40th Parallel Structural Engineering is a boutique structural engineering firm based in Longmont, Colorado, specializing in custom residential and commercial projects across the Mountain West. Founded in 2022 by principals Daniel Belleau and Dana Michel, 40P was built deliberately: sharp and professional, but approachable and human. The team is small by design, which means direct access to experienced principals, real ownership of every project, and a collaborative environment.

40th Parallel Structural Engineering

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