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FORT LYON CANAL

Structure dossier · WDID 1700553 · DITCH · ARKANSAS 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 2026-10-12 09:50 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
FORT LYON CANAL FLYCANCO 165.0 cfs 1985–2026, 13,628 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

165.0 cfs as of 2026-10-12 08:45 (1.1 h ago)

Provisional 15-minute telemetry from FLYCANCO ↗ (FORT LYON 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

FORT LYON CANAL holds 7 decreed rights on ARKANSAS RIVER. As of 2026-09-27, 2 of them are out of priority under a call at admin 20186.17015 placed by JOHN MARTIN RESERVOIR. Its 5 most senior rights, back to 1884-04-15, keep diverting. 12 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 174,949 acre-feet. It was a party to 1 court cases that also touched 2 other structures.

Assembled from the figures on this page — every number above is checked against them before it is shown (11 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

● Junior rights called out — call at ARKANSAS RIVER COMPACT(COLORADO-KANSAS STATE LINE) (ARKANSAS RIVER, priority 1949-05-30).

● Junior rights called out — call at JOHN MARTIN RESERVOIR (ARKANSAS RIVER, priority 1905-04-07).

Which of its rights are out of priority?

Under today's controlling call (JOHN MARTIN RESERVOIR, priority 1905-04-07): 2 of this structure's 7 rights are out of priority now. (12 call(s) state no district and sit outside this one — not judged, not assumed.) In the 5 past years most like this one (2023, 2022, 2019, 2016, 2018), 6 of the rights shown below were out at least one week in at least one analog year.

Right (priority)NowAnalog years outMajority out by
1884-04-15 12524 ● in priority 0 of 5 —
1887-03-01 13574 ● in priority 5 of 5 2026-09-27
1889-08-12 14469 ● in priority 5 of 5 2026-09-27
1893-08-31 15949 ● in priority 5 of 5 2026-09-27
1896-08-01 20186 ● in priority 5 of 5 2026-09-27
1980-04-24 47596 ● out 5 of 5 2026-09-27
1980-04-24 51134 ● out 5 of 5 2026-09-27
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 CATLIN AUGMENTATION STATION AT CROOKED ARROYO around 2026-09-27 (the newest reading on file) — currently 0% of that gage's own median for this window — to pick the 5 most similar past years with complete administration records (2005–2026). 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 1884-04-15 — 9th most senior of the 1909 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: LAKE MEREDITH (1881-03-10). Immediately behind: FORT LYON STORAGE CANAL (1884-04-15).

On MAINSTEM at river mile 65.5, it is 287th of 458 down the reach. Immediately upstream: 1713383. Immediately downstream: 1713385.

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 (8)

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
12524.00000 1884-04-151905-04-08 164.64 cfs 0.0 — Irrigation, Commercial +2 4
13574.00000 1887-03-011905-04-08 597.16 cfs 0.0 — Irrigation, Commercial +1 6
14469.00000 1889-08-121905-04-08 355.2 cfs 0.0 — Storage R1
15949.00000 1893-08-311905-04-08 171.2 cfs 0.0 — Irrigation, Commercial +1 25
20186.17015 1896-08-011927-02-03 1150.0 cfs 0.0 — Storage R6
47596.00000 1980-04-241990-12-31 0.0 AF 0.0 15228.95 AF Irrigation 90CW0047
47596.00000 1980-04-241990-12-31 0.0 cfs 0.0 544.0 cfs Irrigation 90CW0047
51134.47596 1980-04-241990-12-31 0.0 cfs 0.0 606.0 cfs Irrigation 90CW0047

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 2438.2 cfs decreed rate, the average day over the last 6 year(s) had 997.953 cfs in priority (41% of the decree). No call in effect is a free river — that was 0.0% of days.

On 897 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.

