| Elwha River Bridge
Port Angeles, WA
Malcolm Drilling constructed four 3M diameter drilled
shafts for the Elwha River Bridge near Port Angeles,
WA utilizing a 3M Leffer oscillator and a Liebherr 883
dig crane. Support was provided by a Link Belt LS-218
service crane. The shafts were constructed to depths
up to 82’ in river cobbles and boulders. These shafts
all featured permanent slip-in casing in the upper portion
of the shafts to facilitate the column concrete transition
pours placed later by the General Contractor.
Additionally, MDCI utilized a Bauer BG-40 top-drive
drill rig to construct 4’ diameter abutment shafts in
rock and 6’ diameter shafts for the Pedestrian Bridge.
Some of the 6’ shafts were advanced using a Leffer 2M
oscillator and segmental casing in order to address
caving and sloughing in the upper portion of the shafts.
In photo #2 the new bridge structure is nearing completion.
Note Pedestrian Bridge that is suspended beneath the
2-lane traffic bridge.
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