION NO 1, 1960-09-01 · part of the day (38%) · Yampa River · same source, at or above the calling point
2026-09-03 89.217 cfs (60%) LILY PARK DITCH NO 1 PUMP STATION NO 1, 1923-05-28 · Yampa River · same source, at or above the calling point
2026-09-02 42.2 cfs (28%) LILY PARK DITCH NO 1 PUMP STATION NO 1, 1923-05-28 · Yampa River · same source, at or above the calling point
2026-09-01 42.2 cfs (28%) LILY PARK DITCH NO 1 PUMP STATION NO 1, 1923-05-28 · Yampa River · same source, at or above the calling point
2026-08-31 42.2 cfs (28%) LILY PARK DITCH NO 1 PUMP STATION NO 1, 1923-05-28 · Yampa River · same source, at or above the calling point
2026-08-30 42.2 cfs (28%) LILY PARK DITCH NO 1 PUMP STATION NO 1, 1923-05-28 · Yampa River · same source, at or above the calling point
2026-08-29 42.2 cfs (28%) LILY PARK DITCH NO 1 PUMP STATION NO 1, 1923-05-28 · Yampa River · same source, at or above the calling point
2026-08-28 42.2 cfs (28%) LILY PARK DITCH NO 1 PUMP STATION NO 1, 1923-05-28 · Yampa River · same source, at or above the calling point
2026-08-27 42.2 cfs (28%) LILY PARK DITCH NO 1 PUMP STATION NO 1, 1923-05-28 · Yampa River · same source, at or above the calling point
2026-08-26 42.2 cfs (28%) LILY PARK DITCH NO 1 PUMP STATION NO 1, 1923-05-28 · Yampa River · same source, at or above the calling point
2026-08-25 42.2 cfs (28%) LILY PARK DITCH NO 1 PUMP STATION NO 1, 1923-05-28 · Yampa River · same source, at or above the calling point
2026-08-24 42.2 cfs (28%) LILY PARK DITCH NO 1 PUMP STATION NO 1, 1923-05-28 · Yampa River · same source, at or above the calling point
2026-08-23 42.2 cfs (28%) LILY PARK DITCH NO 1 PUMP STATION NO 1, 1923-05-28 · Yampa River · same source, at or above the calling point
2026-08-22 42.2 cfs (28%) LILY PARK DITCH NO 1 PUMP STATION NO 1, 1923-05-28 · Yampa River · same source, at or above the calling point
2026-08-21 42.2 cfs (28%) LILY PARK DITCH NO 1 PUMP STATION NO 1, 1923-05-28 · Yampa River · same source, at or above the calling point
2026-08-20 42.2 cfs (28%) LILY PARK DITCH NO 1 PUMP STATION NO 1, 1923-05-28 · Yampa River · same source, at or above the calling point
2026-08-19 95.6 cfs (64%) LILY PARK DITCH NO 1 PUMP STATION NO 1, 1923-05-28 · part of the day (50%) · Yampa River · same source, at or above the calling point
2026-08-18 149.0 cfs (100%) free river — no call
2026-08-17 149.0 cfs (100%) free river — no call
2026-08-16 149.0 cfs (100%) free river — no call
2026-08-15 149.0 cfs (100%) free river — no call
2026-08-14 149.0 cfs (100%) free river — no call
2026-08-13 149.0 cfs (100%) free river — no call
2026-08-12 149.0 cfs (100%) free river — no call
2026-08-11 149.0 cfs (100%) free river — no call
2026-08-10 149.0 cfs (100%) free river — no call
2026-08-09 149.0 cfs (100%) free river — no call
2026-08-08 149.0 cfs (100%) free river — no call
2026-08-07 149.0 cfs (100%) free river — no call
2026-08-06 149.0 cfs (100%) free river — no call
2026-08-05 149.0 cfs (100%) free river — no call
2026-08-04 149.0 cfs (100%) free river — no call
2026-08-03 149.0 cfs (100%) free river — no call
2026-08-02 149.0 cfs (100%) free river — no call
2026-08-01 149.0 cfs (100%) free river — no call
2026-07-31 149.0 cfs (100%) free river — no call
2026-07-30 149.0 cfs (100%) free river — no call
2026-07-29 149.0 cfs (100%) free river — no call
2026-07-28 149.0 cfs (100%) free river — no call
2026-07-27 149.0 cfs (100%) free river — no call
2026-07-26 149.0 cfs (100%) free river — no call
2026-07-25 149.0 cfs (100%) free river — no call
2026-07-24 149.0 cfs (100%) free river — no call
2026-07-23 149.0 cfs (100%) free river — no call
2026-07-22 149.0 cfs (100%) free river — no call
2026-07-21 149.0 cfs (100%) free river — no call
2026-07-20 149.0 cfs (100%) free river — no call
2026-07-19 149.0 cfs (100%) free river — no call
2026-07-18 149.0 cfs (100%) free river — no call
2026-07-17 149.0 cfs (100%) free river — no call
2026-07-16 149.0 cfs (100%) free river — no call
2026-07-15 149.0 cfs (100%) free river — no call
2026-07-14 149.0 cfs (100%) free river — no call
2026-07-13 149.0 cfs (100%) free river — no call
2026-07-12 149.0 cfs (100%) free river — no call
2026-07-11 149.0 cfs (100%) free river — no call
2026-07-10 149.0 cfs (100%) free river — no call
2026-07-09 149.0 cfs (100%) free river — no call
2026-07-08 149.0 cfs (100%) free river — no call
2026-07-07 149.0 cfs (100%) free river — no call
2026-07-06 149.0 cfs (100%) free river — no call
2026-07-05 149.0 cfs (100%) free river — no call
2026-07-04 149.0 cfs (100%) free river — no call
2026-07-03 149.0 cfs (100%) free river — no call
2026-07-02 149.0 cfs (100%) free river — no call
2026-07-01 149.0 cfs (100%) free river — no call
2026-06-30 149.0 cfs (100%) free river — no call
2026-06-29 149.0 cfs (100%) free river — no call
2026-06-28 149.0 cfs (100%) free river — no call
2026-06-27 149.0 cfs (100%) free river — no call
2026-06-26 149.0 cfs (100%) free river — no call
2026-06-25 149.0 cfs (100%) free river — no call
2026-06-24 149.0 cfs (100%) free river — no call
2026-06-23 149.0 cfs (100%) free river — no call
2026-06-22 149.0 cfs (100%) free river — no call
2026-06-21 149.0 cfs (100%) free river — no call
2026-06-20 149.0 cfs (100%) free river — no call
2026-06-19 149.0 cfs (100%) free river — no call
2026-06-18 149.0 cfs (100%) free river — no call
2026-06-17 149.0 cfs (100%) free river — no call
2026-06-16 149.0 cfs (100%) free river — no call
2026-06-15 149.0 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: 10.

