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DORY LAKE INLET DITCH

Structure dossier · WDID 0700914 · DITCH · SOUTH FORK RALSTON CREEK · DWR record

Dory Lake Inlet Ditch is a ditch on South Fork Ralston Creek in Colorado. This page is its public record: the water it has a right to, whether it may take it today, and its history, compiled from the Colorado Division of Water Resources.

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 2026-10-15 02:43 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260928 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (c7f5ca1) — every figure regenerates from this named code version and data image.

The record and the river

Where this structure is measured

GageFlowing nowRecordHow we know
DORY LAKE INLET DITCH DORYINCO 0.0 cfs 2018–2026, 2,701 days DWR telemetry mapping
DORY LAKE DORYLKCO — — co-located, 227 m

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

0.0 cfs last reported 2026-10-01 15:00

Zero is a real reading: the gage is reporting, and it says this structure is not diverting right now.

This station has not reported in over a day, so treat the number as the last thing it said, not as now.

Provisional 15-minute telemetry from DORYINCO ↗ (DORY LAKE INLET DITCH). 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

DORY LAKE INLET DITCH holds 5 decreed rights on SOUTH FORK RALSTON CREEK. A call at WANNAMAKER DITCH on CLEAR CREEK (1870-05-23) currently reaches it: junior rights called out. 7 further calls state no district and sit outside this one, so they are counted here rather than assumed either way. That is today's position; the weeks ahead cannot be projected for it: no gage record for this year at this date, so there is nothing to find analogs for. In a median year over its last 10 recorded years it diverts 18 acre-feet. It was a party to 5 court cases that also touched 7 other structures.

Assembled from the figures on this page — every number above is checked against them before it is shown (7 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 WANNAMAKER DITCH (CLEAR CREEK, priority 1870-05-23).

Which of its rights are out of priority?

The outlook for the weeks ahead is not computable for this structure: no gage record for this year at this date, so there is nothing to find analogs for. 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 1869-06-01 — 76th most senior of the 1815 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: HAINES PIQUETTE DITCH (1869-06-01). Immediately behind: TUCKER RES (1869-06-01).

On RALSTON CREEK at river mile 56.6, it is 23rd of 24 down the reach. Immediately upstream: SEA OF TRANQUILLITY RES. Immediately downstream: MANHART DITCH.

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 (6)

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
7092.00000 1869-06-011884-10-04 0.0 cfs 0.0 0.12 cfs Storage, Municipal +1 94CW0277
17975.00000 1899-03-191936-05-13 0.0 cfs 0.0 0.22 cfs Storage, Municipal +1 94CW0277
52776.00000 1994-06-301994-12-31 1.0 cfs 0.0 — Storage 94CW0277
55972.00000 2003-03-312003-12-31 0.0 cfs 0.0 0.3 cfs Municipal 03CW0217
58804.58766 2010-11-232011-12-31 0.0 AF 0.0 42.4 AF Municipal 11CW0272, 22CW3027
58804.58766 2010-11-232011-12-31 0.0 cfs 0.0 6.0 cfs Municipal 11CW0272, 22CW3027

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 1.0 cfs decreed rate, the average day over the last 6 year(s) had 0.045 cfs in priority (5% of the decree). No call in effect is a free river — that was 4.1% of days.

