BasinWise — Dependency & Reliability Intelligencerelease v1 · genome v1 · run run_water_rights_v133 signals92,201 instances
Overview / Signals / structure

SOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR

spine entity f699158d-8a80-4b6e-9616-f1bfadacf658WDID 2302903dependency report →
Active signals
3
22 instances
Max priority
73.5
Last observed
2026-09-30
Signal historyall resolved detections on this record
PriSignalDetailScoreObserved
74Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1881 priority) carries 573.1 day-equivalents of observed call exposure from 25 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 471 season-days curtailed in the last five seasons.48.62026-09-30 00:00:00
67Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1884 priority) carries 851.5 day-equivalents of observed call exposure from 36 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 706 season-days curtailed in the last five seasons.52.82026-09-30 00:00:00
67Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1882 priority) carries 671.9 day-equivalents of observed call exposure from 27 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 560 season-days curtailed in the last five seasons.50.12026-09-30 00:00:00
66Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1877 priority) carries 489 day-equivalents of observed call exposure from 20 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 411 season-days curtailed in the last five seasons.46.52026-09-30 00:00:00
66Season call nowcast: expected curtailmentSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR, 2026 season outlook: Apr 1 SWE 61% of median → severe-class year; expected curtailment ~98 of 214 season days from the basin's administration record. Dominant caller EVANS NO 2 DITCH: P(call by Jun 15) = 1 over 6 comparable seasons.79.42026-07-18 12:00:00
66Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1882 priority) carries 721.2 day-equivalents of observed call exposure from 31 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 596 season-days curtailed in the last five seasons.50.82026-09-30 00:00:00
65Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1877 priority) carries 489 day-equivalents of observed call exposure from 20 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 411 season-days curtailed in the last five seasons.46.52026-09-30 00:00:00
65Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1880 priority) carries 562.5 day-equivalents of observed call exposure from 25 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 470 season-days curtailed in the last five seasons.48.42026-09-30 00:00:00
65Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1877 priority) carries 489 day-equivalents of observed call exposure from 20 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 411 season-days curtailed in the last five seasons.46.52026-09-30 00:00:00
65Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1873 priority) carries 1,304.6 day-equivalents of observed call exposure from 43 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 1035 season-days curtailed in the last five seasons.59.62026-09-30 00:00:00
65Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1872 priority) carries 1,304.6 day-equivalents of observed call exposure from 43 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 1035 season-days curtailed in the last five seasons.59.62026-09-30 00:00:00
65Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1873 priority) carries 1,304.6 day-equivalents of observed call exposure from 43 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 1035 season-days curtailed in the last five seasons.59.62026-09-30 00:00:00
65Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1876 priority) carries 1,304.6 day-equivalents of observed call exposure from 43 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 1035 season-days curtailed in the last five seasons.59.62026-09-30 00:00:00
65Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1879 priority) carries 559.4 day-equivalents of observed call exposure from 24 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 465 season-days curtailed in the last five seasons.48.42026-09-30 00:00:00
65Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1877 priority) carries 1,304.6 day-equivalents of observed call exposure from 43 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 1035 season-days curtailed in the last five seasons.59.62026-09-30 00:00:00
58Season call nowcast: expected curtailmentSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR, 2026 season outlook: Apr 1 SWE 61% of median → severe-class year; expected curtailment ~104 of 214 season days from the basin's administration record. Dominant caller EVANS NO 2 DITCH: P(call by Jun 15) = 1 over 6 comparable seasons.81.32026-07-18 12:00:00
58Season call nowcast: expected curtailmentSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR, 2026 season outlook: Apr 1 SWE 61% of median → severe-class year; expected curtailment ~91 of 214 season days from the basin's administration record. Dominant caller EVANS NO 2 DITCH: P(call by Jun 15) = 1 over 6 comparable seasons.77.12026-07-18 12:00:00
58Season call nowcast: expected curtailmentSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR, 2026 season outlook: Apr 1 SWE 61% of median → severe-class year; expected curtailment ~99 of 214 season days from the basin's administration record. Dominant caller EVANS NO 2 DITCH: P(call by Jun 15) = 1 over 6 comparable seasons.79.72026-07-18 12:00:00
56Augmentation condition not verifiedSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR: the decree requires augmentation coverage for out-of-priority depletions, but NO plan membership is found. Verify coverage before relying on this supply — absent a plan, curtailment is immediate on the next call.63.62026-07-18 12:00:00
53Augmentation condition not verifiedSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR: the decree requires augmentation coverage for out-of-priority depletions, but NO plan membership is found. Verify coverage before relying on this supply — absent a plan, curtailment is immediate on the next call.59.22026-07-18 12:00:00
50Augmentation condition not verifiedSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR: the decree requires augmentation coverage for out-of-priority depletions, but NO plan membership is found. Verify coverage before relying on this supply — absent a plan, curtailment is immediate on the next call.56.42026-07-18 12:00:00
50Augmentation condition not verifiedSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR: the decree requires augmentation coverage for out-of-priority depletions, but NO plan membership is found. Verify coverage before relying on this supply — absent a plan, curtailment is immediate on the next call.55.82026-07-18 12:00:00
Record payload
wdid
2302903
state
CO
county
PARK
admin_no
11597
division
1
latitude
38.99679
right_id
2302903-11597.00000
longitude
-105.680641
county_fips
08093
identifiers
{"wdid":"2302903"}
decreed_uses
12345678AQ
legal_status
Absolute
water_source
SOUTH PLATTE RIVER
seniority_rank
5175
structure_name
SOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR
structure_type
STREAM GAGE
water_district
23
decreed_rate_cfs
35.8
score_components
{"callers":25,"recency":1,"exposure_depth":0.14,"day_equivalents":573.1,"dominant_caller":"EVANS NO 2 DITCH","season_days_5yr":471}
decreed_volume_af
null
appropriation_date
1881-10-01
Structure & decree profile
structure
SOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (WDID 2302903)
type / source
STREAM GAGE · SOUTH PLATTE RIVER
administration
Division 1 · Water District 23 · PARK County
decreed rights
18 · senior priority 1877-06-01 (admin 10014.00000)
decreed capacity
101 cfs
status
Absolute
Controlling senior callers (observed)
EVANS NO 2 DITCH
3,823.2 day-equivalents · 3348 episodes over 30 seasons · last 2026 · confidence 0.98
WESTERN MUTUAL DITCH
1,837.8 day-equivalents · 1548 episodes over 18 seasons · last 2026 · confidence 0.98
LOWER LATHAM DITCH
1,553.5 day-equivalents · 793 episodes over 17 seasons · last 2026 · confidence 0.98
STRONTIA SPRINGS DIVERSION DAM
824.7 day-equivalents · 203 episodes over 3 seasons · last 2026 · confidence 0.56
LOWER PLATTE BEAVER D
720.1 day-equivalents · 1054 episodes over 28 seasons · last 2026 · confidence 0.98
Dependencies & control
owner evidence
CITY OF AURORA · corroborated (0.72) · CDSS structure associated contacts
owner evidence
CITY OF AURORA · corroborated (0.72) · CDSS structure associated contacts
owner evidence
CITY OF AURORA · corroborated (0.72) · CDSS structure associated contacts