ROBINSON DITCH ☆ My Water

The record and the river

In short

ROBINSON DITCH holds 2 decreed rights on FOUNTAIN CREEK. No call currently reaches it that we can lawfully attribute, so none of its rights are being curtailed by one. 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 2,686 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.

Current administration

● In priority — no active call senior to this structure's rights affects its district (18 active call(s) checked).

12 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 (18 active call(s) checked), so none of its 2 rights is administratively curtailed today. (12 call(s) state no district and sit outside this one — not judged, not assumed.) In the 5 past years most like this one (2015, 2024, 2023, 2008, 2018), 0 of the rights shown below were out at least one week in at least one analog year.

Where it sits in line

Priority 1863-03-01 — 41st most senior of the 2872 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: GATES OWEN & HALL WELL 2 (1862-12-31)☆. Immediately behind: M W STEELE WELL NO 4A (1863-03-01)☆.

On MAINSTEM at river mile 46.1, it is 392nd of 448 down the reach. Immediately upstream: COTTEN SLOUGH DITCH☆. Immediately downstream: IRON & IRVINE 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 (2)

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 10.45 cfs decreed rate, the average day over the last 6 year(s) had 10.298 cfs in priority (99% of the decree). No call in effect is a free river — that was 0.0% of days.

On 6 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 →

Legal record & documents

4 decreed actions on record across 2 court cases: 86CW0031, CA0751.

276 imaged documents on DWR’s shelf for this structure — 13 water-court documents across 2 cases, including 2 decrees. Every row opens the scanned PDF at DWR. Listing as of 2026-10-03.

Imaged documents at DWR. DWR keeps the scanned documents for this structure — decrees, rulings, plats, correspondence — in its Laserfiche archive. Open the list directly: imaged documents for 1000580 ↗ (indexed by structure, not by case — the cases listed above appear within the list).

Other DWR records for this structure: DWR’s page for this structure ↗ — net amounts, water rights, transactions & adjudication history, and diversion records, all on that one page. On this site: the district’s full legal picture →

Structures it shares court cases with

Also a party to 2 omnibus adjudications (CA0751, 103 structures; 86CW0031, 37 structures). Those settled many rights at once and are listed separately: they say these structures were adjudicated together, not that they deal with each other.

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 2,686 AF. Its most recent year on record, 1986, came in at 1,672 AF — 62% of that, and 2nd lowest of the 15 years with a recorded volume.

Trends for this structure

Recorded use shows no clear trend over its last 15 recorded years — which is itself worth knowing.

Its reference gage, Talcott and Cotton Ditch: annual flow rising at +1.43 cfs per decade (+75.8% of its median annual flow), with a detected shift around 2018.

Every gage and reach in this district →

How good is our record of it?

Grade B (8/10 points) — the components below are the finding; the letter alone is not.