On 12 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 12 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 0.0 cfs 0% 0 287
2025 0.0 cfs 0% 0 365
2024 0.09 cfs 9% 12 347
2023 0.36 cfs 36% 62 296
2022 0.0 cfs 0% 0 364
2021 0.0 cfs 0% 0 78
Show the last 120 days, day by day
DateIn priorityControlling call
2026-10-14 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-10-13 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-10-12 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-10-11 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-10-10 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-10-09 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-10-08 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-10-07 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-10-06 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-10-05 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-10-04 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-10-03 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-10-02 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-10-01 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-30 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-29 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-28 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-27 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-26 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-25 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-24 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-23 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-22 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-21 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-20 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-19 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-18 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-17 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-16 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-15 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-14 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-13 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-12 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-11 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-10 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-09 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-08 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-07 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-06 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-05 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-04 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-03 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-02 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-09-01 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-08-31 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-08-30 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-08-29 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-08-28 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-08-27 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-08-26 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-08-25 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-08-24 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-08-23 0.0 cfs (0%) WANNAMAKER DITCH, 1861-04-30 · Clear Creek · on a river this source flows into
2026-08-22 0.0 cfs (0%) WANNAMAKER DITCH, 1861-04-30 · Clear Creek · on a river this source flows into
2026-08-21 0.0 cfs (0%) WANNAMAKER DITCH, 1861-06-11 · Clear Creek · on a river this source flows into
2026-08-20 0.0 cfs (0%) FISHER DITCH, 1861-06-29 · Clear Creek · on a river this source flows into
2026-08-19 0.0 cfs (0%) FISHER DITCH, 1861-06-29 · Clear Creek · on a river this source flows into
2026-08-18 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-08-17 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-08-16 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1863-06-20 · Clear Creek · on a river this source flows into
2026-08-15 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1863-06-20 · Clear Creek · on a river this source flows into
2026-08-14 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-08-13 0.0 cfs (0%) WANNAMAKER DITCH, 1861-05-13 · Clear Creek · on a river this source flows into
2026-08-12 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-08-11 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-08-10 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-08-09 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-08-08 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-08-07 0.0 cfs (0%) WANNAMAKER DITCH, 1860-07-01 · Clear Creek · on a river this source flows into
2026-08-06 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-08-05 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-08-04 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-08-03 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-08-02 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-08-01 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1863-11-05 · Clear Creek · on a river this source flows into
2026-07-31 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1863-11-05 · Clear Creek · on a river this source flows into
2026-07-30 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-29 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-28 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-27 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-26 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-25 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-24 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-23 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-22 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-21 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-20 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-19 0.0 cfs (0%) SOUTH PLATTE RIVER AT WATERTON, 1860-12-31 · South Platte River · on a river this source flows into
2026-07-18 0.0 cfs (0%) SOUTH PLATTE RIVER AT WATERTON, 1860-12-31 · South Platte River · on a river this source flows into
2026-07-17 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-16 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-15 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-14 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-13 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-12 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-11 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-10 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-09 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-08 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1861-11-01 · Clear Creek · on a river this source flows into
2026-07-07 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1863-06-20 · Clear Creek · on a river this source flows into
2026-07-06 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1863-06-20 · Clear Creek · on a river this source flows into
2026-07-05 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1863-06-20 · Clear Creek · on a river this source flows into
2026-07-04 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1863-11-05 · Clear Creek · on a river this source flows into
2026-07-03 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1863-11-05 · Clear Creek · on a river this source flows into
2026-07-02 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1863-11-05 · Clear Creek · on a river this source flows into
2026-07-01 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1863-11-05 · Clear Creek · on a river this source flows into
2026-06-30 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1863-11-05 · Clear Creek · on a river this source flows into
2026-06-29 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1863-11-05 · Clear Creek · on a river this source flows into
2026-06-28 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1865-02-28 · Clear Creek · on a river this source flows into
2026-06-27 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1865-02-28 · Clear Creek · on a river this source flows into
2026-06-26 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1865-02-28 · Clear Creek · on a river this source flows into
2026-06-25 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1865-02-28 · Clear Creek · on a river this source flows into
2026-06-24 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1865-02-28 · Clear Creek · on a river this source flows into
2026-06-23 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1865-02-28 · Clear Creek · on a river this source flows into
2026-06-22 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1865-02-28 · Clear Creek · on a river this source flows into
2026-06-21 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1865-02-28 · Clear Creek · on a river this source flows into
2026-06-20 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1865-02-28 · Clear Creek · on a river this source flows into
2026-06-19 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1865-02-28 · Clear Creek · on a river this source flows into
2026-06-18 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1865-02-28 · Clear Creek · on a river this source flows into
2026-06-17 0.0 cfs (0%) CLEAR CR PLATTE RIVER D, 1865-02-28 · Clear Creek · on a river this source flows into
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: 5669, of which 5669 sit on a river it flows into.

How often is it out of priority?

Across the 11 seasons whose call record is complete enough to judge this structure (2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026), week by week from April.

most senior right · admin 7092.00000 · peaks at 11 of 11 seasons
AprMayJunJulAugSep
middle right · admin 52776.00000 · peaks at 11 of 11 seasons
AprMayJunJulAugSep
most junior right · admin 58804.58766 · peaks at 11 of 11 seasons
AprMayJunJulAugSep

Snow sets the clock here. In the driest third of snow years (3 seasons), the call was on all season, every season. In the middle third (5 seasons), the call settled in for the season around May 27; in 4 of them it never lifted at all. In the wettest third (3 seasons), the call settled in for the season around June 24 (June 17 to July 8 across those years).

Snow years ranked by the district’s April 1 snow-water percentile across 1 SNOTEL site; 11 seasons carry both a snow reading and a judgeable call record. How the past played out, not a forecast.

Why only 11 seasons, and what the bars mean

Each bar is one week: how many of those seasons that right was out of priority under a call this site can lawfully attribute to this structure. Green is never, red is every season on record.

The short record is a property of DWR's data, not of the river. A call only counts against a structure when we can establish it applies — by the districts named in its set comments, or by stream mile on the same source. DWR did not begin stating affected districts routinely until about 2015: fewer than one call in ten can be judged before then, against roughly two in three since. A season we cannot judge is not a season without calls, so it is dropped rather than counted as quiet — 12 seasons dropped here.

This is a frequency over past seasons, not a forecast. It says nothing about what the division engineer will do this year.

Recorded use (last 10 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 AF. Its most recent year on record, 2025, came in at 1 AF — 6% of that, and 1st lowest of the 10 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)
2016 56 10th lowest of 10 · 320% of median 46 1.0
2017 31 9th lowest of 10 · 177% of median 101 0.4
2018 21 6th lowest of 10 · 120% of median 84 0.2
2019 12 3rd lowest of 10 · 69% of median 74 0.2
2020 22 7th lowest of 10 · 126% of median 38 0.4
2021 12 3rd lowest of 10 · 69% of median 48 0.3
2022 14 5th lowest of 10 · 80% of median 102 0.2
2023 26 8th lowest of 10 · 149% of median 365 0.4
2024 5 2nd lowest of 10 · 29% of median 365 0.2
2025 1 1st lowest of 10 · 6% of median 304 0.2

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 6 right(s), seniority decoded
diversion record current 1527 measured days, newest 335 day(s) before the data's end (DWR publishes ~1 year in arrears)
record continuity continuous 75% of the irrigation seasons in 2016-2025 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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