|
gptkbp:instance_of
|
gptkb:dam
|
|
gptkbp:academic_programs
|
by John R. Freeman
|
|
gptkbp:capacity
|
117,000 acre-feet
|
|
gptkbp:community_engagement
|
ongoing
|
|
gptkbp:community_impact
|
gptkb:significant
|
|
gptkbp:community_involvement
|
strategies developed
|
|
gptkbp:constructed_in
|
1923
|
|
gptkbp:construction_cost
|
$4.5 million
|
|
gptkbp:construction_material
|
concrete and steel
|
|
gptkbp:construction_method
|
gravity dam design
|
|
gptkbp:construction_started
|
3 years
|
|
gptkbp:dam_monitoring
|
automated systems
|
|
gptkbp:dam_type
|
regular
concrete dam
|
|
gptkbp:emergency_services
|
preparedness plans
|
|
gptkbp:environmental_impact
|
conducted
controversial
|
|
gptkbp:flood_control
|
gptkb:Yes
managed
|
|
gptkbp:has_meetings
|
held
|
|
gptkbp:height
|
30 feet
430 feet
1,600 feet
130 meters
|
|
gptkbp:historical_significance
|
gptkb:Yes
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Hetch Hetchy Dam
|
|
gptkbp:land_ownership
|
completed
|
|
gptkbp:last_eruption
|
upgraded
|
|
gptkbp:legal_issue
|
faced
|
|
gptkbp:location
|
gptkb:California
|
|
gptkbp:nearby_national_park
|
gptkb:Yosemite_National_Park
|
|
gptkbp:operator
|
gptkb:San_Francisco_Water_Department
|
|
gptkbp:owner
|
gptkb:San_Francisco_Public_Utilities_Commission
|
|
gptkbp:part_of
|
gptkb:Hetch_Hetchy_Water_System
|
|
gptkbp:power_source
|
gptkb:Yes
|
|
gptkbp:public_access
|
limited
|
|
gptkbp:purpose
|
water supply
|
|
gptkbp:recreation
|
fishing
hiking
boating
camping
|
|
gptkbp:reliability
|
high
|
|
gptkbp:reservoir
|
gptkb:Hetch_Hetchy_Reservoir
|
|
gptkbp:river
|
gptkb:Tuolumne_River
|
|
gptkbp:spillway_type
|
gptkb:Yes
controlled
|
|
gptkbp:sustainability_practices
|
adopted
|
|
gptkbp:type
|
concrete gravity dam
|
|
gptkbp:water_management
|
gptkb:Yes
secured
regulated
practices implemented
|
|
gptkbp:water_quality
|
met
monitored
|
|
gptkbp:water_requirement
|
gravity-fed system
regulated by gates
|
|
gptkbp:water_source
|
gptkb:Hetch_Hetchy_Valley
gptkb:Yes
|
|
gptkbp:water_supply_area
|
gptkb:San_Francisco_Bay_Area
|
|
gptkbp:wildlife
|
gptkb:Yes
|
|
gptkbp:bfsParent
|
gptkb:Hetch_Hetchy_Valley
|
|
gptkbp:bfsLayer
|
5
|