Hydrohistorian
Bear Creek on the ground — the ditches, wells, reservoirs and gages of Water District 9 · clicktap anything for its record
Snowpack — no snow on the ground at 1 SNOTEL site — normal for the date; the snow year begins in October and typically peaks around April 29. Runoff outlook — Bear Ck ab Evergreen: even odds of at least 7 kAF over 06-01 to 09-30 — 66% of a normal season, per NRCS, issued 2026-06-01 — the season’s final; new forecasts begin in January. Full snow & runoff picture — charts, forecast history and how the forecasts have verified →
Sites, exceedance bands and sources
| SNOTEL site | Elev (ft) | SWE (in) | Median (in) | % of median | Typical peak |
|---|---|---|---|---|---|
| Echo Lake | 10660 | 0.0 | 0.0 | — | April 29 (9.0 in) |
Bear Ck ab Evergreen — 06-01 to 09-30 volume, thousand acre-feet (chance the volume is AT LEAST this):
| 90% | 70% | 50% | 30% | 10% | Normal |
|---|---|---|---|---|---|
| 4 | 6 | 7 | 9 | 12 | 10 |
Snow-water equivalent and medians (1991–2020) from NRCS SNOTEL; seasonal volume forecasts from the NRCS National Water and Climate Center. Sites and forecast points are assigned to the district whose boundary contains them — snowpack that feeds this district can also sit in a neighboring headwater district. Toggle the Snow chip on the map above to see the sites.
Schematic
Historical
Evolution of the network
Trends
This year, in context
In the weeks around 2026-08-17 (the newest reading on file), flows at the 23 ranked gages are running at a median 104% of their own long-term norm for this window — 9 below a typical year, 14 at or above. Driest relative to its record: BEERS SISTER RESERVOIR OUTLET, ranking 1st lowest of 8 years.
How this comparison is made
Each gage's mean flow over the 3 days either side of 2026-08-17, compared with the same window in every year of its own record — so a gage is only ever measured against itself, and gages with no record in the window are counted out rather than guessed.
Gage flow trend & changepoints
What counts as a trend here
Computed 2026-08-30 19:22 from 33 gage(s) with cached period-of-record data. The series is each gage's annual mean flow in cfs (years with ≥300 days of record). Mann-Kendall (trend, with the Hamed–Rao correction for serial correlation — persistence can otherwise fake significance) and Pettitt (changepoint) both require at least 8 years spanning at least 10 years of record. A gage below that reports no signal — which is not the same as “no change.” The %-per-decade figure is the same Sen slope divided by the gage's median annual flow, for comparing across streams of very different size; it is omitted for near-ephemeral channels where the median is too small to divide by honestly.
Of the 33 gages with enough record, 2 are trending down and 1 up, and 2 carry a detected shift. The clearest is Bear Creek at Morrison, its annual mean flow changing -2.71 cfs per decade (-6.0% of its median annual flow) over 108 years (p=0.0002). The other 30 show no clear signal either way.
What drought has cost here
Since 1991, federal crop insurance has paid $26,221,370 in drought-caused claims across Arapahoe, Jefferson counties — 55.7% of all insured crop losses there. The worst year was 2022 ($3,834,767).
USDA crop-insurance indemnities where the recorded cause of loss is drought, summed over the counties this district's gages sit in. Counties overlap water districts imperfectly, and insured-crop claims are a floor on drought damage, not a total. Source: USDA RMA cause-of-loss files.
| Gage | Trend | Change / decade cfs · % of median annual flow | Significance | Years | Changepoint |
|---|---|---|---|---|---|
|
▸
Bear Creek at Morrison BCRMORCO |
↓ decreasing | -2.71 cfs -6.0% | p<0.001 | 108 | ~1949 |
|
▸
Bear Creek above Evergreen BCREVRCO |
↓ decreasing | -4.14 cfs -13.6% | p=0.027 | 41 | — |
|
▸
Bear Creek at Sheridan BCRSHECO |
↑ increasing | +1.67 cfs +4.6% | p=0.040 | 99 | ~1968 |
30 other gage(s) show no significant trend or changepoint (not shown).
How the measurement network itself changed
This basin was not always measured the way it is today — the API-era record is dense and recent, the early record sparse. 32 gage(s) and 48 structure(s) report in 2026, but structure reporting only reached half its modern level around ~1975. Every historical claim below is checked against this: long-term shifts that co-move with the growth of the network carry an explicit measurement-evolution caution, and abandonment screens whose idleness begins before the modern reporting era are flagged †.
| Decade | Gages with data (median yr) | Structures reporting (median yr) |
|---|---|---|
| 1900s | 1 | 0 |
| 1910s | 1 | 0 |
| 1920s | 1 | 0 |
| 1930s | 2 | 0 |
| 1940s | 2 | 0 |
| 1950s | 2 | 15 |
| 1960s | 2 | 14 |
| 1970s | 2 | 20 |
| 1980s | 3 | 26 |
| 1990s | 4 | 17 |
| 2000s | 6 | 18 |
| 2010s | 6 | 30 |
| 2020s | 29 | 46 |
Mass-balance (network closure) trend
Structure divrec-history backfill coverage as of the last check: 2% of 2331 schematic-relevant structures. 0 year(s) clear the 30% coverage gate so far -- the trend activates automatically once qualifying years span a full decade. No action needed; the nightly backfill keeps extending the record.
