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DON LA FONT NO 1 D

Structure dossier · WDID 2000917 · DITCH · TRANSBASIN WATER · DWR record

Don La Font No 1 D is a ditch on Transbasin Water 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 2026-10-17 16:49 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.

This is water crossing the divide

Don La Font No 1 D is the receiving end of the Don La Font Ditches (ditch). It takes water from Piedra River headwaters at Piedra Pass (Div 7) and delivers it to Rio Grande headwaters (Div 3). Water arriving here is an import: it was never in this basin’s own runoff.

The other end: Don La Font Ditch No 1 7804670, Don La Font Ditch No 2 7804671

Metered as a facility: DLFDT1CO, DLFDT2CO, DLFCMBCO — the record for the crossing itself, which may run longer than the record for either structure.

From the site’s hand-curated register of transbasin facilities. Every crossing on one page →

Where this structure is measured

GageFlowing nowRecordHow we know
DON LA FONT DITCH NO. 1 AT PIEDRA PASS DLFDT1CO 0.46 cfs 1951–2026, 19,182 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

0.46 cfs as of 2026-10-17 15:00 (1.8 h ago)

Provisional 15-minute telemetry from DLFDT1CO ↗ (DON LA FONT DITCH NO. 1 AT PIEDRA PASS). 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

In a median year over its last 15 recorded years it diverts 51 acre-feet.

Assembled from the figures on this page — every number above is checked against them before it is shown (2 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.

Which of its rights are out of priority?

The outlook for the weeks ahead is not computable for this structure: no decreed right on file, so there is no priority to test.

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 51 AF. Its most recent year on record, 2025, came in at 36 AF — 71% of that, and 6th lowest of the 15 years with a recorded volume.

This structure records both diversions and reservoir releases — they are separate water movements and are accounted separately below.

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 recordReleased (AF)Days recordedPeak (cfs)
2011 123 15th lowest of 15 · 241% of median 123 36 3.4
2012 50 7th lowest of 15 · 98% of median 50 46 2.0
2013 51 8th lowest of 15 · 100% of median 51 13 5.3
2014 81 12th lowest of 15 · 159% of median 81 92 2.8
2015 71 10th lowest of 15 · 139% of median 71 83 2.7
2016 81 12th lowest of 15 · 159% of median 81 134 3.9
2017 82 14th lowest of 15 · 161% of median 82 304 3.2
2018 4 1st lowest of 15 · 8% of median 4 17 0.4
2019 79 11th lowest of 15 · 155% of median 79 78 3.1
2020 20 3rd lowest of 15 · 39% of median 20 27 1.7
2021 30 4th lowest of 15 · 59% of median 30 44 1.7
2022 10 2nd lowest of 15 · 20% of median 10 20 2.6
2023 30 4th lowest of 15 · 59% of median 30 11 1.9
2024 54 9th lowest of 15 · 106% of median 54 42 2.2
2025 36 6th lowest of 15 · 71% of median 36 21 1.9

How good is our record of it?

Grade C (5/10 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 absent no water rights cached for this WDID
diversion record present 1395 measured days; currency unknown (no data-coverage date to compare against)
record continuity sparse 11% of the irrigation seasons in 1964-2025 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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