Project Summary Progress Quarry The Progress Quarry Development project in Beaverton, Oregon was a large scale project that needed some complex structural solutions. This commercial site in a residential setting consists of more than 30 Allan Block retaining walls varying in height with some exceeding twenty feet. The main walls of the project frame both sides of two land bridges with large culverts underneath. To manage the possible water flow below the walls, the flexibility of the culverts during construction and the traffic conditions on top of some of the walls, kept this project extremely interesting. PROJECT NAME & LOCATION Progress Quarry Development, Beaverton, OR PRODUCT AB Collection - AB Classic, AB Lites, AB Jumbo Junior, AB Courtyard Collec

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