Pinnacle Peak Fire Lookout
Parks & Open Space
Project details
Structural engineering for a public park lookout structure.

Communities Built by Inspired Engineering
Lund Opsahl is an award-winning structural engineering practice based in Seattle, Washington. Operating with a singular focus on structural engineering, it serves a broad range of building types - from civic and community centers to multi-family residential, healthcare, hospitality, and parks - with an emphasis on collaboration, creative structural solutions, and clarity of intent in construction. Founded by Marjorie Lund and Peter Opsahl, the practice has grown to a team of principals and associates serving clients across the Pacific Northwest.
Just 3.0 Label
Shawn RobergePrincipal
Tony MasonPrincipal
Owen BowerPrincipal
Amy KuoAssociate
Blake BerghSenior Design Engineer
Casey MooreSenior Design Engineer
Stephen LauAssociate
Marjorie LundPrincipal Emeritus
Peter OpsahlPrincipal Emeritus
Distilling the essential components of every project forms the basis of this structural work. Regardless of size, shape, or materials, the team brings a rigorous analytical approach to the design and detailing of new and complex building structures.
Balancing the preservation of historic aesthetics with modern safety upgrades, these engineering solutions extend the lifespan of existing structures. The process coordinates evaluations and design to address aging materials and undocumented building systems.
Developing and implementing efficient structural systems minimizes material use and waste. The practice champions cutting-edge sustainable materials, such as mass timber, and alternate project delivery methods to limit the environmental impact of construction.
Collaborating with architects and owners on feasibility studies and campus planning provides the analytical clarity needed to guide decades of future growth for major institutions.
Renovating, improving, or adding onto existing structures houses new occupants while preserving structural stability. The design team handles modifications ranging from minor layout updates to extensive specialty installations.
Facilitating the safe and efficient assembly of complex designs, this structural support leverages hands-on experience to assist contractors. Solutions include shoring systems, underpinning, temporary rigging, and crane logistics.
Providing customized structural solutions for unique, non-standard items that lack standard templates. Work includes movable art installations, industrial equipment platforms, pedestrian bridges, and medical equipment supports.
Government · Commercial · Education · Healthcare · Life Sciences · Transit · Industrial · Residential · Multifamily Residential · Parks & Open Space · Sports & Recreation · Hospitality · Aviation
Parks & Open Space
Structural engineering for a public park lookout structure.
Seattle, WA · Government
Community center renovation with structural seismic retrofit.
Seattle, WA · Multifamily Residential
Structural engineering for a multi-unit residential building.
Seattle, WA · Hospitality
Structural engineering for the renovation of a historic hotel.