Reach gain/loss shifts (–)
Mass-balance kinks computed for every summer month back to (0 reach-snapshots) — which reaches gain or lose water, and how that has shifted across decades. Each shift is cross-checked against the observation record above: as more diversions became metered, "unaccounted" water shrinks mechanically, which can masquerade as a hydrologic shift.
No reach shows a statistically significant long-term gain/loss shift.
Groundwater now has its own tab: 332 monitored well(s), water-table trends, stream corridors, and the advisory depletion screen.
Reservoirs now has its own tab: 39 reservoir(s), end-of-year storage back to 1950, click-to-chart histories.
Cross-gage pattern fingerprint
Over the 42-year window with full coverage (1985–2026), the dominant shared pattern across 3 gage(s) explains 97% of year-to-year variance (almost certainly a basin-wide climate/snowpack driver).
All gages in this window move with the shared pattern -- no localized outlier.
Structures most implicated by reconciliation (as of 2026-08-17)
Which structures' data absorbed the most correction when the current mass-balance snapshot was reconciled -- see the Historical tab for the full picture on any date.
- VAILE LAKE (diversion): +0.9 cfs (9% of that reach's correction)
- NORGREN LAKE (diversion): +0.9 cfs (9% of that reach's correction)
- MIDWAY LAKE (diversion): +0.9 cfs (9% of that reach's correction)
- PATRICK RES (diversion): +0.9 cfs (9% of that reach's correction)
- CIRCLE DITCH (diversion): +0.9 cfs (9% of that reach's correction)
- UPPER TULE RES (diversion): +0.9 cfs (9% of that reach's correction)
- LOWER TULE RES (diversion): +0.9 cfs (9% of that reach's correction)
- FORT LOGAN MEMORIAL RESE (diversion): +0.9 cfs (9% of that reach's correction)
- FORT LOGAN VETERANS RESE (diversion): +0.9 cfs (9% of that reach's correction)
- MCBROOM DITCH (diversion): +0.9 cfs (9% of that reach's correction)
Data provenance & quality
Where these numbers come from and how far they can be trusted. Grade D (2/6 points) — the components below are the finding; the letter alone is not. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (imported 2026-08-19) for history, plus the CDSS REST API for current conditions.
| Check | State | What was measured |
|---|---|---|
| gage freshness | stale | newest gage reading is 13 day(s) old (target 7) |
| diversion record | stale | newest diversion record is 669 day(s) old (DWR publishes ~1 year in arrears) |
| structure coverage | sparse | 2% of schematic structures have data |
Independent check: PASS — 100.0000% agreement across 132,685 stored values re-checked against DWR's authoritative record (HydroBase_CO_20260707), over 20 structures. 0 disagreement(s) beyond a 0.01 cfs tolerance. Checked 2026-08-19; a rotating sample covers the whole basin across successive runs, and the structures this report cites are checked every time.
Federal cross-check: PASS — 99.72% day-level agreement with USGS's own published records for the same gages, across 6 co-listed station(s) and 94,783 overlapping days (within max(2%, 0.5 cfs) daily). Pre-1950 records at some gages carry known between-agency day-stamp and transcription differences — scored at each year's best ±1-day alignment; residual disagreement is real historical divergence, flagged for review.
33 gage(s) / 184,867 daily values (1900-05-01–2026-08-17); 103 structure(s) with diversion records; 2058 with decreed rights. Methodology has not yet had independent expert review — treat every figure as an advisory screen, not an administrative or legal conclusion.
Groundwater
31,450 water-level measurements across 332 monitored well(s) — 77 alluvial, 52 bedrock — plus 0 administered well(s) reporting metered pumping.
What is being counted
Observation wells and pumping wells are different populations and are never conflated: water levels come from monitored observation wells, and metered pumping comes from administered wells reporting through diversion records. Click any well to chart its own record.
Well map
3D aquifer x-ray
Every aquifer unit as its own head surface, animated through time.
How the surfaces are built, and what they are not
Alluvial water table on top, Denver Basin members (Dawson, Denver, Arapahoe, Laramie–Fox Hills) stacked beneath where measured, interpolated from measured water levels. Units are never mixed; a surface exists only inside its own unit's well coverage, with no extrapolation; thin epochs are suppressed and say why. Vertical scale is exaggerated for readability and z is head elevation in feet. These are measured heads, not a calibrated groundwater model.
Water-table trends
Of 14 well(s) with enough record for a trend test: 5 declining, 3 rising.
| Fastest-declining wells | Setting | ft / decade | Span | p |
|---|---|---|---|---|
| ▸ WP243773 | unknown | -151.77 | 11 yr | 0.0049 |
| ▸ WP233156 | unknown | -15.79 | 21 yr | 0.0075 |
| ▸ SC00607102BBD | alluvial | -8.36 | 10 yr | 0.0127 |
| ▸ WP41198 | alluvial | -1.0 | 21 yr | 0.0321 |
| ▸ WP139298 | unknown | -0.72 | 21 yr | 0.0408 |
Wells labeled by administrative world before anything else is said about them: tributary alluvium participates in the priority system; designated-basin and Denver Basin bedrock aquifers are governed differently and are excluded from stream-connection reasoning. Read bedrock declines differently too: deep bedrock aquifers recharge negligibly on human timescales, so a falling bedrock level is storage mining — effectively permanent — not a drought response that a wet year undoes. All screens advisory.