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 43.78 cfs 2% 0 141
2025 165.01 cfs 7% 0 77
2024 448.53 cfs 18% 0 0
2023 596.4 cfs 24% 0 5
2022 221.36 cfs 9% 0 93
2021 1479.99 cfs 61% 0 1
Show the last 120 days, day by day
DateIn priorityControlling call
2026-10-11 0.0 cfs (0%) SUNNYSIDE PARK DITCH, 1884-01-03 · Arkansas River · same source, at or above the calling point
2026-10-10 0.0 cfs (0%) SUNNYSIDE PARK DITCH, 1884-01-03 · Arkansas River · same source, at or above the calling point
2026-10-09 0.0 cfs (0%) SUNNYSIDE PARK DITCH, 1884-01-03 · Arkansas River · same source, at or above the calling point
2026-10-08 0.0 cfs (0%) SUNNYSIDE PARK DITCH, 1884-01-03 · Arkansas River · same source, at or above the calling point
2026-10-07 0.0 cfs (0%) SUNNYSIDE PARK DITCH, 1884-01-03 · Arkansas River · same source, at or above the calling point
2026-10-06 0.0 cfs (0%) SUNNYSIDE PARK DITCH, 1884-01-03 · Arkansas River · same source, at or above the calling point
2026-10-05 0.0 cfs (0%) SUNNYSIDE PARK DITCH, 1884-01-03 · Arkansas River · same source, at or above the calling point
2026-10-04 0.0 cfs (0%) SUNNYSIDE PARK DITCH, 1884-01-03 · Arkansas River · same source, at or above the calling point
2026-10-03 0.0 cfs (0%) SUNNYSIDE PARK DITCH, 1884-01-03 · Arkansas River · same source, at or above the calling point
2026-10-02 0.0 cfs (0%) SUNNYSIDE PARK DITCH, 1884-01-03 · Arkansas River · same source, at or above the calling point
2026-10-01 0.0 cfs (0%) SUNNYSIDE PARK DITCH, 1884-01-03 · Arkansas River · same source, at or above the calling point
2026-09-30 0.0 cfs (0%) SUNNYSIDE PARK DITCH, 1884-01-03 · Arkansas River · same source, at or above the calling point
2026-09-29 0.0 cfs (0%) SUNNYSIDE PARK DITCH, 1884-01-03 · Arkansas River · same source, at or above the calling point
2026-09-28 0.0 cfs (0%) SUNNYSIDE PARK DITCH, 1884-01-03 · Arkansas River · same source, at or above the calling point
2026-09-27 0.0 cfs (0%) SUNNYSIDE PARK DITCH, 1884-01-03 · Arkansas River · same source, at or above the calling point
2026-09-26 0.0 cfs (0%) SUNNYSIDE PARK DITCH, 1884-01-03 · Arkansas River · same source, at or above the calling point
2026-09-25 0.0 cfs (0%) SUNNYSIDE PARK DITCH, 1884-01-03 · Arkansas River · same source, at or above the calling point
2026-09-24 0.0 cfs (0%) SUNNYSIDE PARK DITCH, 1884-01-03 · Arkansas River · same source, at or above the calling point
2026-09-23 6.86 cfs (0%) BESSEMER DITCH, 1882-03-31 · Arkansas River · same source, at or above the calling point
2026-09-22 0.0 cfs (0%) SOUTH CANON DITCH, 1880-10-01 · Arkansas River · same source, at or above the calling point
2026-09-21 0.0 cfs (0%) ROCKY FORD DITCH, 1875-12-31 · Arkansas River · same source, at or above the calling point
2026-09-20 0.0 cfs (0%) ROCKY FORD DITCH, 1875-12-31 · Arkansas River · same source, at or above the calling point
2026-09-19 0.0 cfs (0%) ROCKY FORD DITCH, 1875-12-31 · Arkansas River · same source, at or above the calling point
2026-09-18 0.0 cfs (0%) CANON CITY & OIL CREEK, 1867-05-31 · Arkansas River · same source, at or above the calling point
2026-09-17 0.0 cfs (0%) CANON CITY & OIL CREEK, 1867-05-31 · Arkansas River · same source, at or above the calling point
2026-09-16 0.0 cfs (0%) CANON CITY & OIL CREEK, 1867-05-31 · Arkansas River · same source, at or above the calling point
2026-09-15 0.0 cfs (0%) CANON CITY & OIL CREEK, 1867-05-31 · Arkansas River · same source, at or above the calling point
2026-09-14 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-09-13 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-09-12 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-09-11 0.0 cfs (0%) BESSEMER DITCH, 1867-01-08 · Arkansas River · same source, at or above the calling point
2026-09-10 0.0 cfs (0%) BESSEMER DITCH, 1867-01-08 · Arkansas River · same source, at or above the calling point
2026-09-09 0.0 cfs (0%) BESSEMER DITCH, 1867-01-08 · Arkansas River · same source, at or above the calling point
2026-09-08 0.0 cfs (0%) BESSEMER DITCH, 1867-01-08 · Arkansas River · same source, at or above the calling point
2026-09-07 0.0 cfs (0%) BESSEMER DITCH, 1867-01-08 · Arkansas River · same source, at or above the calling point
2026-09-06 0.0 cfs (0%) ROCKY FORD HIGHLINE, 1869-07-01 · Arkansas River · same source, at or above the calling point
2026-09-05 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-09-04 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-09-03 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-09-02 54.88 cfs (2%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-09-01 164.64 cfs (7%) FORT LYON CANAL, 1884-04-15 · Arkansas River · same source, at or above the calling point
2026-08-31 164.64 cfs (7%) FORT LYON CANAL, 1884-04-15 · Arkansas River · same source, at or above the calling point
2026-08-30 164.64 cfs (7%) FORT LYON CANAL, 1884-04-15 · Arkansas River · same source, at or above the calling point
2026-08-29 109.76 cfs (4%) BESSEMER DITCH, 1882-03-31 · Arkansas River · same source, at or above the calling point
2026-08-28 0.0 cfs (0%) BESSEMER DITCH, 1882-03-31 · Arkansas River · same source, at or above the calling point
2026-08-27 0.0 cfs (0%) BESSEMER DITCH, 1882-03-31 · Arkansas River · same source, at or above the calling point
2026-08-26 0.0 cfs (0%) BESSEMER DITCH, 1882-03-31 · Arkansas River · same source, at or above the calling point
2026-08-25 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-08-24 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-08-23 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-08-22 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-08-21 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-08-20 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-08-19 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-08-18 0.0 cfs (0%) WILLIAMS & HAMM DITCH, 1875-12-31 · Arkansas River · same source, at or above the calling point
2026-08-17 0.0 cfs (0%) WILLIAMS & HAMM DITCH, 1875-12-31 · Arkansas River · same source, at or above the calling point
