Redmond Extension

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Redmond, Washington” el_class=”” el_style=””][/bt_header][bt_header superheadline=”” headline=”Problem” headline_size=”medium” dash=”no” subheadline=”” el_class=”” el_style=””][/bt_header][bt_text]

A King County sewer line runs directly under a new proposed Soundtransit track embankment and was susceptible to the resulting load/settlement.

[/bt_text][bt_header superheadline=”” headline=”The Solution” headline_size=”medium” dash=”no” subheadline=”” el_class=”” el_style=””][/bt_header][bt_text]

Lightweight Cellular Concrete, a low-density fill material in between MSE walls was chosen as the new embankment concept. This substantially reduced the fill loads on the sewer line creating a net zero load increase under the raised Soundtransit track.  The Lightweight Cellular Concrete design resolved the damage/settlement concerns for the existing King County sewer. 

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