Reservoirs
39 reservoir(s) with 18,219 storage measurement(s), 1950–2025. Basin storage as of 2024-10-31 (the record's own end — reservoir records publish ~annually): 26,699 AF across 26 reservoir(s).
Why storage matters to the flow network
Storage change is real water the mass balance must credit — a losing reach beside a filling reservoir isn't losing water, it's banking it.
Reservoir map — how full is each vessel?
What “full” is measured against
Bubble size is proportional to a reservoir's record-high storage. Fill is its last recorded storage as a share of its surveyed capacity (USACE National Inventory of Dams) where a confident NID match exists — the tooltip names the matched dam — and as a share of its own record high otherwise. A wrong capacity would be worse than an honest record high, so only confident joins upgrade.
A dashed teal ring marks reservoirs reporting live DWR telemetry: their fill reflects yesterday's storage, is drawn as a dotted tail on charts, and is treated as provisional until the next verified HydroBase snapshot supersedes it.
A dashed red ring marks a dam under an active storage restriction from DWR's Dam Safety branch — the State Engineer has limited how much it may legally store, so a low fill can be an order, not a drought. Hazard class and inspection condition come from the same record, joined only where the dam carries this reservoir's WDID or a confident NID match — a wrong dam's restriction would be worse than none shown.
Basin storage, end of each water year
End-of-water-year totals; per-year reservoir counts shown because reporting coverage varies -- a total is only comparable to years with similar counts.
Largest reservoirs on record
Click a row to chart its full storage history, or open its dossier for rights, documents and dam-safety facts.
| Reservoir | Last recorded storage (AF) | As of | Full | Dam (DWR Dam Safety) | |
|---|---|---|---|---|---|
| ▸ MARSTON RES (0903501) | 18,271 | 2024-10-31 | — | — | dossier → |
| ▸ FROM WDID, SEE 0903501 (0803501) | 6,652 | 1988-10-31 | — | — | dossier → |
| ▸ BEAR CREEK LAKE (0903999) | 1,574 | 2024-10-31 | — | — | dossier → |
| ▸ BOWLES RESERVOIR (0904281) | 1,235 | 2024-10-31 | — | — | dossier → |
| ▸ SODA LAKES(EAST) RES 2 (0903815) | 1,207 | 2024-10-31 | — | — | dossier → |
| ▸ PATRICK RES (0904314) | 1,097 | 2024-10-31 | — | — | dossier → |
| ▸ KENDALL RES (0904304) | 720 | 1976-10-31 | — | — | dossier → |
| ▸ STARBUCK PARK RES 1 (0904317) | 694 | 1980-10-31 | — | — | dossier → |
Snow and runoff
Snow-water equivalent, WY2026
No snow on the ground — normal for the date; the snow year begins in October. The chart shows the full water year just ending.
| SNOTEL site | Elev (ft) | SWE (in) | Median (in) | % of median | Typical peak |
|---|---|---|---|---|---|
| Echo Lake | 10660 | 0.0 | 0.0 | — | April 29 (9.0 in) |
NRCS SNOTEL, daily. Sites are assigned to the district whose boundary contains them — the snow that feeds this district can also sit in a neighboring headwater district.
Two ways a snow year goes wrong (1999–2026)
A bad snow year here comes in two flavors (both called snow droughtA winter that shorts the snowpack. It happens two ways: a dry one, where the snow never comes, and a warm one, where near-normal snow falls but melts off weeks early -- and the river feels them differently.), and the river feels them differently. In 6 of the last 28 winters the snow never came — the pack peaked below 80% of its median. In 1 more, the snow came but left early — a near-normal peak melted out two weeks or more ahead of its usual date, sending the water down before the season needed it. This year was one of the dry ones: the pack peaked at 32% of median.
The snow never came: 2002, 2006, 2012, 2018, 2022, 2026. The snow left early: 2009.
Computed by this site from 1 SNOTEL site’ full daily records (NRCS AWDB, back to 1999). Each year is measured against each site’s own multi-decade median — not the 1991–2020 normal the chart above uses — so the 1980s grade against a fair baseline. Peak and melt-out need 85% of the season’s days on the record; thin years are dropped, not guessed. Derived from snow measurements alone — it cannot tell dry-from-warm causes apart, only what the snowpack did.
Runoff outlook — Bear Ck ab Evergreen
NRCS's final issue (2026-06-01) calls it even odds that at least 7 kAF arrives over 06-01 to 09-30 — 66% of a normal season; almost certainly at least 4, probably not more than 12. Our own record at this gage shows 2 kAF so far this period (partial record: 78 of 92 days). New forecasts begin in January. How to read these numbers →
| 90% chance of at least | 70% chance of at least | 50% chance of at least | 30% chance of at least | 10% chance of at least | Normal | Observed |
|---|---|---|---|---|---|---|
| 4 | 6 | 7 | 9 | 12 | 10 | 2* |
How good are these forecasts here? (2004–2025)
Grading every April issue against what the river then delivered, measured at this gage’s own record — 22 seasons: the median miss of the 50% forecast is 34%, with a high bias of 21%, and the observed volume landed inside the stated 10–90% band 68% of the time (a calibrated forecast would say 80%).
