Ayala Projects

Description of Work: Hand mine 42-inch casing sleeve
while removing 66 feet of existing 12-inch VCP sewer pipe
to be replaced which was damaged while installing
tiebacks for the bridge widening. 42-inch casing could not
be installed using auguring method due to space
limitations for a bore pit.

Passing freight train illustrates proximity to
live rail line where bore pit was installed.

Location:

Lankershim Boulevard and 101 (Hollywood)

Freeway - Studio City, California

Description of Work: Bored 414 feet and 230 feet of 72-
inch diameter steel casing beneath the Hollywood
Freeway to house a 60-inch diameter steel water pipeline.

Special requirements included a 40-hour
Hazwhopper Training, full body personal
protective equipment, certified industrial
hygienist on-site full-time monitoring
hazardous conditions.

Worker removes collapsed sewer line by hand
under contract to Beador Construction Company
and the Alameda Corridor Transportation
Authority.

Ayala Boring's 20-foot deep boring and
jacking pit where a Hollywood Freeway on
ramp can be seen in the distance.

40-foot auger segments are used to attain the

414-foot shaft length. Ayala manufactures their
own augers at their Fontana, California facility.

Del Amo Bl. at Alameda Street Grade Separation for the
Alameda Corridor

Description of Work: Direct jacked 200 feet of 102-inch
RCP approximately 20-feet deep under railroad tracks.

Hoisting dirt buggy out of jacking pit with 65-
ton P&H All Terrain Crane. Overall view from
ground level. Columns in background are
part of new freeway overpass under
construction.

Looking into pipe standing on the bottom of a

20-foot deep jacking pit. Yellow flex ducts
feed ventilation into work area for personnel.
Track at bottom is for Dirt Buggy Train.

Looking into pipe. Rigid duct line at the top of

RCP is providing ventilation for personnel.

Inside the pipe near the head of the tunnel,

conveyor is loading spoil into Dirt Buggy Train.

Operator in front at Tunnel Boring Machine

controls conveyor, loading dirt into Dirt Buggy

Train.

Description of Work: Total of 1,200 feet of 72-inch casing

bored under busy intersections in various locations.

Lowering a 20-foot section of 72-inch
casing with a 65-ton P&H All Terrain
Crane. Tanks behind pipe are part of
elaborate dewatering system
designed to treat and remove
contaminated groundwater.

Looking down into 25-foot deep bore pit
with beam and plate shoring.

Another view of the bore pit.
Hose and valve are part of the
dewatering system.

Excavating contaminated soil

from the bore pit into containers

for removal to special dumpsite.

Description of Work: 1195 LF of pipe to be installed

for Union Pacific Railroad Company.

Boring 220 feet of 96-inch casing under Union Pacific

Railroad, using a Rotary Tunnel Boring Machine. The
white machine sitting on top of the concrete structure is the

Hydraulic Power Unit for the Tunnel Boring Machine and

Jacking Sled with a capacity of 1,053,312 pounds of
jacking force. Crane is a 35-ton Grove All Terrain.

Boring 125 feet of 84-inch casing under Union

Pacific Railroad, using a 48-inch Track Boring

Machine with capacity of 785,400 pounds of

jacking force.

Description of Work: Bored 2 each 300' x 30" diameter
steel casings under the I-10 Fwy. Installed a 12" ductile
iron pipeline in one location for sewer and a 16" ductile
iron pipeline in the other location for water.

40-ton all terrain crane claming out spoil from
bore pit. I-10 Fwy. in background.

Location:

Desert Hot Springs, California, approximately
1/4 mile east of Indian Avenue at I-10 Fwy.

View of bore pit with 40-ton crane hoisting a
section of casing into pit. Sections of pipe
behind crane are to be bored.

54" track boring machine pushing a
section of pipe. This machine has an
adaptor to 30" casing and uses
1,005,300 pounds of jacking force.