Underwater Outlet
TOTAL IMMERSED LENGTH: 12.80 m
HEIGHT: 1,91 m ID 2.29 m OD
WIDTH: (Circular)
DEPTH AT BOTTOM OF STRUCTURE: At installation stage: 19.2 m
At maximum water level in reservoir: 49.7 m
FABRICATION METHOD:
Element composed of seven segments each 1.83 m
long, constructed at work site 56 km from the reservoir.
Corrugated metal pipe was used for inner and outer
casting form. Element was prestressed with 10 steel
rods. Tunnel element was launched from a ramp, 18.3 m
wide with 12% slope.
HEIGHT: 1,91 m ID 2.29 m OD
WIDTH: (Circular)
DEPTH AT BOTTOM OF STRUCTURE: At installation stage: 19.2 m
At maximum water level in reservoir: 49.7 m
FABRICATION METHOD:
Element composed of seven segments each 1.83 m
long, constructed at work site 56 km from the reservoir.
Corrugated metal pipe was used for inner and outer
casting form. Element was prestressed with 10 steel
rods. Tunnel element was launched from a ramp, 18.3 m
wide with 12% slope.
Lake Piru, California,
United States
United Water Conservation District, Santa Paula
Owner
12.8m
12.8m
At installation stage: 19.2 m At maximum water level in reservoir: 49.7 m
Project construction
1978-04-30
1
One tube
1.91m
circular
Prefabricated concrete tunnel element was installed in vertical position.
Element composed of seven segments each 1.83 m
long, constructed at work site 56 km from the reservoir.
Corrugated metal pipe was used for inner and outer
casting form. Element was prestressed with 10 steel
rods. Tunnel element was launched from a ramp, 18.3 m
wide with 12% slope.
long, constructed at work site 56 km from the reservoir.
Corrugated metal pipe was used for inner and outer
casting form. Element was prestressed with 10 steel
rods. Tunnel element was launched from a ramp, 18.3 m
wide with 12% slope.
Weight controlled by ballast water I compressed air. Position controlled by floating
platform consisting of two rafts each 7.3 m square.
platform consisting of two rafts each 7.3 m square.
Underwater concrete.
Founded on upper end of underground outlet section.