Computed by this site: NRCS's archived April issues (their period as issued each year) against the observed volume in DWR’s published record; years with under 90% daily coverage are dropped, not summed. A grade of the forecast, never of the forecasters — these are hard rivers. How this point ranks among every graded Colorado forecast point →
What April snow has meant for this river (1999–2026)
Across 28 measured years, the season’s water has loosely followed the April snowpack: a year opening April with 80% of median snow has typically gone on to deliver about 81% of a normal season (a snow-to-runoff elasticityHow strongly one number moves with another. A snow-to-runoff elasticity of 1.5 means a 10% shortfall in April snowpack has typically become a 15% shortfall in the season's water. of 0.7). In warm, early-melt years the river delivered a median of 89% of a normal season, against 101% in typical years — the timing of the melt matters, not just its size. This year opened April at 3% of median snow and delivered 24% of a normal season.
Computed by this site: the district’s April 1 SWE (% of each SNOTEL site’s own-record median) against the observed April–July volume at this gage (% of its median season) — a fixed window every year, unlike the forecast grades above, which use each issue’s own period. The slope is fit so single wild years can’t steer it (Theil–Sen, log space); years missing 10% of their days are dropped.
Legal
Decreed rights on this network run from 1859-11-01 to 2023-09-29. Of the 20 structures with a yield estimate, the median one’s senior right was in priority 81% of a median irrigation season and 31% in a dry one. 9 abandonment screens and 13 compliance flags are listed below as leads for review — a screen is not an abandonment and a flag is not a violation.
Rights on file: 2561 across 2058 structure(s); 0 structure(s) carry 0 court-case references. Advisory reading aids on public DWR data — not administrative or legal conclusions.
Is the river getting harder to divert from?
Over 1951–2025, administration on this district has been tightening: 2 of 3 measures (days under call, calls set, seniority of the controlling call) are moving toward more administration, none the other way.
The three measures, year by year
One row per whole calendar year inside the call record's coverage (75 years); partly-covered years are omitted rather than reported as quiet. Trend is Mann-Kendall with the same significance gate as every other trend on this site. Counted from DWR's published call record, which begins in the early 2000s: earlier years are absent, not quiet. A rise in the number of calls set can also reflect how finely an administrator records one episode, which is why days under call -- insensitive to that -- is the component to read first. Advisory summary of the public record, not an administrative finding.
| Year | Days under call | Calls set | Controlling priority (median) |
|---|---|---|---|
| 2014 | 309 | 220 | 1873-06-30 |
| 2015 | 329 | 144 | 1870-06-01 |
| 2016 | 366 | 202 | 1869-06-01 |
| 2017 | 365 | 261 | 1878-09-06 |
| 2018 | 365 | 315 | 1874-05-01 |
| 2019 | 365 | 294 | 1881-02-01 |
| 2020 | 366 | 230 | 1867-04-15 |
| 2021 | 360 | 192 | 1867-04-15 |
| 2022 | 365 | 245 | 1867-04-15 |
| 2023 | 331 | 237 | 1869-04-01 |
| 2024 | 366 | 223 | 1878-09-18 |
| 2025 | 365 | 361 | 1876-05-10 |
Right yield — how often could these rights actually divert?
Share of irrigation-season days each structure's rights were not called out, derived from the 22-year district-scoped call record (senior right = floor, junior right = ceiling constraint). Call-record-derived; DWR's own analysis governs where available.
| Structure | Senior priority | Senior right: median / dry yr | Junior right: median / dry yr |
|---|---|---|---|
| HARRIMAN DITCH (0900731) DWR↗ | 1861-06-01 | 100.0% / 82.2% | 5.1% / 0.0% |
| WARRIOR/HARRIMAN D TK CR (0900903) DWR↗ | 1862-04-16 | 100.0% / 51.9% | 23.8% / 0.0% |
| 0903687 DWR↗ | 1874-05-01 | 58.0% / 16.8% | 5.1% / 0.0% |
| BERGEN DITCH (0900535) DWR↗ | 1874-05-01 | 58.0% / 16.8% | 46.8% / 2.3% |
| BERGEN DITCH WEAVER CR (0901003) DWR↗ | 1885-10-24 | 46.8% / 2.3% | 46.8% / 2.3% |
| WARD DITCH (0900958) DWR↗ | 1861-12-01 | 100.0% / 61.2% | 46.8% / 4.7% |
| BROOKS DITCH (0900557) DWR↗ | 1898-03-15 | 20.1% / 0.0% | 20.1% / 0.0% |
| WARRIOR DITCH (0900963) DWR↗ | 1860-12-25 | 100.0% / 84.1% | 100.0% / 41.1% |
| MCBROOM DITCH (0900816) DWR↗ | 1859-11-01 | 100.0% / 100.0% | 5.1% / 0.0% |
| PIONEER UNION DITCH (0900862) DWR↗ | 1861-06-01 | 100.0% / 82.2% | 5.1% / 0.0% |
| LEWIS STROUSE DITCH (0900787) DWR↗ | 1863-03-01 | 100.0% / 44.4% | 100.0% / 44.4% |
| BEAR CR MIN FLOW (0902115) DWR↗ | 1994-11-03 | 5.1% / 0.0% | 5.1% / 0.0% |
Abandonment radar (9 screens)
Absolute rights with 10+ years of no recorded diversions. Screens only — storage, alternate points, and plan operations can explain nonuse lawfully. And diversion REPORTING itself only reached its modern level ~1975 — idleness that begins before then may be unreported use, not nonuse (flagged † below).
