The project: Seismic rehabilitation of the Clatskanie Elementary School 23,200-sf Gymnasium.

The goal: Strengthen the existing gymnasium structure to meet seismic safety standards so it can serve as an emergency shelter for the Clatskanie community during extreme events.

Project amenities: A large, wood-framed elementary school gymnasium designed for continued use by students and the community, with upgrades that allow it to function as a safe gathering place during emergencies.

Design approach: IMEG worked with the project team to develop a targeted design strategy that maximized the impact of the District’s Seismic Rehabilitation Grant. The design team focused on reinforcing structural components while minimizing disruption to existing infrastructure and school operations. A key design decision involved strengthening the roof diaphragm from below, preserving a recently replaced roof that the District was intent on protecting. The project was executed over summer break to avoid interfering with school activities. IMEG worked closely with the District and project team throughout the design and construction process to maintain scope and budget alignment at critical milestones.

Challenge: The existing canopy was found to have dry rot when soffit finishes were removed. Solution: IMEG collaborated with the contractor to replace the damaged areas quickly and cost-effectively, ensuring structural integrity and a high-quality outcome while remaining within budget.

Project outcome: The Clatskanie Elementary School Gymnasium now meets the LS performance level for a BSE-2E seismic event and the IO level for a BSE-1E event, per ASCE 41-17 and OSSC 2022. The completed facility provides a safer environment for students and staff and fulfills the District’s goal of offering a reliable emergency shelter for the community—ultimately enhancing the region’s overall emergency preparedness and resilience.