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BERGEN NO 1 WEST RES

Structure dossier · WDID 0904274 · RESERVOIR · TURKEY CREEK · DWR record

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 2026-10-12 16:51 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.

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DWR’s own records name no owner for a ditch, reservoir or well, so this comes from the source shown and can be out of date.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.

The record and the river

Where this structure is measured

GageFlowing nowRecordHow we know
BERGEN #1 WEST RESERVOIR INFLOW 0904274A 0.0 cfs 2022–2026, 1,495 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 2026-10-12 13:15 (3.6 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 0904274A ↗ (BERGEN #1 WEST RESERVOIR INFLOW). 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

BERGEN NO 1 WEST RES holds 3 decreed rights on TURKEY CREEK. A call at PIONEER UNION DITCH on BEAR CREEK (1861-12-10) currently reaches it: fully 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 14 recorded years it diverts 312 acre-feet. It was a party to 2 court cases that also touched 10 other structures.

Assembled from the figures on this page — every number above is checked against them before it is shown (8 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 BERGEN EAST (completed 1874)
Hazard class High
Condition at last inspection Satisfactory (2026-03-24)
Storage restriction None on file
Normal storage 706 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 PIONEER UNION DITCH (BEAR CREEK, priority 1861-12-10).

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 1874-05-01 — 115th most senior of the 2058 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: 0903689 (1874-05-01). Immediately behind: BERGEN NO 2 EAST RES (1874-05-01).

On TURKEY CREEK at river mile 33.5, it is 10th of 21 down the reach. Immediately upstream: KINGFISHER LAKE C702. Immediately downstream: DEANE RES.

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 (3)

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
8887.00000 1874-05-011884-02-04 157.5 AF 0.0 — Irrigation 82CW0476, CA6832
12479.00000 1884-03-011935-09-24 89.04 AF 0.0 — Irrigation CA91471, 82CW0476
61342.00000 2017-12-122017-12-31 0.0 AF 0.0 35.3 AF Irrigation, Recreation +1 17CW3192

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 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 8887.00000 · peaks at 10 of 11 seasons
AprMayJunJulAugSep
middle right · admin 12479.00000 · peaks at 11 of 11 seasons
AprMayJunJulAugSep
most junior right · admin 61342.00000 · peaks at 11 of 11 seasons
AprMayJunJulAugSep

Snow sets the clock here. In the driest third of snow years (3 seasons), 2 seasons stayed under call throughout and 0 ended free. In the middle third (5 seasons), the call settled in for the season around June 24 (June 10 to July 15 across those years); in 1 of them it never lifted at all. In the wettest third (3 seasons), the call settled in for the season around June 3 (May 20 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 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 312 AF. Its most recent year on record, 2025, came in at 316 AF — 101% of that, and 9th lowest of the 14 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)
1991 140 1st lowest of 14 · 45% of median — 67 4.8
2009 266 5th lowest of 14 · 85% of median 442 55 15.1
2010 267 6th lowest of 14 · 86% of median 209 17 10.4
2011 489 14th lowest of 14 · 157% of median 488 76 10.2
2012 363 11th lowest of 14 · 116% of median — 65 6.1
2013 — no recorded volume 15 0 —
2017 381 12th lowest of 14 · 122% of median — 66 5.7
2018 418 13th lowest of 14 · 134% of median — 68 11.6
2019 347 10th lowest of 14 · 111% of median — 24 11.2
2020 220 3rd lowest of 14 · 70% of median 40 13 13.6
2021 315 8th lowest of 14 · 101% of median 188 24 9.1
2022 309 7th lowest of 14 · 99% of median 91 34 8.1
2023 218 2nd lowest of 14 · 70% of median 124 24 12.2
2024 247 4th lowest of 14 · 79% of median 127 18 15.0
2025 316 9th lowest of 14 · 101% of median 43 39 8.8

How good is our record of it?

Grade B (8/10 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 3 right(s), seniority decoded
diversion record current 2028 measured days, newest 331 day(s) before the data's end (DWR publishes ~1 year in arrears)
record continuity sparse 19% of the irrigation seasons in 1975-2025 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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