- OLSON BELL DITCH (0900995) DWR↗ (1862-03-15, 6.3 cfs decreed): last active 1956 — 50 years idle † predates modern reporting era — last recorded activity predates this basin's modern reporting era (~1975) -- early absence of record is weak evidence of nonuse
- CHURN DITCH (0900576) DWR↗ (1870-04-15, 0.3 cfs decreed): last active 1973 — 33 years idle † predates modern reporting era — last recorded activity predates this basin's modern reporting era (~1975) -- early absence of record is weak evidence of nonuse
- SPICKERMAN MIDDLE DITCH (0900902) DWR↗ (1862-11-01, 5.2 cfs decreed): last active 1977 — 29 years idle
- HINDRY DITCH (0900747) DWR↗ (1862-04-15, 3.9 cfs decreed): last active 1984 — 22 years idle
- LEWIS STROUSE DITCH (0900787) DWR↗ (1863-03-01, 15.9 cfs decreed): last active 1984 — 22 years idle
- WILLOW SPRINGS RES C1081 (0903332) DWR↗ (1963-11-29, 0.0 cfs decreed): last active 1988 — 18 years idle
- KINGFISHER LAKE C702 (0904297) DWR↗ (1955-03-15, 0.0 cfs decreed): last active 1988 — 18 years idle
- SODA LAKES(WEST) RES 1 (0904315) DWR↗ (1861-12-01, 0.0 cfs decreed): last active 1992 — 14 years idle
- QUAINTANCE RES (0903749) DWR↗ (1861-12-01, 0.0 cfs decreed): last active 1996 — 10 years idle
Compliance screens (13 advisory flags)
Screened 49 of 2058 structures with rights (68 have diversion history on file). A flag is a lead for expert review — augmentation plans, exchanges, and free-river conditions can make over-decree diversions lawful and are deliberately not modeled.
- BEAR CREEK LAKE (0903999) DWR↗: Observed p99 daily rate 294.8 cfs (max 542.7) exceeds total decreed absolute 1.0 cfs across 5556 recorded day(s).
- WARRIOR DITCH (0900963) DWR↗: Observed p99 daily rate 30.0 cfs (max 50.0) exceeds total decreed absolute 25.2 cfs across 28262 recorded day(s).
- SODA LAKES(WEST) RES 1 (0904315) DWR↗: Observed p99 daily rate 29.2 cfs (max 38.0) exceeds total decreed absolute 0.0 cfs across 984 recorded day(s).
- PIONEER UNION DITCH (0900862) DWR↗: Observed p99 daily rate 18.0 cfs (max 35.0) exceeds total decreed absolute 17.4 cfs across 36401 recorded day(s).
- SPICKERMAN MIDDLE DITCH (0900902) DWR↗: Observed p99 daily rate 6.0 cfs (max 6.0) exceeds total decreed absolute 5.2 cfs across 1276 recorded day(s).
- HINDRY DITCH (0900747) DWR↗: Observed p99 daily rate 5.0 cfs (max 32.0) exceeds total decreed absolute 3.9 cfs across 9546 recorded day(s).
- HODGSON DITCH (0900752) DWR↗: Observed p99 daily rate 5.0 cfs (max 8.0) exceeds total decreed absolute 1.7 cfs across 25102 recorded day(s).
- HARRIMAN DITCH LEFT IN STREAM AT HEADGAT (0902950) DWR↗: Observed p99 daily rate 3.2 cfs (max 6.4) exceeds total decreed absolute 2.1 cfs across 7683 recorded day(s).
- A ROONEY DERBY SPG 10 (0900500) DWR↗: Observed p99 daily rate 2.2 cfs (max 2.2) exceeds total decreed absolute 0.1 cfs across 818 recorded day(s).
- CHURN DITCH (0900576) DWR↗: Observed p99 daily rate 2.0 cfs (max 2.0) exceeds total decreed absolute 0.3 cfs across 892 recorded day(s).
Seniority (top structures by decreed rate)
| Structure | Senior priority date | Rights | Decreed abs (cfs) | Decreed abs (AF) | Conditional? |
|---|---|---|---|---|---|
| HARRIMAN DITCH (0900731) DWR↗ | 1861-06-01 | 25 | 1123.5 | 0 | — |
| WARRIOR/HARRIMAN D TK CR (0900903) DWR↗ | 1862-04-16 | 10 | 207.4 | 0 | — |
| 0903687 DWR↗ | 1874-05-01 | 10 | 155.8 | 1638 | — |
| BERGEN DITCH (0900535) DWR↗ | 1874-05-01 | 4 | 68.8 | 0 | — |
| BERGEN DITCH WEAVER CR (0901003) DWR↗ | 1885-10-24 | 1 | 44.1 | 0 | — |
| WARD DITCH (0900958) DWR↗ | 1861-12-01 | 10 | 27.5 | 30 | — |
| BROOKS DITCH (0900557) DWR↗ | 1898-03-15 | 1 | 27.0 | 0 | — |
| WARRIOR DITCH (0900963) DWR↗ | 1860-12-25 | 6 | 25.2 | 22 | — |
| MCBROOM DITCH (0900816) DWR↗ | 1859-11-01 | 2 | 18.1 | 0 | yes |
| PIONEER UNION DITCH (0900862) DWR↗ | 1861-06-01 | 9 | 17.4 | 0 | — |
| LEWIS STROUSE DITCH (0900787) DWR↗ | 1863-03-01 | 1 | 15.9 | 0 | — |
| BEAR CR MIN FLOW (0902115) DWR↗ | 1994-11-03 | 1 | 14.9 | 0 | — |
| GATES PIPELINE (0900663) DWR↗ | 1924-09-01 | 1 | 14.0 | 0 | — |
| INDEPENDENT HIGHLINE DITCH (0900767) DWR↗ | 1862-11-01 | 7 | 12.7 | 0 | yes |
| EVERGREEN WATER SYS (0900994) DWR↗ | 1860-12-25 | 7 | 12.0 | 0 | — |
No inventory or legal-document changes detected since the daily watch began.
