Concrete Philosophy

"Every time we perform cost-alternate studies or work on design-build projects with contractors estimationg construction costs, we find…

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I-88 Fox River

Mchugh/Janssen & Spaans investigated both alternatives and concluded that the arch structure could be…

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Chicago-based Walsh Construction joined forces with Janssen & Spaans Engineering Inc. of…

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The stay cables consist of 0.6-in.- diameter greased and sheathed strands…

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Janssen & Spaans (J&S), one of ACE’s subconsultants, used their BRUCO (Bridge Under Construction)…

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JSE DEMOLITION ENGINEERING VIDEOS

Pomeroy-Mason Bridge

Pomeroy-Mason Bridge

Fulton Road Bridge