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VOUGA RESERVOIR

Structure dossier · WDID 2803595 · RESERVOIR · RAZOR CREEK · DWR record

Vouga Reservoir is a reservoir on Razor 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 2026-10-21 23:41 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260928 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (71f534c) — every figure regenerates from this named code version and data image.

Who owns it

DWR’s own records name no owner for a ditch, reservoir or well, so this comes from the source shown and can be out of date. Organisations only: a private landowner’s name is never listed.

Where this structure is measured

GageFlowing nowRecordHow we know
VOUGA RESERVOIR NEAR DOYLEVILLE VUGRESCO — — co-located, 33 m
RAZOR CREEK BELOW VOUGA RESERVOIR NEAR DOYLEVILLE RAZBVGCO 43.3 cfs 2004–2026, 6,633 days co-located, 112 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.

In short

VOUGA RESERVOIR holds 2 decreed rights on RAZOR CREEK. As of 2026-09-27, 2 of them are out of priority under a call at admin 10301.00000 placed by KENNEDY DITCH NO 1. 8 further calls state no district and sit outside this one, so they are counted here rather than assumed either way.

Assembled from the figures on this page — every number above is checked against them before it is shown (6 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 (storage). Faint dots are the neighbouring water; click any to open it.

Dam safety

Dam VOUGA (completed 1978)
Hazard class High
Condition at last inspection Conditionally Satisfactory (2026-07-16)
Storage restriction None on file
Normal storage 920 AF
Physical status Active
Emergency action plan Yes

Source: DWR Dam Safety’s jurisdictional-dam inventory (damsafety/damsafetydaminfojd), refreshed weekly. Joined on this structure’s own WDID as DWR records it on the dam. Hazard class describes the consequence of failure, not the likelihood of it. DWR’s dam record.

Current administration

● Fully called out — call at KENNEDY DITCH NO 1 (RAZOR CREEK, priority 1878-03-15).

Which of its rights are out of priority?

Under today's controlling call (KENNEDY DITCH NO 1, priority 1878-03-15): 2 of this structure's 2 rights are out of priority now. (8 call(s) state no district and sit outside this one — not judged, not assumed.) In the 5 past years most like this one (2023, 2016, 2012, 2017, 2007), 0 of the rights shown below were out at least one week in at least one analog year.

Right (priority)NowAnalog years outMajority out by
1955-04-20 38460 ● out 0 of 5 —
1978-10-26 47050 ● out 0 of 5 —
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 RAZOR CREEK BELOW VOUGA RESERVOIR NEAR DOYLEVILLE around 2026-09-27 (the newest reading on file) — currently 3029% 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 1955-04-20 — 784th most senior of the 1505 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: DEERING SPRING DITCH (1954-09-13). Immediately behind: HARTMAN WASTE WTR IRG D (1909-07-15).

On RAZOR CREEK at river mile 32.6, it is 12th of 64 down the reach. Immediately upstream: TOMMIE DITCH. Immediately downstream: HORSE SHY SPRING.

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)

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
38460.00000 1955-04-201956-04-16 510.0 AF 0.0 — Irrigation 370
47050.00000 1978-10-261978-12-31 410.0 AF 0.0 — Irrigation W3576, 80CW0032

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.

Recorded use (last 5 years on record)

Years far under the decreed amount? That gap has a name — paper water vs. wet water, explained on this structure.

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)
1988 — no recorded volume 2,277 0 —
2016 — no recorded volume 726 0 —
2018 — no recorded volume 560 0 —
2019 — no recorded volume 160 0 —
2021 — no recorded volume 924 0 —

How good is our record of it?

Grade B (7/10 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 2 right(s), seniority decoded
diversion record stale 1004 measured days, but newest is 1792 day(s) before the data's end (target 450)
record continuity sparse 14% of the irrigation seasons in 1988-2021 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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