Water-court filings this month (division-wide)
16 applications in the 2026-07 resume for this basin's division — new rights, changes, augmentation plans — from the water clerk's statutory monthly notice (C.R.S. 37-92-302), the earliest public signal of a new claim. Filings are division-wide, not district-filtered: check the county column. Full resume PDF at the Judicial Branch →
Anyone affected may file a statement of opposition until 2026-09-30 (30 days left). C.R.S. 37-92-302(3): due by the last day of the second month following the filing month — computed, not legal advice; confirm with the water clerk.
All 16 filings, with excerpts
| Case | What it asks | County | Excerpt |
|---|---|---|---|
2026CW3054
|
new underground right | — | CASE NUMBER 2026CW3054 BRIAN ROBERT WEISSEG LIVING TRUST DATED MAY 15, 2011, AMANDA VINTON WEISSEG LIVING TRUST DATED DECEMBER 10, 2014 , c/o Brian Robert Weisseg and Amanda Vinton Weisseg, c/o John P. Justus, CURTIS, JUSTUS, & ZAHEDI, LLC, 1333 W. 120th Ave.,… |
2026CW3062
|
— | — | CASE NUMBER 2026CW3062 PRI #2, LLC (“Applicant”), 2138 Flying Horse Club Drive, Colorado Springs, Colorado 80921. Please forward all correspondence or inquiries regarding this matter to Attorneys for Applicant: Alan G. Hill; Ashley Pollock Zahedi; Nicoli R. Bo… |
2026CW3106
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— | — | CASE NUMBER 2026CW3106 STANLEY E. KELLOGG, PO Box 1935 Grand Lake, CO 80447. Direct all pleadings and correspondence to Chris D. Cummins and Sedona E. Chavez, Monson, Cummins, Shohet & Farr, LLC, 13511 Northgate Estates Dr., Ste. 250, Colorado Springs, CO 8092… |
2026CW3107
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— | — | CASE NUMBER 2026CW3107 Colorado Division of Parks and Wildlife - Order for Change of Venue to WD2.… |
2026CW3108
0107223 0107980 0107981 |
reasonable diligence, make absolute | — | CASE NUMBER 2026CW3108 WEITZEL LAND LLC , 28271 Road L, Brush, Colorado 80723, Lawrence Custer Grasmick Jones & Donovan LLP Attorneys for Applicant, Weitzel Land LLC Ryan M. Donovan, #44435 Regan M. O’Donnell, #62937 APPLICATION TO MAKE CONDITIONAL WATER RIGHT… |
2026CW3109
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change of water right | — | CASE NUMBER 2026CW3109 ROBERT AND ALLISON JOHNSON, 1100 Shoreline Dr, Windsor, CO 80550, 970-581-2994. Please send all further pleadings to: Daniel K. Brown, Esq. and Whitney Phillips, Esq. Fischer, Brown, Bartlett, Larsen & Irby, P.C., 1319 E. Prospect Road, … |
2026CW3110
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reasonable diligence | — | CASE NUMBER 20 26CW3110 (Case No. 19CW3038, 09CW279) THE CITY OF AURORA , COLORADO, a municipal corporation of the Counties of Adams, Arapahoe and Douglas acting by and through its Utility Enterprise (“Aurora" or "Applicant"). APPLICATION FOR A FINDING OF REAS… |
2026CW3111
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— | IN WELD | CASE NUMBER 2026CW3111 CONCERNING THE APPLICATION FOR WATER RIGHTS OF THE COLORADO DIVISION OF PARKS AND WILDLIFE AND THE PARKS AND WILDLIFE COMMISSION, IN WELD COUNTY ; Colorado Division of Parks and Wildlife and the Parks and Wildlife Commission (“CPW”), 606… |
2026CW3112
0904297 |
reasonable diligence | ASONABLE DILIGENCE IN JEFFERSON | CASE NUMBER 2026CW3112 (2019CW3233, 2013CW3067, 2002CW138) APPLICATION FOR FINDING OF REASONABLE DILIGENCE IN JEFFERSON COUNTY. RED ROCKS COUNTRY CLUB c/o Richard J. Mehren, Cameron J. Abatti, Moses, Wittemyer, Harrison and Woodruff, P.C., 2595 Canyon Boulevar… |
2026CW3113
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change of water right | ATE POINT OF DIVERSION IN WELD | CASE NUMBER 20 26CW3113 APPLICATION FOR CHANGE OF WATER RIGHT TO ADD ALTERNATE POINT OF DIVERSION IN WELD COUNTY. 1. Name and Address of Applicant . GWIP, LLC, 252 Clayton Street, Fourth Floor, Denver, Colorado 80206. Copies of all pleadings and other correspo… |
2026CW3114
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reasonable diligence | THE | CASE NUMBER 2026CW3114 CONCERNING THE APPLICATION FOR WATER RIGHTS OF THE COUNTY OF BOULDER (SUCCESSOR TO CEMEX, INC.) APPLICATION FOR FINDING OF REASONABLE DILIGENCE IN BOULDER COUNTY . Attorneys for applicant: Andrea L. Benson, Esq., Reg. No. 33176, Gilbert … |