2026-08-16 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-08-15 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-08-14 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-08-13 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-08-12 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-08-11 0.0 cfs (0%) ROCKY FORD HIGHLINE, 1870-12-31 · Arkansas River · same source, at or above the calling point
2026-08-10 0.0 cfs (0%) CANON CITY & OIL CREEK, 1867-05-31 · Arkansas River · same source, at or above the calling point
2026-08-09 0.0 cfs (0%) CANON CITY & OIL CREEK, 1867-05-31 · Arkansas River · same source, at or above the calling point
2026-08-08 0.0 cfs (0%) CANON CITY & OIL CREEK, 1867-05-31 · Arkansas River · same source, at or above the calling point
2026-08-07 0.0 cfs (0%) CANON CITY & OIL CREEK, 1867-05-31 · Arkansas River · same source, at or above the calling point
2026-08-06 0.0 cfs (0%) CANON CITY & OIL CREEK, 1867-05-31 · Arkansas River · same source, at or above the calling point
2026-08-05 0.0 cfs (0%) ROCKY FORD HIGHLINE, 1869-07-01 · Arkansas River · same source, at or above the calling point
2026-08-04 0.0 cfs (0%) ROCKY FORD HIGHLINE, 1869-07-01 · Arkansas River · same source, at or above the calling point
2026-08-03 54.88 cfs (2%) BESSEMER DITCH, 1881-06-20 · Arkansas River · same source, at or above the calling point
2026-08-02 164.64 cfs (7%) FORT LYON CANAL, 1884-12-03 · Arkansas River · same source, at or above the calling point
2026-08-01 164.64 cfs (7%) FORT LYON CANAL, 1884-12-03 · Arkansas River · same source, at or above the calling point
2026-07-31 164.64 cfs (7%) FORT LYON CANAL, 1884-12-03 · Arkansas River · same source, at or above the calling point
2026-07-30 123.48 cfs (5%) SOUTH CANON DITCH, 1882-05-31 · Arkansas River · same source, at or above the calling point
2026-07-29 0.0 cfs (0%) ROCKY FORD DITCH, 1874-05-15 · Arkansas River · same source, at or above the calling point
2026-07-28 0.0 cfs (0%) ROCKY FORD DITCH, 1874-05-15 · Arkansas River · same source, at or above the calling point
2026-07-27 0.0 cfs (0%) ROCKY FORD DITCH, 1875-12-31 · Arkansas River · same source, at or above the calling point
2026-07-26 0.0 cfs (0%) ROCKY FORD DITCH, 1875-12-31 · Arkansas River · same source, at or above the calling point
2026-07-25 0.0 cfs (0%) ROCKY FORD DITCH, 1875-12-31 · Arkansas River · same source, at or above the calling point
2026-07-24 0.0 cfs (0%) ROCKY FORD DITCH, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-07-23 0.0 cfs (0%) CANON CITY & OIL CREEK, 1867-05-31 · Arkansas River · same source, at or above the calling point
2026-07-22 0.0 cfs (0%) CANON CITY & OIL CREEK, 1867-05-31 · Arkansas River · same source, at or above the calling point
2026-07-21 0.0 cfs (0%) CANON CITY & OIL CREEK, 1867-05-31 · Arkansas River · same source, at or above the calling point
2026-07-20 0.0 cfs (0%) OXFORD CANAL, 1869-07-01 · Arkansas River · same source, at or above the calling point
2026-07-19 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-07-18 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-07-17 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-07-16 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-07-15 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-07-14 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-07-13 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-07-12 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-07-11 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-07-10 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-07-09 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-07-08 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-07-07 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-07-06 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-07-05 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-07-04 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-07-03 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-07-02 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-07-01 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-06-30 0.0 cfs (0%) WILLIAMS & HAMM DITCH, 1875-12-31 · Arkansas River · same source, at or above the calling point
2026-06-29 0.0 cfs (0%) BESSEMER DITCH, 1882-03-31 · Arkansas River · same source, at or above the calling point
2026-06-28 0.0 cfs (0%) BESSEMER DITCH, 1882-03-31 · Arkansas River · same source, at or above the calling point
2026-06-27 0.0 cfs (0%) BESSEMER DITCH, 1875-12-31 · Arkansas River · same source, at or above the calling point
2026-06-26 0.0 cfs (0%) BESSEMER DITCH, 1875-12-31 · Arkansas River · same source, at or above the calling point
2026-06-25 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-06-24 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-06-23 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-06-22 0.0 cfs (0%) PBWW NORTHSIDE INTAKE, 1874-04-01 · Arkansas River · same source, at or above the calling point
2026-06-21 0.0 cfs (0%) FORT LYON CANAL, 1882-05-31 · Arkansas River · same source, at or above the calling point
2026-06-20 0.0 cfs (0%) FORT LYON CANAL, 1882-05-31 · Arkansas River · same source, at or above the calling point
2026-06-19 0.0 cfs (0%) ROCKY FORD DITCH, 1882-03-31 · Arkansas River · same source, at or above the calling point
2026-06-18 0.0 cfs (0%) ROCKY FORD DITCH, 1882-03-31 · Arkansas River · same source, at or above the calling point
2026-06-17 0.0 cfs (0%) ROCKY FORD DITCH, 1874-05-15 · Arkansas River · same source, at or above the calling point
2026-06-16 0.0 cfs (0%) ROCKY FORD DITCH, 1874-05-15 · Arkansas River · same source, at or above the calling point
2026-06-15 0.0 cfs (0%) SOUTH CANON DITCH, 1882-05-31 · Arkansas River · same source, at or above the calling point
2026-06-14 0.0 cfs (0%) SOUTH CANON DITCH, 1882-05-31 · Arkansas River · same source, at or above the calling point
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: 1867.

