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

LITTLETON BOAT CHUTE NO 4

spine entity 0cba5b5a-daf9-4aca-b017-aed68238439fWDID 0801999dependency report →
Active signals
2
2 instances
Max priority
89.6
Last observed
2026-09-30
Signal historyall resolved detections on this record
PriSignalDetailScoreObserved
90Critical call exposureLITTLETON BOAT CHUTE NO 4 (1991 priority) carries 3,294.2 day-equivalents of observed call exposure from 87 senior caller(s); dominant caller SOUTH PLATTE RIVER COMPACT (573.1 day-eq). 2630 season-days curtailed in the last five seasons.89.42026-09-30 00:00:00
85Season call nowcast: expected curtailmentLITTLETON BOAT CHUTE NO 4, 2026 season outlook: Apr 1 SWE 61% of median → severe-class year; expected curtailment ~212 of 214 season days from the basin's administration record. Dominant caller SOUTH PLATTE RIVER COMPACT: P(call by Jun 15) = 1 over 6 comparable seasons.100.02026-07-18 12:00:00
Record payload
wdid
0801999
state
CO
county
ARAPAHOE
admin_no
52595.51713
division
1
latitude
39.580614
right_id
0801999-52595.51713
longitude
-105.033115
county_fips
08005
identifiers
{"wdid":"0801999"}
decreed_uses
56
legal_status
Absolute
water_source
SOUTH PLATTE RIVER
seniority_rank
37551
structure_name
LITTLETON BOAT CHUTE NO 4
structure_type
MINIMUM FLOW
water_district
8
decreed_rate_cfs
100
score_components
{"callers":87,"recency":1,"exposure_depth":0.82,"day_equivalents":3294.2,"dominant_caller":"SOUTH PLATTE RIVER COMPACT","season_days_5yr":2630}
decreed_volume_af
null
appropriation_date
1991-08-02
Structure & decree profile
structure
LITTLETON BOAT CHUTE NO 4 (WDID 0801999)
type / source
MINIMUM FLOW · SOUTH PLATTE RIVER
administration
Division 1 · Water District 8 · ARAPAHOE County
decreed rights
1 · senior priority 1991-08-02 (admin 52595.51713)
decreed capacity
100 cfs
status
Absolute
Controlling senior callers (observed)
SOUTH PLATTE RIVER COMPACT
573.1 day-equivalents · 153 episodes over 36 seasons · last 2026 · confidence 0.98
BURLINGTON D RIVER HEADGATE
420.7 day-equivalents · 584 episodes over 37 seasons · last 2026 · confidence 0.98
HARMONY DITCH 2
359.7 day-equivalents · 97 episodes over 16 seasons · last 2026 · confidence 0.98
EVANS NO 2 DITCH
252.1 day-equivalents · 277 episodes over 33 seasons · last 2026 · confidence 0.98
LOWER LATHAM DITCH
164.6 day-equivalents · 80 episodes over 17 seasons · last 2026 · confidence 0.98
Dependencies & control
owner evidence
LITTLETON, CITY OF · corroborated (0.72) · CDSS structure associated contacts