2026CW3115
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plan for augmentation, new underground right | — | CASE NUMBER 2026CW3115 DORADO AND RAMIRO ROSALES , 14551 Imboden Rd, Hudson, CO 80642. James J Petrock, John D Buchanan, Hayes Poznanovic Korver LLC, 700 17 th Street, Suite 1800, Denver, CO 80202. APPLICATION FOR UNDERGROUND WATER RIGHTS FROM NONTRIBUTARY AND… |
2026CW3116
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new underground right | — | CASE NUMBER 2026CW3116 ROBERT D HOFFMANN AND AMY LEE HOFFMANN , 4962 N State Highway 67, Sedalia, CO, 80135. Philip E. Lopez, Eric K. Trout, Fairfield and Woods, P.C., 1801 California Street, Suite 2600, Denver, CO, 80202. APPLICATION FOR UNDERGROUND WATER RIG… |
2026CW3117
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reasonable diligence | — | CASE NUMBER 20 26CW3117 LOWER POUDRE AUGMENTATION COMPANY, THE NEW CACHE LA POUDRE IRRIGATING COMPANY, AND THE CACHE LA POUDRE RESERVOIR COMPANY, 33040 Railroad Avenue, P.O. Box 104. Lucerne, CO 80646, (970) 352-0222. Please send all further pleadings to: Bren… |
2026CW3118
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— | DOUGLAS | CASE NUMBER 2026CW3118 ROBERT H BASTIAANS AND JANICE A YUVAN, 10440 Meadow Run, Parker, CO, 80134. Philip E. Lopez, Eric K. Trout, Fairfield and Woods, P.C., 1801 California Street, Suite 2600, Denver, CO, 80202. APPLICATION FOR AMENDMENT OF A PRIOR DECREE IN … |
2026CW8
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new storage right | RIGHT IN CLEAR CREEK | CASE NUMBER 2026CW8 JONELLE AND JOHN PAUL HADDAD, P.O. Box 139, Dumont, CO 80436. 720 -951-1183. APPLICATION FOR ABSOLUTE/CONDITIONAL WATER STORAGE RIGHT IN CLEAR CREEK COUNTY. Date of original decree: 07-30-20 in case 20CW7, WD1. Haddad Pond fka Duke Pond loc… |
Active substitute water supply plans in this district
Temporary State Engineer approvals to divert out of priority (37-92-308 / 37-90-137). A structure operating under one behaves differently under a call than its decreed rights alone suggest — the priority tables above don't know about these; this list does. Source: DWR’s active-SWSP register, refreshed nightly.
| Plan | Type | Status | Expires | Structure | Documents |
|---|---|---|---|---|---|
| STEIGER WELL | 37-92-308(5) PLANS LESS THAN 5 YEARS | Approved | 2026-03-31 | — | plan file |
| HICKS NO. 1 DITCH ALTERNATE POINT | 37-92-308(4) PLAN PENDING COURT APPLICATION | Approved | 2026-04-30 | 0902625 | plan file |
| HOLCIM MORRISON QUARRY | 37-92-308(4) PLAN PENDING COURT APPLICATION | Approved | 2027-07-31 | — | plan file |
| MOUNT VERNON COUNTRY CLUB METRO DISTRICT | 37-92-308(5) PLANS LESS THAN 5 YEARS | Pending | — | — | plan file |
| RED ROCKS COUNTRY CLUB - WILLOW SPRINGS RESERVOIR | 37-92-308(5) PLANS LESS THAN 5 YEARS | Pending | — | — | plan file |
| EXPERIENCE INSTITUTE COLORADO | 37-92-308(5) PLANS LESS THAN 5 YEARS | Withdrawn | — | — | plan file |
Call cascade
If a call were placed at a given seniority, which structures in this basin would be out of priority, and how much of their decreed rate would be curtailed? Computed from this basin's cached decrees.
What this does and doesn't model. Seniority arithmetic only: every right junior to the call is treated as curtailed. It does not model reach applicability — structures downstream of the calling point are not administered by it — and it applies no futile-call judgment. Read it as “who is junior to this date, and by how much,” not as a prediction of what the Division Engineer would actually order.
Pick a calling right
Real decrees from this basin, ordered by administration number — that is, by actual seniority. The years will look out of order, and that is correct: an administration number encodes the adjudication date as well as the appropriation date, so a right appropriated in 1970 can be administered ahead of one from 1950. A senior call curtails almost everything; a junior one curtails almost nothing.
