CASE STUDY | TN 516 AeroAggregates UL-FGA G15 Ultra-Lightweight Foamed Glass Aggregate PROJECT INFORMATION

PROJECT South Capitol Street OWNER District Department of Transportation (DDOT)

LOCATION Washington, DC CONTRACTOR South Capitol Bridgebuilders, JV between Archer Western Construction LLC (Walsh Group) and Granite Construction Co. DATE September 2019 VOLUME 11,000 CY

HIGHLY FRICTIONAL • NON-LEACHING • ROT-RESISTANT • NON-FLAMMABLE • DURABLE • SAFE

• The new South Capitol Bridge, also known as the Memorial Bridge, is a key link for Washington DC over the as it handles commuter traffic travelling between the city and Prince George’s County, , and from Southern Maryland.

• The $441 million USD design-build contract is the biggest infrastructure project handled by DDOT to date. Also included in the project is the rebuilding and reconfiguring of the /I-295 interchange, as well as two new interchanges at either end of the bridge.

• Two large, old sewer lines (over 9 ft wide) near the south interchange were a design challenge that was addressed using UL- FGA. The utility company considers these old and fragile sewers critical pieces of infrastructure.

• UL-FGA was used to raise the grade for the new interchange to minimizing surcharge on the critical sewers and the surrounding soft soils.

UL-FGA® — 25+ Years of Proven Performance

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