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LEWIS H DAVIDSON D

Structure dossier · WDID 0600735 · DITCH · SOUTH BOULDER CREEK · DWR record

Lewis H Davidson D is a ditch on South Boulder 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 2026-10-18 22:16 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260928 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (26fd646) — 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
LH DAVIDSON DITCH LHDDITCO 0.0 cfs 2021–2026, 1,752 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

0.0 cfs as of 2026-10-18 19:30 (2.8 h ago)

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

Provisional 15-minute telemetry from LHDDITCO ↗ (LH DAVIDSON 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

In a median year over its last 15 recorded years it diverts 97 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.

Filings that would move water above this headgate

4 water-court applications in the monthly resumes name a structure on SOUTH BOULDER CREEK upstream of this headgate. A new right, exchange or change of use up there changes what arrives down here — the resume is the public notice, and the opposition window is how anyone affected answers it.

MonthCaseWhat it asksUpstream structuresOppose by
2026-08 2026CW3125 reasonable diligence LEYNER COTTONWOOD DITCH (3.8 mi up), ENTERPRISE DITCH (3.8 mi up), NEW DRY CR CARRIER DITCH (3.8 mi up), S BOULDER BEAR CR DITCH (6.7 mi up) +2 more 2026-10-31 (13d)
2026-06 2026CW3093 reasonable diligence LEYNER COTTONWOOD DITCH (3.8 mi up), ENTERPRISE DITCH (3.8 mi up), NEW DRY CR CARRIER DITCH (3.8 mi up), S BOULDER BEAR CR DITCH (6.7 mi up) +2 more 2026-08-31
2025-10 2025CW3137 reasonable diligence LEYNER COTTONWOOD DITCH (3.8 mi up), ENTERPRISE DITCH (3.8 mi up), NEW DRY CR CARRIER DITCH (3.8 mi up), S BOULDER BEAR CR DITCH (6.7 mi up) +2 more 2025-12-31
2025-04 2025CW3049 reasonable diligence LEYNER COTTONWOOD DITCH (3.8 mi up), ENTERPRISE DITCH (3.8 mi up), NEW DRY CR CARRIER DITCH (3.8 mi up), S BOULDER BEAR CR DITCH (6.7 mi up) +2 more 2025-06-30

Judged on this structure’s own named stream only — a filing on a tributary that joins upstream is not judged here. Filings that name structures only in prose, without a WDID, are invisible to this card. Reading aid, not legal advice; the deadline is computed from C.R.S. 37-92-302(3), and the court’s own notice controls.

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 97 AF. Its most recent year on record, 2025, came in at 58 AF — 60% 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)
2009 83 7th lowest of 15 · 86% of median 42 1.7
2010 186 12th lowest of 15 · 192% of median 70 2.6
2011 242 15th lowest of 15 · 250% of median 78 2.2
2012 113 10th lowest of 15 · 116% of median 52 1.6
2013 203 13th lowest of 15 · 209% of median 82 1.7
2014 221 14th lowest of 15 · 228% of median 104 1.3
2015 50 2nd lowest of 15 · 52% of median 32 1.2
2016 125 11th lowest of 15 · 129% of median 60 2.3
2017 67 5th lowest of 15 · 69% of median 40 1.4
2018 47 1st lowest of 15 · 48% of median 47 1.2
2019 106 9th lowest of 15 · 109% of median 53 1.2
2020 72 6th lowest of 15 · 74% of median 39 1.9
2021 56 3rd lowest of 15 · 58% of median 28 2.0
2022 97 8th lowest of 15 · 100% of median 47 1.5
2025 58 4th lowest of 15 · 60% of median 27 1.3

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 3531 measured days; currency unknown (no data-coverage date to compare against)
record continuity sparse 22% of the irrigation seasons in 1950-2025 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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