Or enter an administration number directly
DWR administration numbers encode appropriation and adjudication dates; lower is more senior.
| Gage ⇅ | Station ⇅ | Avg cfs Aug 10–Aug 16 ⇅ |
% Hist Median ⇅ | Rank ⇅ | Δ1wk ⇅ | Δ4wk ⇅ | Yrs ⇅ | Status ⇅ |
|---|---|---|---|---|---|---|---|---|
| BCROUTCO | BEAR CREEK RESERVOIR (OUTFLOW) | 1.2 | 7% | 0 | +1 | -0 | 27.9 | SHORT_RECORD |
| 0900862A | PIONEER UNION DITCH | 1.4 | 65% | 0 | -1 | -1 | 5.0 | SHORT_RECORD |
| BEROUTCO | BEERS SISTER RESERVOIR OUTLET | 0.0 | 0% | 0 | +0 | +0 | 7.7 | SHORT_RECORD |
| BP2OUTCO | BUCHANAN POND 2 OUTFLOW | 0.0 | 0% | 0 | +0 | +0 | 7.4 | SHORT_RECORD |
| EVRWATCO | EVERGREEN WATER SYSTEM | 1.7 | 75% | 0 | -0 | -0 | 6.1 | SHORT_RECORD |
| EVRBYPCO | EVERGREEN WATER SYSTEM BYPASS RETURN | 0.0 | 0% | 0 | +0 | +0 | 6.1 | SHORT_RECORD |
| 0900535A | BERGEN DITCH | 0.0 | 0% | 0 | +0 | +0 | 2.6 | SHORT_RECORD |
| 0904274A | BERGEN #1 WEST RESERVOIR INFLOW | 0.0 | 0% | 0 | +0 | +0 | 4.0 | SHORT_RECORD |
| 0900903A | WARRIOR/HARRIMAN DITCH TURKEY CRK HG | 0.0 | 0% | 0 | +0 | +0 | 3.1 | SHORT_RECORD |
| 0904281B | BOWLES RESERVOIR OUTLET | 0.7 | 54% | 0 | -2 | +1 | 2.4 | SHORT_RECORD |
| 0900767A | RRCC INDEPENDENT HL | 0.2 | 64% | 33 | +0 | +0 | 2.7 | SHORT_RECORD |
| MCBDITCO | MCBROOM DITCH | 1.3 | 98% | 41 | +0 | +0 | 10.9 | SHORT_RECORD |
| 0900752A | HODGSON DITCH | 0.4 | 100% | 50 | +0 | +0 | 3.1 | SHORT_RECORD |
| TURBCRCO | TURKEY CREEK ABOVE BEAR CREEK LAKE NEAR MORRISON | 2.0 | 102% | 50 | +2 | +1 | 10.9 | SHORT_RECORD |
| WRDDITCO | WARD DITCH | 3.9 | 105% | 56 | +4 | +4 | 6.8 | SHORT_RECORD |
| HRRDITCO | HARRIMAN DITCH | 8.0 | 107% | 61 | +6 | +6 | 10.6 | SHORT_RECORD |
| 0904295A | HARRIMAN RESERVOIR OUTFLOW | 0.8 | 198% | 64 | -1 | -2 | 3.2 | SHORT_RECORD |
| 0802901A | MCBROOM DITCH TAIL RETURN | 0.8 | 106% | 65 | +0 | +0 | 3.1 | SHORT_RECORD |
| SODATCCO | SODA LAKES OUTLET TO TURKEY CREEK | 1.7 | 232% | 79 | +0 | +0 | 5.9 | SHORT_RECORD |
| WARDITCO | WARRIOR DITCH | 5.3 | 104% | 91 | +2 | +2 | 9.8 | SHORT_RECORD |
| SODAINCO | SODA LAKES INFLOW | 3.0 | 754% | 100 | +3 | +3 | 5.8 | SHORT_RECORD |
| SODA15CO | SODA LAKES OUTLET TO CONDUIT 15 | 0.8 | 0% | 100 | +0 | -1 | 5.8 | SHORT_RECORD |
| GENMPLCO | GENESEE MOUNTAIN PL | 1.0 | 116% | 100 | +0 | +0 | 5.4 | SHORT_RECORD |
| 0902251A | JOHNSON LATERAL PINEHURST INFLOW | 3.2 | 182% | 100 | +1 | +1 | 4.8 | SHORT_RECORD |
| 0900955A | BBF POND INLET | 0.8 | 113% | 100 | +0 | +0 | 2.7 | SHORT_RECORD |
| 0903343A | BBF POND OUTLET | 1.0 | 129% | 100 | +0 | +0 | 2.7 | SHORT_RECORD |
| 0904281A | BOWLES RESERVOIR INLET | 0.4 | 478% | 100 | +0 | +0 | 2.4 | SHORT_RECORD |
| 0902966A | EMD TROUBLESOME CREEK ABOVE WWTP | 0.1 | 114% | 100 | +0 | +0 | 1.5 | SHORT_RECORD |
| BCREVRCO | BEAR CREEK ABOVE EVERGREEN, CO | 15.5 | 45% | 0 | +10 | +10 | 42.0 | OK |
| BCRMORCO | BEAR CREEK AT MORRISON | 17.5 | 42% | 4 | +13 | +13 | 108.5 | OK |
| BCRABCCO | BEAR CREEK ABOVE BEAR CREEK LAKE NEAR MORRISON, CO | 5.7 | 33% | 21 | +2 | +1 | 30.8 | OK |
| BCRSHECO | BEAR CREEK AT SHERIDAN | 13.6 | 66% | 34 | +9 | +8 | 99.5 | OK |
Call details in gantt above
12 alert(s) · 28 warning(s) · 12 info. Each gage contributes at most one flag per category (its single most-severe match), so this list shouldn't multiply-count the same underlying condition.