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 18,199 AF. Its most recent year on record, 2024, came in at 18,199 AF — 100% of that, and 8th 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)
2010 16,258 5th lowest of 15 · 89% of median 162 73.3
2011 20,828 12th lowest of 15 · 114% of median 184 71.1
2012 19,876 10th lowest of 15 · 109% of median 200 88.3
2013 19,209 9th lowest of 15 · 106% of median 210 66.8
2014 21,545 14th lowest of 15 · 118% of median 183 82.6
2015 24,062 15th lowest of 15 · 132% of median 207 104.8
2016 16,270 6th lowest of 15 · 89% of median 162 66.8
2017 12,392 2nd lowest of 15 · 68% of median 144 75.0
2018 14,142 3rd lowest of 15 · 78% of median 190 55.0
2019 14,422 4th lowest of 15 · 79% of median 128 81.0
2020 9,278 1st lowest of 15 · 51% of median 114 55.0
2021 21,259 13th lowest of 15 · 117% of median 229 95.0
2022 20,347 11th lowest of 15 · 112% of median 219 75.0
2023 16,493 7th lowest of 15 · 91% of median 151 80.0
2024 18,199 8th lowest of 15 · 100% of median 192 89.0

Call-derived yield: senior right divertible 15.0% of a median season / 2.3% dry-year.

How good is our record of it?

Grade B (8/10 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 3 right(s), seniority decoded
diversion record stale 13009 measured days, but newest is 701 day(s) before the data's end (target 450)
record continuity patchy 62% of the irrigation seasons in 1927-2024 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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