Water-court filings naming this structure

1 application in the monthly water-court resumes explicitly reference this WDID. The resume is the earliest public notice of a new claim (C.R.S. 37-92-302) — years before anything reaches the decree record below. Most applications name structures by name rather than WDID, so absence here is weak evidence of absence.

MonthCaseWhat it asksOppose byExcerpt
2026-02 2019CW3036 — closed 2026-04-30 CASE NO. 2019CW3036; LOWER ARKANSAS WATER MANAGEMENT ASSOCIATION (“LAWMA”), c/o Roy Cue, Manager, P. O. Box 1161, Lamar, Colorado 81052 (Please address all pleadings and inquiries regarding this matter to Applicant’s att…

Source: Judicial Branch combined monthly resumes (archive), indexed nightly; WDIDs attached only when a 7-digit token in the filing matches DWR’s structure inventory.

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 174,949 AF. Its most recent year on record, 2025, came in at 133,197 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)
2011 191,940 9th lowest of 15 · 110% of median 249 999.0
2012 51,529 1st lowest of 15 · 30% of median 178 317.0
2013 139,028 5th lowest of 15 · 80% of median 246 928.0
2014 202,228 12th lowest of 15 · 116% of median 242 935.0
2015 259,664 14th lowest of 15 · 148% of median 246 1020.0
2016 201,257 10th lowest of 15 · 115% of median 260 1070.0
2017 310,654 15th lowest of 15 · 178% of median 264 1110.0
2018 159,461 7th lowest of 15 · 91% of median 343 905.0
2019 236,565 13th lowest of 15 · 135% of median 365 1040.0
2020 119,027 3rd lowest of 15 · 68% of median 366 763.0
2021 156,617 6th lowest of 15 · 90% of median 365 1020.9
2022 115,863 2nd lowest of 15 · 66% of median 365 765.0
2023 174,949 8th lowest of 15 · 100% of median 365 837.0
2024 201,855 11th lowest of 15 · 115% of median 366 1352.8
2025 133,197 4th lowest of 15 · 76% of median 304 929.1

Call-derived yield: senior right divertible 0.0% of a median season / 0.0% dry-year.

How good is our record of it?

Grade A (10/10 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 8 right(s), seniority decoded
diversion record current 35812 measured days, newest 331 day(s) before the data's end (DWR publishes ~1 year in arrears)
record continuity continuous 100% of the irrigation seasons in 1910-2025 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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