They'll be driving on foam. Giant blocks of foam - known as expanded polystyrene -- are being used in construction projects across the Puget Sound, including the new State Route 99 ramps drivers ...

Giant foam blocks are seen along I-5 between Portland Avenue and Port of Tacoma road in Tacoma, Wash., on Friday, Aug. 10. Joshua Bessex joshua.bessex@gateline.com Q: I’ve seen large (foam ...

It looks like the construction workers are stacking giant LEGO blocks, but it is actually the base of what will be a bridge for the West Valley light-rail line. Foam blocks helping UTA save time ...

SEATTLE -- Giant blocks of foam are being used in construction projects across the Puget Sound, and you might be driving over them everyday without even knowing it.The blocks recently caught the ...

Construction crews are using the relatively uncommon material at Clark County’s Salmon Creek Interchange Project.

Geofoam Blocks Stabilize Base on IL Roadway Improvement Construction. Foam-Control Geofoam is a cellular plastic material weighing 1% of conventional fill but with compressive resistance up to 5.8 ...